update mode of operation documentation for oil sensor

defined at compile time

.drone.yml

@@ -1,25 +1,46 @@
 ---
 kind: pipeline
 type: exec
-name: upload gateway firmare
+name: gateway pipeline
 
 platform:
   os: linux
   arch: arm
 
 steps:
-- name: upload
+- name: static check
   commands:
   - cd gateway
+  - pio check -e pro-mini
+  when:
+    target:
+      exclude:
+      - production
+
+- name: native tests
+  commands:
+  - cd gateway
+  - pio test -e native
+  when:
+    target:
+      exclude:
+      - production
+
+- name: upload firmware
+  commands:
+  - cd gateway
+  - service ser2net stop
   - pio run -e pro-mini
-  - echo -n 'reset' > /dev/ttyUSB0; sleep 1s; avrdude -patmega328p -carduino -P/dev/ttyUSB0 -b115200 -D -Uflash:w:.pio/build/pro-mini/firmware.hex:i -v
+  - echo 'reset' > /dev/ttyUSB0; sleep 1s; avrdude -patmega328p -carduino -P/dev/ttyUSB0 -b115200 -D -Uflash:w:.pio/build/pro-mini/firmware.hex:i -v
+  - service ser2net start
   when:
     target:
     - production
 
 trigger:
   branch:
-  - master
+  - gateway
+  - gw/*
 
 node:
   host: homebox

.gitattributes

@@ -0,0 +1,2 @@
+*.png filter=lfs diff=lfs merge=lfs -text
+*.fzz filter=lfs diff=lfs merge=lfs -text

.gitignore

@@ -1,9 +1,3 @@
-.metadata/
-.settings
-.project
-.cproject
-.ino*
-Release/
-Prototype/
-OTA/
-.*/
+.pio/
+.vscode/
+credentials.h

.gitmodules

@@ -1,3 +0,0 @@
-[submodule "libraries/RF24"]
-	path = libraries/RF24
-	url = https://git.hodos.ro/3rd_party/RF24.git

LICENSE

@@ -0,0 +1,674 @@
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+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) 2025  Nicolae Hodos
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) 2025  Nicolae Hodos
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.

README.md

@@ -0,0 +1,225 @@
+# A gateway for 433 MHz devices
+It uses [rc_switch](https://github.com/sui77/rc-switch) library for controlling wall sockets and receiving data from sensors. The library supports multiple protocols, the ones used by this gateway are:
+- Protocol 1, 2, 4, and 5 for wall switches
+- Protocol 2 for sensors
+- It can be extended to support more protocols
+
+It works with 2 possible hardwares: Arduino Pro Mini and ESP8266 (currently in use). The code specific to each microcontroller is activated using `#define` directive:
+``` C
+#if defined(ESP8266)
+#include "huzzah.h"
+#else
+#include "pro-mini.h"
+#endif
+
+```
+## Serial communication using Arduino Pro Mini
+It works with an Arduino Pro Mini 5v 16 Mhz, where the original bootloader has been replaced with Optiboot using this tutorial: https://andreasrohner.at/posts/Electronics/How-to-make-the-Watchdog-Timer-work-on-an-Arduino-Pro-Mini-by-replacing-the-bootloader/
+
+It is used as a serial gateway communicating in JSON format, when connected to a Raspberry Pi running Home Assistant.
+
+### Mode of operation:
+- it receives commands in JSON format over serial and translates them into RC commands to be sent to wall switches: ON/OFF
+- it receives sates from sensors, or RC commands from RC remotes, and translates them into JSON, which is written on `Serial` to be consumed by HA
+
+## MQTT communication using ESP8266
+It works with any ESP8266 board, an [Adafruit Huzzah](https://learn.adafruit.com/adafruit-huzzah-esp8266-breakout) in this case.
+
+It is used as a gateway communicating in JSON format with Home Assistant, by publishing and subscribing to topics on MQTT. Devices on Home Assistant side are configured automatically using [MQTT discovery](https://www.home-assistant.io/integrations/mqtt/#configuration-via-mqtt-discovery).
+
+### Mode of operation:
+- it receives commands over MQTT and translates them into RC commands to be sent to wall switches: ON/OFF
+- it receives sates from sensors, or RC commands from RC remotes, translates them into JSON and updates devices in HA by publishing messages on MQTT
+
+## Sensors
+Sensors transmit state using `Protocol 2`, a 32 bit unsigned number.
+#### Protocol structure
+```
+   STATE
+     |
+1010|1|101010101|1010101010101|10101
+----|-----------|-------------|-----
+TYPE|    VALUE  |     VCC     |  ID
+```
+where:
+- **ID**: uniquely identifies a sensor
+- **TYPE**: the type of the sensor, see bellow
+- **VALUE**: used for _GENERIC_, _HUMIDITY_ and _TEMPERATURE_ sensors
+- **STATE**: used for _CONTACT_ sensor only; since it doesn't conflict with other sensor types, it uses one bit from **VALUE**
+- **VCC**: battery voltage, used to detect when batteries need to be replaced
+#### Sensors types
+```C++
+enum SensorType : uint8_t {
+	GENERIC = 4,
+	HUMIDITY = 5,
+	TEMPERATURE = 6,
+	CONTACT = 7
+};
+```
+#### Sensors IDs
+```C++
+enum SensorId : uint8_t {
+	WINDOW1 = 1,
+	WINDOW2 = 2,
+	WATER_SENSOR = 3,
+	TEMP_SENSOR = 4,
+	LIGHT_SENSOR = 5,
+	MOVEMENT_SENSOR = 6,
+	OIL_SENSOR = 7
+};
+```
+### Devices
+#### [Servers room temperature](./devices/temp_sensor/)
+Type: **TEMPERATURE**
+##### Value and voltage
+```json
+{
+  "sensor": {
+    "id": 4,
+    "diagnostic": {
+      "voltage": 2.239
+    },
+    "temperature": 16.2
+  }
+}
+```
+##### Value only
+```json
+{
+  "sensor": {
+    "id": 4,
+    "temperature": 16.2
+  }
+}
+```
+#### [Oil tank sensor](./devices/oil_sensor/)
+Type: **GENERIC**
+##### Value and voltage
+```json
+{
+  "sensor": {
+    "id": 7,
+    "diagnostic": {
+      "voltage": 4.282
+    },
+    "value": 13
+  }
+}
+```
+#### [Presence sensor](./devices/presence_sensor/)
+Type: **CONTACT**
+##### Value and voltage
+```json
+{
+  "sensor": {
+    "id": 8,
+    "diagnostic": {
+      "voltage": 3.28
+    },
+    "value": 1
+  }
+}
+```
+## Switches
+Gateway receives remote commands over RC Switch and translates them into JSON.
+#### Protocol 1
+##### ON
+```json
+{
+  "rcSwitch": {
+    "protocol": 1,
+    "state": true,
+    "group": "1",
+    "channel": 1,
+    "raw_value": 5571921
+  }
+}
+```
+##### OFF
+```json
+{
+  "rcSwitch": {
+    "protocol": 1,
+    "state": false,
+    "group": "1",
+    "channel": 1,
+    "raw_value": 5571921
+  }
+}
+```
+
+#### Protocol 2
+```json
+{
+  "rcSwitch": {
+    "protocol": 2,
+    "value": 2650807673
+  }
+}
+```
+
+#### Other protocols
+```json
+{
+  "rcSwitch": {
+    "protocol": 4,
+    "value": 1234567890
+  }
+}
+```
+### DHT
+Reads local DHT11 sensor and outputs it into JSON.
+```
+{
+  "dht11": {
+    "temperature": 31.9,
+    "humidity": 45
+  }
+}
+```
+---
+## Commands from Home Assistant
+It receives commands in JSON format, over serial or MQTT, and executes them.
+#### Protocol 1
+##### ON
+```json
+{
+  "rcSwitch": {
+    "protocol": 1,
+    "group": "00001",
+    "channel": 1,
+    "state": true
+  }
+}
+```
+##### OFF
+```json
+{
+  "rcSwitch": {
+    "protocol": 1,
+    "group": "00001",
+    "channel": 1,
+    "state": false
+  }
+}
+```
+
+#### Protocol 2
+```json
+{
+  "rcSwitch": {
+    "protocol": 2,
+    "value": "10010110000000000001110101111001"
+  }
+}
+```
+
+#### Other protocols
+```json
+{
+  "rcSwitch": {
+    "protocol": 4,
+    "value": "010001101001100101110100"
+  }
+}
+```

devices/README.md

@@ -0,0 +1,10 @@
+# Gateway & sensors
+
+## Branches
+Each sensor has a dedicated branch. E.g.:
+* temp_sensor
+* oil_sensor
+
+The gateway uses `master` as the main branch. Other sensors' branches get merged once they are ready for production.
+
+## Release flow

devices/oil_sensor/README.md

@@ -0,0 +1,20 @@
+# Oil sensor
+
+Using an ultra sonic sensor, it detects the amount of oil used for heating.
+
+For optimization purposes, it uses 2 microcontrollers:
+#### **Arduino Pro Mini**
+It offers a precise quartz clock, required by the ultra sonic sensor to accurately determine the level of oil in the tank. But because it has a high consumption, it is not suited for battery powered devices.
+#### **ATTiny85**
+It has an inaccurate quartz clock that cannot be used for the sonar sensor, but it is more than enough to be used as a wake-up device for Arduino Pro Mini. Due to the very low power consumption, it is ideal for battery powered devices.
+
+## Mode of operation
+ATTiny85 is connected directly to the battery and acts as a power switch:
+1. on regular intervals, ~6 hours, it powers on the Arduino Pro Mini
+1. Arduino Pro Mini will:
+    - read the oil tank level
+    - send the information to the RC Gateway
+    - signal the ATTiny85 that it has finished
+1. turns off the Arduino Pro Mini
+
+![Schematics](docs/oil_sensor_bb.png)

devices/oil_sensor/include/SonarSensor.h

@@ -0,0 +1,16 @@
+#pragma once
+
+#include "GenericSensor.h"
+#include <NewPing.h>
+
+
+class SonarSensor : public GenericSensor {
+private:
+	NewPing sonar{ TRIGGER_PIN, ECHO_PIN, MAX_DISTANCE };
+public:
+	SonarSensor(short id) : GenericSensor(id) {}
+
+	unsigned int scan() {
+		return sonar.convert_cm(sonar.ping_median());
+	}
+};

devices/oil_sensor/platformio.ini

@@ -0,0 +1,34 @@
+; PlatformIO Project Configuration File
+;
+;   Build options: build flags, source filter
+;   Upload options: custom upload port, speed and extra flags
+;   Library options: dependencies, extra library storages
+;   Advanced options: extra scripting
+;
+; Please visit documentation for the other options and examples
+; https://docs.platformio.org/page/projectconf.html
+
+[env:attiny85]
+platform = atmelavr
+board = attiny85
+framework = arduino
+build_src_filter = +<switch.cpp>
+lib_extra_dirs = 
+	../../lib
+upload_protocol = stk500v1
+upload_flags = 
+	-P$UPLOAD_PORT
+	-b$UPLOAD_SPEED
+upload_port = /dev/ttyACM0
+upload_speed = 19200
+
+[env:pro_mini]
+platform = atmelavr
+board = pro16MHzatmega168
+framework = arduino
+build_src_filter = +<oil_sensor.cpp>
+lib_deps = 
+	teckel12/NewPing@^1.9.4
+	sui77/rc-switch @ ^2.6.4
+lib_extra_dirs = 
+	../../lib

devices/oil_sensor/src/oil_sensor.cpp

@@ -0,0 +1,37 @@
+#include <Arduino.h>
+
+#define SENDER_GND    10
+#define SENDER_DATA   11
+#define SENDER_VCC    12
+#define TRIGGER_PIN   2
+#define ECHO_PIN      3
+#define NOTIFY_PIN    9
+
+#define MAX_DISTANCE  200		// 2 meters
+
+#include "SonarSensor.h"
+
+SonarSensor oilSensor(OIL_SENSOR);
+
+void setup() {
+	Serial.begin(9600);
+	Serial.println("starting...");
+
+	pinMode(SENDER_GND, OUTPUT);
+	digitalWrite(SENDER_GND, LOW);
+	pinMode(SENDER_VCC, OUTPUT);
+	digitalWrite(SENDER_VCC, HIGH);
+	TinySwitch::setup(SENDER_DATA);
+
+	delay(300);
+	unsigned int distance = oilSensor.scan();
+	Serial.println(distance);
+	if (distance) oilSensor.sendValueAndVoltage(distance);
+	delay(200);
+	pinMode(NOTIFY_PIN, OUTPUT);
+	digitalWrite(NOTIFY_PIN, LOW);
+	Serial.println("finished");
+}
+
+void loop() {
+}

devices/oil_sensor/src/switch.cpp

@@ -0,0 +1,41 @@
+#include <Arduino.h>
+#include <TinyPower.h>
+
+#define CONTROLLER_PIN   	PIN_B4
+#define NOTIFICATION_PIN    PIN_B0
+
+#define HOUR_INTERVAL 450							// 450*8s = ~1 hour
+#define WAKE_INTERVAL (HOUR_INTERVAL*12)			// ~12 hours
+
+
+volatile int counter = 0;
+volatile bool wakeUp = true;
+
+void setup() {
+	pinMode(PIN_B3, INPUT);
+	pinMode(CONTROLLER_PIN, OUTPUT);
+	digitalWrite(CONTROLLER_PIN, LOW);
+	pinMode(NOTIFICATION_PIN, INPUT_PULLUP);
+	TinyPower::setup();
+	TinyPower::enableWdt(WDTO_8S);
+}
+
+void loop() {
+	if (wakeUp) {
+		wakeUp = false;
+		digitalWrite(CONTROLLER_PIN, HIGH);
+	}
+	TinyPower::sleep(NOTIFICATION_PIN);
+}
+
+ISR(WDT_vect) {
+	counter++;
+	if ((counter % WAKE_INTERVAL == 0)) {
+		wakeUp = true;
+	}
+}
+
+ISR(PCINT0_vect) {
+	if (!digitalRead(NOTIFICATION_PIN))
+		digitalWrite(CONTROLLER_PIN, LOW);
+}

devices/presence_sensor/README.md

@@ -0,0 +1,5 @@
+# Presence ticker
+
+It sends state on regular intervals, so that presence of the bearer can be tracked.
+
+![Schematics](docs/presence_sensor_bb.png)

devices/presence_sensor/platformio.ini

@@ -8,15 +8,17 @@
 ; Please visit documentation for the other options and examples
 ; https://docs.platformio.org/page/projectconf.html
 
-[env:pro-mini]
+[env:attiny85]
 platform = atmelavr
-board = miniatmega328
+board = attiny85
 framework = arduino
-lib_extra_dirs =
-    ../libraries
-lib_deps = 
-	sui77/rc-switch@^2.6.3
-	bblanchon/ArduinoJson@6.16.1
-	adafruit/Adafruit Unified Sensor@^1.1.4
-	adafruit/DHT sensor library@1.3.10
-upload_port = /dev/ttyUSB0
+lib_deps =
+	sui77/rc-switch @ ^2.6.4
+lib_extra_dirs = 
+	../../lib
+upload_protocol = stk500v1
+upload_flags = 
+	-P$UPLOAD_PORT
+	-b$UPLOAD_SPEED
+upload_port = /dev/ttyACM0
+upload_speed = 19200

devices/presence_sensor/src/presence_sensor.cpp

@@ -0,0 +1,37 @@
+#include <Arduino.h>
+#include <TinyPower.h>
+#include "ContactSensor.h"
+
+#define MINUTES(value)		(uint16_t)(value*60/8)	// minutes*60(seconds)/8s(WDT)
+#define HOURS(value)		(uint16_t)(MINUTES(value)*60)
+
+#define SEND_INTERVAL		MINUTES(2)
+#define SEND_VCC_INTERVAL	HOURS(6)
+
+// Pins
+#define SENDER_PIN PIN_B2
+
+volatile uint16_t counter = 0;
+ContactSensor sensor(PRESENCE_SENSOR);
+
+void setup() {
+
+	TinySwitch::setup(SENDER_PIN);
+	TinyPower::setup();
+	TinyPower::enableWdt(WDTO_8S);
+}
+
+void loop() {
+	if (counter == 0) {
+		sensor.sendStateAndVoltage(false);
+	} else if (counter % SEND_INTERVAL == 0) {
+		sensor.sendState(false);
+	}
+	TinyPower::sleep();
+}
+
+ISR(WDT_vect) {
+	if (++counter % SEND_VCC_INTERVAL == 0) {
+		counter = 0;
+	}
+}

devices/temp_sensor/.gitignore

@@ -0,0 +1,5 @@
+.pio
+.vscode/.browse.c_cpp.db*
+.vscode/c_cpp_properties.json
+.vscode/launch.json
+.vscode/ipch

devices/temp_sensor/README.md

@@ -1,13 +1,13 @@
 # Temperature sensor
 
 It uses a [TMP36](https://cloud.hodos.ro/wiki/ha/datasheets/TMP35_36_37.pdf) to read temperature and it is optimised for power consumption.  
-It uses watch dog that wakes every 8s and increments a counter. Once the counter reaches a certain value (e.g. equivalent to 5 mins), it will read and send temperature to the gateway.  
-Every hour the voltage is also read and sent.
+It uses watch dog that wakes every 8s and increments a counter. Once the counter reaches a certain value (e.g. equivalent to 1 hour), it will read and send temperature to the gateway.  
+Every 12 hours the voltage is also read and sent.
 
-According to the calculator here, https://www.geekstips.com/battery-life-calculator-sleep-mode/, a cell coin battery with a capacity of `240mAh` should last for 
-`~ 3 months (108 days)`, given that:
+According to the [battery life calculator](https://www.allaboutcircuits.com/tools/battery-lifetime-calculator/), a cell coin battery with a capacity of `200mAh` should last for 
+`~ 3 years`, given that:
 - Current consumption of device during sleep is `4.5uA`
-- Device wakes up every `5 mins (12 times/hour)`
+- Device wakes up every `hour`
 - Current consumption of device during wake is `10mA`
 - Duration of wake time is `1000 ms`
 

devices/temp_sensor/include/README

@@ -0,0 +1,39 @@
+
+This directory is intended for project header files.
+
+A header file is a file containing C declarations and macro definitions
+to be shared between several project source files. You request the use of a
+header file in your project source file (C, C++, etc) located in `src` folder
+by including it, with the C preprocessing directive `#include'.
+
+```src/main.c
+
+#include "header.h"
+
+int main (void)
+{
+ ...
+}
+```
+
+Including a header file produces the same results as copying the header file
+into each source file that needs it. Such copying would be time-consuming
+and error-prone. With a header file, the related declarations appear
+in only one place. If they need to be changed, they can be changed in one
+place, and programs that include the header file will automatically use the
+new version when next recompiled. The header file eliminates the labor of
+finding and changing all the copies as well as the risk that a failure to
+find one copy will result in inconsistencies within a program.
+
+In C, the usual convention is to give header files names that end with `.h'.
+It is most portable to use only letters, digits, dashes, and underscores in
+header file names, and at most one dot.
+
+Read more about using header files in official GCC documentation:
+
+* Include Syntax
+* Include Operation
+* Once-Only Headers
+* Computed Includes
+
+https://gcc.gnu.org/onlinedocs/cpp/Header-Files.html

devices/temp_sensor/lib/README

@@ -0,0 +1,46 @@
+
+This directory is intended for project specific (private) libraries.
+PlatformIO will compile them to static libraries and link into executable file.
+
+The source code of each library should be placed in a an own separate directory
+("lib/your_library_name/[here are source files]").
+
+For example, see a structure of the following two libraries `Foo` and `Bar`:
+
+|--lib
+|  |
+|  |--Bar
+|  |  |--docs
+|  |  |--examples
+|  |  |--src
+|  |     |- Bar.c
+|  |     |- Bar.h
+|  |  |- library.json (optional, custom build options, etc) https://docs.platformio.org/page/librarymanager/config.html
+|  |
+|  |--Foo
+|  |  |- Foo.c
+|  |  |- Foo.h
+|  |
+|  |- README --> THIS FILE
+|
+|- platformio.ini
+|--src
+   |- main.c
+
+and a contents of `src/main.c`:
+```
+#include <Foo.h>
+#include <Bar.h>
+
+int main (void)
+{
+  ...
+}
+
+```
+
+PlatformIO Library Dependency Finder will find automatically dependent
+libraries scanning project source files.
+
+More information about PlatformIO Library Dependency Finder
+- https://docs.platformio.org/page/librarymanager/ldf.html

devices/temp_sensor/platformio.ini

@@ -15,9 +15,9 @@ framework = arduino
 lib_deps =
 	adafruit/Adafruit Unified Sensor @ ^1.1.4
     adafruit/DHT sensor library@^1.4.3
+	sui77/rc-switch @ ^2.6.4
 lib_extra_dirs = 
-	../libraries
-	~/Arduino/libraries
+	../../lib
 build_flags = -D DHT_SENSOR=0
 upload_protocol = stk500v1
 upload_flags = 

devices/temp_sensor/src/temp_sensor.cpp

@@ -3,8 +3,8 @@
 #include "Tmp36Sensor.h"
 #include "Dht22Sensor.h"
 
-#define SEND_INTERVAL 37						// 37*8s = ~5min
-#define SEND_VCC_INTERVAL (SEND_INTERVAL*6)		// every half hour
+#define SEND_INTERVAL 450						// 450*8s = ~60min
+#define SEND_VCC_INTERVAL (SEND_INTERVAL*12)	// every 12 hours
 
 // Pins
 #define SENDER PIN_B2

devices/temp_sensor/test/README

@@ -0,0 +1,11 @@
+
+This directory is intended for PlatformIO Unit Testing and project tests.
+
+Unit Testing is a software testing method by which individual units of
+source code, sets of one or more MCU program modules together with associated
+control data, usage procedures, and operating procedures, are tested to
+determine whether they are fit for use. Unit testing finds problems early
+in the development cycle.
+
+More information about PlatformIO Unit Testing:
+- https://docs.platformio.org/page/plus/unit-testing.html

gateway/README.md

@@ -1,57 +0,0 @@
-# A gateway for 433 MHz devices
-It uses [rc_switch](https://github.com/sui77/rc-switch) library for controlling wall sockets.
-
-It also supports receiving commands from the same protocol.
-
-It acts as a serial gateway and it is connected to a Raspberry Pi running Home assistant.
-
-It uses an Arduino Pro Mini 5v 16 Mhz.
-The original bootloader has been replaced with Optiboot using this tutorial: https://andreasrohner.at/posts/Electronics/How-to-make-the-Watchdog-Timer-work-on-an-Arduino-Pro-Mini-by-replacing-the-bootloader/
-
-## Read sensors
-### DHT
-```
-{
-  "dht11": {
-    "temperature": 31.9,
-    "humidity": 45
-  }
-}
-```
-### RC Switch
-#### on
-```
-[
-  {
-    "rcSwitch": {
-      "protocol": 1,
-      "group": "00001",
-      "channel": 1,
-      "state": true
-    }
-  }
-]
-```
-#### off
-```
-[
-  {
-    "rcSwitch": {
-      "protocol": 1,
-      "group": "00001",
-      "channel": 1,
-      "state": false
-    }
-  }
-]
-```
-```
-[
-  {
-    "rcSwitch": {
-      "protocol": 2,
-      "value": "10011110000000000001110101111001"
-    }
-  }
-]
-```

gateway/src/gateway.cpp

@@ -1,166 +0,0 @@
-#include <Arduino.h>
-#include <RCSwitch.h>
-#include <ArduinoJson.h>
-#include <Adafruit_Sensor.h>
-#include <DHT.h>
-#include "Tiny.h"
-
-#define RESET_PIN 10
-#define SEND_PIN 11
-#define RECEIVE_PIN 2
-#define DHT11_PIN 12
-
-#define READ_INTERVAL(c) (c*60*1000UL)	// read interval in minutes
-
-unsigned long currentTime = 0;
-
-RCSwitch mySwitch = RCSwitch();
-DHT dht = DHT(DHT11_PIN, DHT11);
-
-void readRcSwitch(JsonDocument& jsonDoc);
-void readCommand();
-void readDht(JsonDocument& jsonDoc);
-
-void setup() {
-	digitalWrite(RESET_PIN, HIGH);
-	pinMode(LED_BUILTIN, OUTPUT);
-	pinMode(RESET_PIN, OUTPUT);
-
-	mySwitch.enableReceive(digitalPinToInterrupt(RECEIVE_PIN));
-	mySwitch.enableTransmit(SEND_PIN);
-	mySwitch.setRepeatTransmit(10);
-
-	dht.begin();
-
-	Serial.begin(9600);
-
-	delay(1000);
-}
-
-void loop() {
-	currentTime = millis();
-	StaticJsonDocument<200> jsonDoc;
-	readCommand();
-	readRcSwitch(jsonDoc);
-	readDht(jsonDoc);
-	if (!jsonDoc.isNull()) {
-		serializeJson(jsonDoc, Serial);
-		Serial.println();
-	}
-}
-
-void readRcSwitch(JsonDocument& jsonDoc) {
-	if (mySwitch.available()) {
-		unsigned long value = mySwitch.getReceivedValue();
-		mySwitch.resetAvailable();
-
-		if (mySwitch.getReceivedProtocol() == 2) {
-			if (value == 637541753L || value == 771759481L) {
-				JsonObject motion = jsonDoc.createNestedObject("motion");
-				motion["kitchen"] = value == 637541753L ? "on" : "off";
-				return;
-			}
-			if (value == 1879048230L || value == 1879048198L) {
-				JsonObject motion = jsonDoc.createNestedObject("motion");
-				motion["basement"] = value == 1879048230L ? "on" : "off";
-				return;
-			}
-			if (GET_TYPE(value) == SensorType::GENERIC) {
-				JsonObject sensor = jsonDoc.createNestedObject("sensor");
-				sensor["id"] = ID(value);
-				sensor["value"] = GET_VALUE(value);
-				sensor["voltage"] = GET_VCC(value);
-				return;
-			}
-			if (GET_TYPE(value) == SensorType::TEMPERATURE) {
-				JsonObject sensor = jsonDoc.createNestedObject("sensor");
-				sensor["id"] = ID(value);
-				sensor["temperature"] = GET_TEMP(value);
-				sensor["voltage"] = GET_VCC(value);
-				return;
-			}
-			if (GET_TYPE(value) == SensorType::HUMIDITY) {
-				JsonObject sensor = jsonDoc.createNestedObject("sensor");
-				sensor["id"] = ID(value);
-				sensor["humidity"] = GET_HUMIDITY(value);
-				sensor["voltage"] = GET_VCC(value);
-				return;
-			}
-			if (GET_TYPE(value) == SensorType::CONTACT) {
-				JsonObject sensor = jsonDoc.createNestedObject("contact");
-				sensor["id"] = ID(value);
-				sensor["state"] = GET_STATE(value) ? "on" : "off";
-				sensor["voltage"] = GET_VCC(value);
-				return;
-			}
-		}
-		JsonObject rcSwitch = jsonDoc.createNestedObject("rcSwitch");
-		rcSwitch["protocol"] = mySwitch.getReceivedProtocol();
-		rcSwitch["value"] = value;
-	}
-}
-
-void blink() {
-	digitalWrite(LED_BUILTIN, HIGH);
-	delay(200);
-	digitalWrite(LED_BUILTIN, LOW);
-}
-
-void runJsonCommand(String cmd) {
-	StaticJsonDocument<256> jsonArray;
-	DeserializationError err = deserializeJson(jsonArray, cmd);
-	if (err == DeserializationError::Ok) {
-		JsonArray array = jsonArray.as<JsonArray>();
-		for(JsonVariant jsonDoc : array) {
-			if (jsonDoc.containsKey("rcSwitch")) {
-				JsonObject rcSwitch = jsonDoc["rcSwitch"];
-				unsigned int protocol = rcSwitch["protocol"];
-				if (protocol == 1) {
-					mySwitch.setProtocol(protocol);
-					char* group = rcSwitch["group"];
-					int channel = rcSwitch["channel"];
-					if (rcSwitch["state"]) {
-						mySwitch.switchOn(group, channel);
-					} else {
-						mySwitch.switchOff(group, channel);
-					}
-				} else {
-					mySwitch.setProtocol(protocol);
-					mySwitch.send(rcSwitch["value"]);
-					// Serial.println((const char*)rcSwitch["value"]);
-				}
-				blink();
-			} else {
-				Serial.println(err.c_str());
-			}
-		}
-	}
-}
-
-void readCommand() {
-	if (Serial.available() > 0) {
-		String cmd = Serial.readStringUntil('\n');
-		if (cmd == "reset") {
-			Serial.println("resetting...");
-			delay(200);
-			digitalWrite(RESET_PIN, LOW);
-			Serial.println("resetting failed");
-		}
-		if (cmd.endsWith(",")) {
-			cmd = cmd.substring(0, cmd.lastIndexOf(','));
-		}
-		cmd = "[" + cmd + "]";
-		Serial.println(cmd);
-		runJsonCommand(cmd);
-	}
-}
-
-void readDht(JsonDocument& jsonDoc) {
-	static unsigned long lastReadTime = 0;
-	if (currentTime > lastReadTime) {
-		lastReadTime = currentTime + READ_INTERVAL(5);
-		JsonObject dht11 = jsonDoc.createNestedObject("dht11");
-		dht11["temperature"] = dht.readTemperature();
-		dht11["humidity"] = dht.readHumidity();
-	}
-}

include/Dht.h

@@ -0,0 +1,40 @@
+#if DHT_SENSOR
+
+#include <ArduinoJson.h>
+#include <Adafruit_Sensor.h>
+#include <DHT.h>
+
+#define DHT11_PIN 12
+#define READ_INTERVAL(c) (c*60*1000UL)	// read interval in minutes
+
+DHT dht = DHT(DHT11_PIN, DHT11);
+uint32_t currentTime = 0;
+
+namespace Dht {
+	void setup() {
+		dht.begin();
+	}
+
+	void read() {
+		currentTime = millis();
+		static uint32_t lastReadTime = 0;
+		if (currentTime > lastReadTime) {
+			lastReadTime = currentTime + READ_INTERVAL(5);
+			StaticJsonDocument<200> jsonDoc;
+			JsonObject dht11 = jsonDoc.createNestedObject("dht11");
+			dht11["temperature"] = dht.readTemperature();
+			dht11["humidity"] = dht.readHumidity();
+			serializeJson(jsonDoc, Serial);
+			Serial.println();
+		}
+	}
+}
+#else
+namespace Dht {
+	void setup() {
+	}
+
+	void read() {
+}
+}
+#endif

include/Protocol.h

@@ -0,0 +1,35 @@
+#pragma once
+#include <ArduinoJson.h>
+#include <RCSwitch.h>
+
+enum ProtocolNo : uint8_t {
+    NO_PROTOCOL = 0,
+    PROTOCOL_1 = 1,
+    PROTOCOL_2 = 2,
+    PROTOCOL_13 = 13
+};
+
+class Protocol {
+protected:
+    ProtocolNo no;
+
+public:
+    explicit Protocol(ProtocolNo protocol) : no(protocol) {}
+
+    Protocol& setProtocol(uint8_t p) {
+        no = static_cast<ProtocolNo>(p);
+        return *this;
+    }
+
+    virtual void fromJson(JsonObjectConst& rcSwitch, RCSwitch& rcDevice) {
+        ProtocolNo protocol = rcSwitch["protocol"];
+        rcDevice.setProtocol(protocol);
+        rcDevice.send(rcSwitch["value"]);
+    }
+
+    virtual void toJson(uint32_t value, JsonDocument& jsonDoc) {
+        JsonObject rcSwitch = jsonDoc.createNestedObject("rcSwitch");
+        rcSwitch["protocol"] = no;
+        rcSwitch["value"] = value;
+    }
+} fallbackProtocol{ NO_PROTOCOL };

include/Protocol_1.h

@@ -0,0 +1,36 @@
+#pragma once
+#include "Protocol.h"
+#include "RcDecoder.h"
+
+class Protocol_1 : public Protocol {
+
+public:
+    Protocol_1() : Protocol(PROTOCOL_1) {}
+
+    void fromJson(JsonObjectConst& rcSwitch, RCSwitch& rcDevice) override {
+        ProtocolNo protocol = rcSwitch["protocol"];
+        rcDevice.setProtocol(protocol);
+        const char* group = rcSwitch["group"];
+        int channel = rcSwitch["channel"];
+        rcSwitch["state"] ? rcDevice.switchOn(group, channel) : rcDevice.switchOff(group, channel);
+    }
+
+    void toJson(uint32_t value, JsonDocument& jsonDoc) override {
+        JsonObject rcSwitch = jsonDoc.createNestedObject("rcSwitch");
+        rcSwitch["protocol"] = no;
+        RcDecoder decoder;
+        decoder.decode(value);
+        rcSwitch["state"] = decoder.state;
+        rcSwitch["group"] = decoder.group;
+        rcSwitch["channel"] = decoder.device;
+        rcSwitch["raw_value"] = value;
+    }
+
+#if defined(ESP8266)
+    static std::string buildId(const char* group, const uint8_t channel) {
+        char uId[30];
+        sprintf(uId, "%s_%u", group, channel);
+        return std::string{ uId };
+    }
+#endif
+} protocol1;

include/Protocol_2.h

@@ -0,0 +1,35 @@
+#pragma once
+#include "Protocol.h"
+#include "TinyComponent.h"
+
+class Protocol_2 : public Protocol {
+
+public:
+    Protocol_2() : Protocol(PROTOCOL_2) {}
+
+    void toJson(uint32_t value, JsonDocument& jsonDoc) override {
+        switch (value) {
+        case 637541753L:
+        case 771759481L: {
+            JsonObject motion = jsonDoc.createNestedObject("motion");
+            motion["kitchen"] = value == 637541753L ? "on" : "off";
+            break;
+        }
+        case 1879048230L:
+        case 1879048198L: {
+            JsonObject motion = jsonDoc.createNestedObject("motion");
+            motion["basement"] = value == 1879048230L ? "on" : "off";
+            break;
+        }
+        default:
+            StaticJsonDocument<200> jsonSensor;
+            if (buildSensorJson(value, jsonSensor)) {
+                jsonDoc.set(jsonSensor);
+            } else {
+                Protocol::toJson(value, jsonDoc);
+            }
+            break;
+        }
+    }
+
+} protocol2;

include/Protocol_Doorbell.h

@@ -0,0 +1,62 @@
+#pragma once
+
+#if ENABLE_DOORBELL
+
+#include "Protocol.h"
+
+#define BIT_LENGTH 40
+#define BIT_LENGTH_3 BIT_LENGTH*3
+#define TX_DELAY 620
+
+class Protocol_Doorbell : public Protocol {
+
+public:
+    Protocol_Doorbell() : Protocol(PROTOCOL_13) {}
+
+    void ring(const char* value) {
+        preamble();
+        for (int i = 0; i < 7; i++) {
+            delayMicroseconds(TX_DELAY);
+            code(value);
+        }
+    }
+
+private:
+    void transmitBit(uint8_t value) {
+        digitalWrite(SEND_PIN, value);
+        delayMicroseconds(BIT_LENGTH);
+        digitalWrite(SEND_PIN, LOW);
+    }
+
+    void transmitHigh() {
+        digitalWrite(SEND_PIN, HIGH);
+        delayMicroseconds(BIT_LENGTH_3);
+        digitalWrite(SEND_PIN, LOW);
+        delayMicroseconds(BIT_LENGTH);
+    }
+
+    void transmitLow() {
+        digitalWrite(SEND_PIN, HIGH);
+        delayMicroseconds(BIT_LENGTH);
+        digitalWrite(SEND_PIN, LOW);
+        delayMicroseconds(BIT_LENGTH_3);
+    }
+
+    void preamble() {
+        noInterrupts();
+        for (int i = 0; i < 370; i++) {
+            transmitBit(HIGH);
+            transmitBit(LOW);
+        }
+        interrupts();
+    }
+
+    void code(const char* value) {
+        noInterrupts();
+        for (const char* p = value; *p; p++) {
+            *p == '1' ? transmitHigh() : transmitLow();
+        }
+        interrupts();
+    }
+} doorbell;
+#endif

include/README

@@ -0,0 +1,39 @@
+
+This directory is intended for project header files.
+
+A header file is a file containing C declarations and macro definitions
+to be shared between several project source files. You request the use of a
+header file in your project source file (C, C++, etc) located in `src` folder
+by including it, with the C preprocessing directive `#include'.
+
+```src/main.c
+
+#include "header.h"
+
+int main (void)
+{
+ ...
+}
+```
+
+Including a header file produces the same results as copying the header file
+into each source file that needs it. Such copying would be time-consuming
+and error-prone. With a header file, the related declarations appear
+in only one place. If they need to be changed, they can be changed in one
+place, and programs that include the header file will automatically use the
+new version when next recompiled. The header file eliminates the labor of
+finding and changing all the copies as well as the risk that a failure to
+find one copy will result in inconsistencies within a program.
+
+In C, the usual convention is to give header files names that end with `.h'.
+It is most portable to use only letters, digits, dashes, and underscores in
+header file names, and at most one dot.
+
+Read more about using header files in official GCC documentation:
+
+* Include Syntax
+* Include Operation
+* Once-Only Headers
+* Computed Includes
+
+https://gcc.gnu.org/onlinedocs/cpp/Header-Files.html

include/RcDecoder.h

@@ -0,0 +1,38 @@
+#define RC_STATE(value) value & 0x1
+#define RC_DEVICE(value) (value >> 1) & 0x1F
+#define RC_GROUP(value) (value >> 6) & 0x1F
+
+struct RcDecoder {
+    bool state;
+    char group[6];
+    uint8_t device;
+
+    void decode(uint32_t value) {
+        value = value >> 2;
+        uint32_t res = 0;
+        for (int i = 0; i < 12; i++) {
+            res |= ((value & 1) ^ 1) << i;
+            value = value >> 2;
+        }
+
+        state = RC_STATE(res);
+        sprintf(group, "%05u", RC_GROUP(res));
+        switch (RC_DEVICE(res)) {
+        case 0b10000:
+            device = 1;
+            break;
+        case 0b01000:
+            device = 2;
+            break;
+        case 0b00100:
+            device = 3;
+            break;
+        case 0b00010:
+            device = 4;
+            break;
+        case 0b00001:
+            device = 5;
+            break;
+        }
+    }
+};

include/TinyComponent.h

@@ -0,0 +1,34 @@
+#include <ArduinoJson.h>
+#include "Tiny.h"
+
+bool buildSensorJson(uint32_t value, JsonDocument& jsonDoc) {
+    JsonObject sensor = jsonDoc.createNestedObject("sensor");
+    sensor["id"] = ID(value);
+
+    float voltage = (float)GET_VCC(value) / 1000;
+    JsonObject diagnostic = sensor.createNestedObject("diagnostic");
+    if (voltage != 0) {
+        diagnostic["voltage"] = voltage;
+    } else {
+        diagnostic["voltage"] = "";
+    }
+
+    switch (GET_TYPE(value)) {
+    case SensorType::GENERIC:
+        sensor["value"] = GET_VALUE(value);
+        break;
+    case SensorType::TEMPERATURE:
+        sensor["temperature"] = (float)GET_TEMP(value) / 10;
+        break;
+    case SensorType::HUMIDITY:
+        sensor["humidity"] = (float)GET_HUMIDITY(value) / 10;
+        break;
+    case SensorType::CONTACT:
+        sensor["state"] = GET_STATE(value) ? "ON" : "OFF";
+        break;
+    default:
+        return false;
+    }
+
+    return true;
+}

include/devices.h

@@ -0,0 +1,82 @@
+#pragma once
+
+#include "rc_devices.h"
+
+using namespace Ha;
+
+auto roomSensor = Builder<TemperatureSensor>(TEMP_SENSOR)
+    .asDevice(&DeviceConfig::create(TEMP_SENSOR)
+        .withName("Servers room")
+        .withManufacturer("Atmel")
+        .withModel("AtTiny85")
+        .withArea("Basement")
+        .withParent(gatewayDevice))
+    .withValueTemplate("{{ value_json.sensor.temperature }}")
+    .addPreconfigured(batterySensors<TemperatureSensor>(TEMP_SENSOR, BATTERY_PERCENTAGE_TEMPLATE(2.5, 2)))
+    .build();
+
+auto tankSensor = Builder<Sensor>(new Sensor{ "Level", OIL_SENSOR })
+    .asDevice(&DeviceConfig::create(OIL_SENSOR)
+        .withName("Oil tank")
+        .withManufacturer("Arduino")
+        .withModel("Pro Mini")
+        .withArea("Basement")
+        .withParent(gatewayDevice))
+    .withUnitMeasure("%")
+    .withSensorStateClass(MEASUREMENT)
+    .withIcon("mdi:hydraulic-oil-level")
+    .withValueTemplate("{{ 100 - ((value_json.sensor.value-12)|float*100/120)|round(2) }}")
+    .addSecondary(
+        Builder<Sensor>(new Sensor{ "Depth", OIL_SENSOR })
+        .withDeviceClass("distance")
+        .withUnitMeasure("cm")
+        .withSensorStateClass(MEASUREMENT)
+        .withValueTemplate("{{ value_json.sensor.value }}")
+        .build()
+    )
+    .addPreconfigured(batterySensors<Sensor>(OIL_SENSOR, BATTERY_PERCENTAGE_TEMPLATE(4, 2.4)))
+    .build();
+
+auto presenceTracker = Builder<BinarySensor>(PRESENCE_SENSOR)
+    .asDevice(&DeviceConfig::create(PRESENCE_SENSOR)
+        .withName("Kid presence")
+        .withManufacturer("Atmel")
+        .withModel("AtTiny85")
+        .withParent(gatewayDevice))
+    .withValueTemplate("{{ value_json.sensor.state }}")
+    .addPreconfigured(batterySensors<BinarySensor>(PRESENCE_SENSOR, BATTERY_PERCENTAGE_TEMPLATE(2.7, 0.6)))
+    .withOffDelaySeconds(5*60)
+    .withDeviceClass("presence")
+    .build();
+
+Command* commands[] = {
+    HaESP::restartButton()
+    .asDevice(gatewayDevice)
+    .addPreconfigured(HaESP::heapStats)
+    .addPreconfigured(HaESP::restartInfo)
+    .addPreconfigured(HaESP::wifiInfo)
+    .build(),
+#if ENABLE_DOORBELL
+    Builder<Button>(new Button{"Front door", "doorbell_front",
+        [](const char* msg) {
+            if (strcmp("PRESS", msg) == 0) doorbell.ring("00000000110100101000100");
+        }
+    })
+    .asDevice(
+        &DeviceConfig::create("doorbell")
+        .withName("Doorbell")
+        .withManufacturer("Thomson")
+        .withModel("Kinetic Halo")
+        .withParent(gatewayDevice)
+        )
+    .build(),
+#endif
+    new EasyHomeSwitch{'A', array<uint32_t, 4>{ 4483136, 4626800, 4661552, 4819632 }, array<uint32_t, 4>{ 4326544, 4537104, 4767520, 4972704 }, "KabelBox", "Basement"},
+    new EasyHomeSwitch{'B', array<uint32_t, 4>{ 4483140, 4626804, 4661556, 4819636 }, array<uint32_t, 4>{ 4326548, 4537108, 4767524, 4972708 }, "Router ext", "Dining room"},
+    new PollinSwitch{"00001", 1},
+    new PollinSwitch{"00001", 2, "Fire Tv", "Living room"},
+    new PollinSwitch{"00001", 3, "Diningroom player", "Dining room"},
+    new PollinSwitch{"00001", 4},
+    new PollinSwitch{"00011", 4, "homebox"},
+    new PollinSwitch{"11111", 4, "Train", "Playroom"}
+};

include/huzzah.h

@@ -0,0 +1,122 @@
+#include <TaskScheduler.h>
+
+#define MQTT_HOST IPAddress(192, 168, 5, 11)
+#define MQTT_PORT 1883
+
+using namespace std;
+
+Scheduler ts;
+
+#include "devices.h"
+#include "mqtt.h"
+#include "ota.h"
+#include "wifi.h"
+#include "webserver.h"
+
+#define RAW_TOPIC	MAIN_DEVICE_ID "/raw"
+
+namespace Board {
+
+	Task tReadCommand(TASK_IMMEDIATE, TASK_FOREVER, [](){
+		if (serialReader.readLine(Serial) > 0) {
+			char* cmd = serialReader.getBuffer();
+			if (strcmp("reset", cmd) == 0) {
+				Serial.println("resetting...");
+				ESP.restart();
+				Serial.println("resetting failed");
+			}
+			runJsonCommand(cmd);
+		}
+	}, &ts);
+
+	void turnLed(uint8_t led, bool on = true) {
+		on ? digitalWrite(led, LOW) : digitalWrite(led, HIGH);
+	}
+
+	void setup() {
+		// Serial.begin(9600, SERIAL_8N1, SERIAL_TX_ONLY);
+
+		pinMode(RED_LED, OUTPUT);
+		pinMode(BLUE_LED, OUTPUT);
+		turnLed(RED_LED, false);
+		turnLed(BLUE_LED);
+
+		WebServer::setup();
+		Mqtt::setup(&ts,
+			[] {turnLed(BLUE_LED, false);},
+			[] {turnLed(BLUE_LED);}
+		);
+		Wifi::setup(ts,
+			[] {
+				Ota::tLoop.enable();
+				Mqtt::tReConnect.enable();
+				WebServer::start();
+			},
+			[] {
+				Ota::tLoop.disable();
+				Mqtt::tReConnect.disable();
+				WebServer::stop();
+			}
+		);
+		Ota::setup(
+			[] {
+				Mqtt::publishCleanupConfig();
+				delay(2000);
+				Mqtt::disconnect();
+	            WebServer::stop();
+			});
+
+		tReadCommand.enable();
+	}
+
+	void loop() {
+		ts.execute();
+	}
+
+	void parseSwitches(JsonDocument& jsonDoc) {
+		JsonObjectConst rcSwitch = jsonDoc["rcSwitch"];
+		switch (static_cast<uint16_t>(rcSwitch["protocol"])) {
+		case 1: {
+			string id = Protocol_1::buildId(static_cast<const char*>(rcSwitch["group"]), static_cast<int>(rcSwitch["channel"]));
+			Ha::Switch* el = p1Switches[id];
+			if (el) el->updateState(static_cast<bool>(rcSwitch["state"]));
+			break;
+		}
+		case 2:
+			break;
+		default: {
+			uint32_t value = rcSwitch["value"];
+			auto range = onSwitches.equal_range(value);
+			for_each(range.first, range.second, [](mapswitches::value_type& x){
+				x.second->updateState(true);
+			});
+			range = offSwitches.equal_range(value);
+			for_each(range.first, range.second, [](mapswitches::value_type& x){
+				x.second->updateState(false);
+			});
+		}
+		}
+	}
+
+	void parseSensors(JsonDocument& jsonDoc, char* message) {
+		JsonObjectConst json = jsonDoc["sensor"];
+		string id = to_string((uint16_t)json["id"]);
+		auto sensor = GenericSensor::mapSensors[id];
+		if (sensor) sensor->updateState(message);
+	}
+
+	void publishResponse(JsonDocument& jsonDoc) {
+        char message[255];
+        serializeJson(jsonDoc, message);
+		Mqtt::publish(RAW_TOPIC, message);
+		if (jsonDoc.containsKey("rcSwitch")) parseSwitches(jsonDoc);
+		if (jsonDoc.containsKey("sensor")) parseSensors(jsonDoc, message);
+	}
+
+	void handleJsonError(JsonDocument& jsonError) {
+        char message[255];
+        serializeJson(jsonError, message);
+		Mqtt::publish(RAW_TOPIC, message);
+	}
+}
+// {"rcSwitch":{"protocol":1,"state":false,"group":"11111","channel":4}}

include/output.h

@@ -0,0 +1,70 @@
+static const char* bin2tristate(const char* bin);
+static char * dec2binWzerofill(unsigned long Dec, unsigned int bitLength);
+
+void output(unsigned long decimal, unsigned int length, unsigned int delay, unsigned int* raw, unsigned int protocol) {
+
+  const char* b = dec2binWzerofill(decimal, length);
+  Serial.print("Decimal: ");
+  Serial.print(decimal);
+  Serial.print(" (");
+  Serial.print( length );
+  Serial.print("Bit) Binary: ");
+  Serial.print( b );
+  Serial.print(" Tri-State: ");
+  Serial.print( bin2tristate( b) );
+  Serial.print(" PulseLength: ");
+  Serial.print(delay);
+  Serial.print(" microseconds");
+  Serial.print(" Protocol: ");
+  Serial.println(protocol);
+  
+  Serial.print("Raw data: ");
+  for (unsigned int i=0; i<= length*2; i++) {
+    Serial.print(raw[i]);
+    Serial.print(",");
+  }
+  Serial.println();
+  Serial.println();
+}
+
+static const char* bin2tristate(const char* bin) {
+  static char returnValue[50];
+  int pos = 0;
+  int pos2 = 0;
+  while (bin[pos]!='\0' && bin[pos+1]!='\0') {
+    if (bin[pos]=='0' && bin[pos+1]=='0') {
+      returnValue[pos2] = '0';
+    } else if (bin[pos]=='1' && bin[pos+1]=='1') {
+      returnValue[pos2] = '1';
+    } else if (bin[pos]=='0' && bin[pos+1]=='1') {
+      returnValue[pos2] = 'F';
+    } else {
+      return "not applicable";
+    }
+    pos = pos+2;
+    pos2++;
+  }
+  returnValue[pos2] = '\0';
+  return returnValue;
+}
+
+static char * dec2binWzerofill(unsigned long Dec, unsigned int bitLength) {
+  static char bin[64]; 
+  unsigned int i=0;
+
+  while (Dec > 0) {
+    bin[32+i++] = ((Dec & 1) > 0) ? '1' : '0';
+    Dec = Dec >> 1;
+  }
+
+  for (unsigned int j = 0; j< bitLength; j++) {
+    if (j >= bitLength - i) {
+      bin[j] = bin[ 31 + i - (j - (bitLength - i)) ];
+    } else {
+      bin[j] = '0';
+    }
+  }
+  bin[bitLength] = '\0';
+  
+  return bin;
+}

include/pins.h

@@ -0,0 +1,12 @@
+#pragma once
+
+#if defined(ESP8266)
+#define SEND_PIN 14
+#define RECEIVE_PIN 12
+#define RED_LED LED_BUILTIN
+#define BLUE_LED 2
+#else
+#define RESET_PIN 10
+#define SEND_PIN 11
+#define RECEIVE_PIN 2
+#endif

include/pro-mini.h

@@ -0,0 +1,32 @@
+#include "output.h"
+
+namespace Board {
+	
+	void setup() {
+		digitalWrite(RESET_PIN, HIGH);
+		pinMode(RESET_PIN, OUTPUT);
+	}
+
+	void readCommand() {
+		if (serialReader.readLine(Serial) > 0) {
+			char* cmd = serialReader.getBuffer();
+			if (strcmp("reset", cmd) == 0) {
+				Serial.println("resetting...");
+				delay(1200);
+				digitalWrite(RESET_PIN, LOW);
+				Serial.println("resetting failed");
+			}
+			runJsonCommand(cmd);
+		}
+	}
+
+	void loop() {
+		readCommand();
+	}
+
+	void publishResponse(JsonDocument& jsonDoc) {
+	}
+
+	void handleJsonError(JsonDocument& jsonError) {
+	}
+}

include/rc_devices.h

@@ -0,0 +1,95 @@
+#pragma once
+
+#define MAIN_DEVICE_ID "rc-gateway"
+#define BATTERY_PERCENTAGE_TEMPLATE(min, diff) "{% if value_json.sensor.diagnostic.voltage|is_number %}\
+ {{ ((value_json.sensor.diagnostic.voltage|float-" #min ")|round(2)*100/" #diff ")|int }}\
+ {% endif %}"
+
+#include "esp.h"
+#include "ha.h"
+
+using namespace Ha;
+
+typedef unordered_multimap<uint32_t, Ha::Switch*> mapswitches;
+
+mapswitches onSwitches;
+mapswitches offSwitches;
+unordered_map<string, Ha::Switch*> p1Switches;
+
+auto gatewayDevice = &DeviceConfig::create(MAIN_DEVICE_ID).withName("RC Gateway").withManufacturer("Adafruit").withModel("Huzzah Esp8266");
+
+struct PollinSwitch : Switch {
+    constexpr static const char* man = "Pollin";
+    const char* group;
+    uint8_t channel;
+
+    PollinSwitch(const char* group, const uint8_t channel, const char* name = nullptr, const char* area = nullptr)
+        : Switch(nullptr, [group, channel]{
+                // copy id from string into a new pointer, to avoid memory leaks
+                return (new string{Protocol_1::buildId(group, channel)})->c_str();
+            }()), group(group), channel(channel) {          // cppcheck-suppress [selfInitialization]
+        if (!name) name = (new string{string(man).append(" ").append(id)})->c_str();
+        entityId = [this]() {
+            auto eId = string{man};
+            transform(eId.begin(), eId.end(), eId.begin(), ::tolower);
+            return (new string{eId.append("_").append(id)})->c_str();
+        }();
+        mainDevice = &DeviceConfig::create(id).withName(name).withManufacturer(man).withArea(area).withParent(gatewayDevice);
+        withStateTopic();
+        deviceClass = "outlet";
+        p1Switches.insert({ string(id), this });
+    }
+
+    void onCommand(const char* msg) override {
+        strcmp("ON", msg) == 0 ? mySwitch.switchOn(group, channel) : mySwitch.switchOff(group, channel);
+        publisher(State::topic, msg);
+    }
+
+};
+
+struct EasyHomeSwitch : Switch {
+    constexpr static const array<uint32_t, 4> onAll  = { 4326554, 4537114, 4767530, 4972714 };
+    constexpr static const array<uint32_t, 4> offAll = { 4483146, 4626810, 4661562, 4819642 };
+    array<uint32_t, 4> onButton;
+    array<uint32_t, 4> offButton;
+
+    EasyHomeSwitch(const char remotePosition, array<uint32_t, 4> on, array<uint32_t, 4> off, const char* name = nullptr, const char* area = nullptr)
+        : Switch(nullptr, [remotePosition] {
+            auto uId = new string("easy_home_");
+            (*uId) += tolower(remotePosition);
+            return uId->c_str();
+        }()), onButton(on), offButton(off) {
+        if (!name) {
+            auto n = new string("Easy Home ");
+            (*n) += remotePosition;
+            name = n->c_str();
+        }
+        entityId = id;
+        mainDevice = &DeviceConfig::create(id).withName(name).withManufacturer("Intertek").withModel("Easy Home").withArea(area).withParent(gatewayDevice);
+        withStateTopic();
+        deviceClass = "outlet";
+        for (int i = 0; i < 4; i++) {
+            onSwitches.insert({ onAll[i], this });
+            onSwitches.insert({ onButton[i], this });
+            offSwitches.insert({ offAll[i], this });
+            offSwitches.insert({ offButton[i], this });
+        }
+    }
+
+    void onCommand(const char* msg) override {
+        mySwitch.setProtocol(4);
+        strcmp("ON", msg) == 0 ? mySwitch.send(onButton[0], 24) : mySwitch.send(offButton[0], 24);
+        publisher(State::topic, msg);
+    }
+};
+
+template <class T>
+auto batterySensors(const char* id, const char* batterySensorTemplate) {
+    return [id, batterySensorTemplate](Builder<T>& builder) -> Builder<T>& {
+        builder
+            .addDiagnostic(new VoltageSensor{id, "Battery voltage", "{{ value_json.sensor.diagnostic.voltage }}"})
+            .addDiagnostic(new BatterySensor{id, "Battery level", batterySensorTemplate})
+            .build();
+        return builder;
+    };
+}