arduino/rc-gateway
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switch to optiboot and add support for multiple commands

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This commit is contained in:
Nicu Hodos 2021-01-02 22:48:09 +01:00
parent 217a0b4bc6
commit 8b2cbecae3
3 changed files with 41 additions and 15 deletions
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9
gateway/README.md Normal file
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@ -0,0 +1,9 @@
# 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/

6
gateway/platformio.ini
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@ -8,12 +8,14 @@
; Please visit documentation for the other options and examples
; https://docs.platformio.org/page/projectconf.html
[env:pro16MHzatmega328]
[env:uno]
platform = atmelavr
board = pro16MHzatmega328
board = uno
board_build.mcu = atmega328p
framework = arduino
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

41
gateway/src/gateway.cpp
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@ -22,8 +22,9 @@ void readCommand();
void readDht(JsonDocument& jsonDoc);
void setup() {
digitalWrite(RESET_PIN, HIGH);
pinMode(LED_BUILTIN, OUTPUT);
pinMode(RESET_PIN, INPUT_PULLUP);
pinMode(RESET_PIN, OUTPUT);
mySwitch.enableReceive(digitalPinToInterrupt(RECEIVE_PIN));
mySwitch.enableTransmit(SEND_PIN);
@ -70,16 +71,12 @@ void readRcSwitch(JsonDocument& jsonDoc) {
}
}
void readCommand() {
if (Serial.available() > 0) {
String cmd = Serial.readStringUntil('\n');
if (cmd == "reset") {
pinMode(RESET_PIN, OUTPUT);
digitalWrite(RESET_PIN, LOW);
}
StaticJsonDocument<256> jsonDoc;
DeserializationError err = deserializeJson(jsonDoc, cmd);
if (err == DeserializationError::Ok) {
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"];
@ -95,14 +92,32 @@ void readCommand() {
} else {
mySwitch.setProtocol(protocol);
mySwitch.send(rcSwitch["value"]);
// Serial.println((const char*)rcSwitch["value"]);
}
} else {
Serial.println(err.c_str());
}
} 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);
}
if (cmd.endsWith(",")) {
cmd = cmd.substring(0, cmd.lastIndexOf(','));
}
cmd = "[" + cmd + "]";
// Serial.println(cmd);
runJsonCommand(cmd);
}
}
void readDht(JsonDocument& jsonDoc) {
unsigned long currentTime = millis();
if ((currentTime - lastReadTime) > readInterval) {