rc-gateway/gateway/src/gateway.cpp

152 lines
3.8 KiB
C++

#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::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::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);
}
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();
}
}