ESP8266 Community Forum

- Tue Dec 10, 2019 2:04 am #84876 Hey guys! I've been trying to get some fairy lights up and running off one of those small ESP8266 Relay boards from eBay. I Found some code and got set up on Gbridge.io and my Google home responds to my requests but still having trouble flicking the relay on/off.
here is the code I've been using
Can anyone help me modify this to flick a relay on GPIO 0?

Code: Select all/***************************************************
****************************************************/
#include <ESP8266WiFi.h>
#include "Adafruit_MQTT.h"
#include "Adafruit_MQTT_Client.h"
/************************* WiFi Access Point *********************************/
#define WLAN_SSID "Your SSID name"
#define WLAN_PASS "Your SSID Password"
/************************* Gbridge Setup *********************************/
#define AIO_SERVER "mqtt.gbridge.io"
#define AIO_SERVERPORT 8883 // use 8883 for SSL
#define AIO_USERNAME "your gBridge username"
#define AIO_KEY "your gBridge password"
char outputState = 0;
char lastState = 0;
/************ Global State (you don't need to change this!) ******************/
// Create an ESP8266 WiFiClient class to connect to the MQTT server.
WiFiClientSecure client;
// Setup the MQTT client class by passing in the WiFi client and MQTT server and login details.
Adafruit_MQTT_Client mqtt(&client, AIO_SERVER, AIO_SERVERPORT, AIO_USERNAME, AIO_KEY);
static const char *fingerprint PROGMEM = "9F B6 69 93 2B C3 E6 31 48 F7 BC 60 FB A8 79 FB DA FB 2A EA";
/****************************** Feeds ***************************************/
Adafruit_MQTT_Publish onoffset = Adafruit_MQTT_Publish(&mqtt, "gBridge/u0000/d1111/onoff/set"); //Replace by your feedname
Adafruit_MQTT_Subscribe onoffbutton = Adafruit_MQTT_Subscribe(&mqtt, "gBridge/u0000/d1111/onoff"); //Replace by your feedname
/*************************** Sketch Code ************************************/
// Bug workaround for Arduino 1.6.6, it seems to need a function declaration
// for some reason (only affects ESP8266, likely an arduino-builder bug).
void MQTT_connect();
void setup() {
Serial.begin(115200);
delay(10);
Serial.println(F("Controle de lampe - Google Home"));
pinMode(LED_BUILTIN, OUTPUT); // Initialize the LED_BUILTIN pin as an output
digitalWrite(LED_BUILTIN, HIGH);
pinMode(0, INPUT_PULLUP);
attachInterrupt(digitalPinToInterrupt(0), handleInterrupt, FALLING);
// Connect to WiFi access point.
Serial.println(); Serial.println();
Serial.print("Connecting to ");
Serial.println(WLAN_SSID);
WiFi.begin(WLAN_SSID, WLAN_PASS);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println();
Serial.println("WiFi connected");
Serial.println("IP address: "); Serial.println(WiFi.localIP());
client.setFingerprint(fingerprint);
// Setup MQTT subscription for onoff feed.
mqtt.subscribe(&onoffbutton);
}
uint32_t x=0;
void loop() {
// Ensure the connection to the MQTT server is alive (this will make the first
// connection and automatically reconnect when disconnected). See the MQTT_connect
// function definition further below.
MQTT_connect();
// this is our 'wait for incoming subscription packets' busy subloop
// try to spend your time here
Adafruit_MQTT_Subscribe *subscription;
while ((subscription = mqtt.readSubscription(3000))) {
if (subscription == &onoffbutton) {
Serial.print(F("Got: "));
Serial.println((char *)onoffbutton.lastread);
if (strcmp((char *)onoffbutton.lastread, "1") == 0) {
digitalWrite(LED_BUILTIN, LOW);
outputState = 1;
}
if (strcmp((char *)onoffbutton.lastread, "0") == 0) {
digitalWrite(LED_BUILTIN, HIGH);
outputState = 0;
}
}
}
// Now we can publish stuff!
if (outputState != lastState) {
lastState = outputState;
Serial.print(F("\nSending state val "));
Serial.print(outputState, BIN);
Serial.print("...");
if (! onoffset.publish(outputState)) {
Serial.println(F("Failed"));
} else {
Serial.println(F("OK!"));
}
}
// ping the server to keep the mqtt connection alive
// NOT required if you are publishing once every KEEPALIVE seconds
/*
if(! mqtt.ping()) {
mqtt.disconnect();
}
*/
}
ICACHE_RAM_ATTR void handleInterrupt() {
static unsigned long last_interrupt_time = 0;
unsigned long interrupt_time = millis();
if (interrupt_time - last_interrupt_time > 200)
{
if (outputState == 0) {
outputState = 1;
digitalWrite(LED_BUILTIN, LOW);
}
else {
outputState = 0;
digitalWrite(LED_BUILTIN, HIGH);
}
}
last_interrupt_time = interrupt_time;
}
// Function to connect and reconnect as necessary to the MQTT server.
// Should be called in the loop function and it will take care if connecting.
void MQTT_connect() {
int8_t ret;
// Stop if already connected.
if (mqtt.connected()) {
return;
}
Serial.print("Connecting to MQTT... ");
uint8_t retries = 3;
while ((ret = mqtt.connect()) != 0) { // connect will return 0 for connected
Serial.println(mqtt.connectErrorString(ret));
Serial.println("Retrying MQTT connection in 5 seconds...");
mqtt.disconnect();
delay(5000); // wait 5 seconds
retries--;
if (retries == 0) {
// basically die and wait for WDT to reset me
while (1);
}
}
Serial.println("MQTT Connected!");
}