ESP8266 + Radio + Relay Working Fine

[Newzwaver]

HI Everyone,

I noticed that I couldn't find a relay working with ESP8266MOD, I was messing with it over the last few days and figured out that the following sketch works. The big fix was in the sketch you use pin 0 for the relay and actually attach it to pin 3. This works great with WEMOS ESP8266.

'''
// Enable debug prints to serial monitor
#define MY_DEBUG
#define MY_NODE_ID 97 //esp8266relay
// Enable and select radio type attached
#define MY_RADIO_NRF24
//#define MY_RADIO_RFM69

// Enable repeater functionality for this node
#define MY_REPEATER_FEATURE

#include <MySensors.h>

#define RELAY_1 0 // Arduino Digital I/O pin number for first relay (second on pin+1 etc)
#define NUMBER_OF_RELAYS 1 // Total number of attached relays
#define RELAY_ON 1 // GPIO value to write to turn on attached relay
#define RELAY_OFF 0 // GPIO value to write to turn off attached relay

void before()
{
for (int sensor=1, pin=RELAY_1; sensor<=NUMBER_OF_RELAYS; sensor++, pin++) {
// Then set relay pins in output mode
pinMode(pin, OUTPUT);
// Set relay to last known state (using eeprom storage)
digitalWrite(pin, loadState(sensor)?RELAY_ON:RELAY_OFF);
}
}

void setup()
{

}

void presentation()
{
// Send the sketch version information to the gateway and Controller
sendSketchInfo("Relay", "1.0");

for (int sensor=1, pin=RELAY_1; sensor<=NUMBER_OF_RELAYS; sensor++, pin++) {
	// Register all sensors to gw (they will be created as child devices)
	present(sensor, S_BINARY);
}

}

void loop()
{

}

void receive(const MyMessage &message)
{
// We only expect one type of message from controller. But we better check anyway.
if (message.type==V_STATUS) {
// Change relay state
digitalWrite(message.sensor-1+RELAY_1, message.getBool()?RELAY_ON:RELAY_OFF);
// Store state in eeprom
saveState(message.sensor, message.getBool());
// Write some debug info
Serial.print("Incoming change for sensor:");
Serial.print(message.sensor);
Serial.print(", New status: ");
Serial.println(message.getBool());
}
}
""

[mfalkvidd]

@Newzwaver I think that makes sense. D3 on Wemos D1 Minis is GPIO0. I usually use the Dn notation, because I find it easier to understand.