Making it work with DOIT ESP32 DEVKIT V1

[hycday]

Hi,

I got this DOIT ESP32 DEVKIT V1 board (https://cdn.hackaday.io/files/869123718443008/ESP32-Devkit-Pinout_19.pdf), and a pair of receiver/transmitter at hand. I am trying to capture/decode 433mhz signals. I am using the very simple example below, and for the wiring, I have VCC of receiver to VIN of ESP32, GND to GND and DATA of receiver to D27 of ESP32.

    #include <RCSwitch.h>
    RCSwitch mySwitch = RCSwitch();

    void setup() {
      Serial.begin(115200);
      Serial.print("Ready to receive.");  
      mySwitch.enableReceive(27); 
    }

    void loop() {
      if (mySwitch.available()) {

        Serial.print("Received ");
        Serial.print( mySwitch.getReceivedValue() );
        Serial.print(" / ");
        Serial.print( mySwitch.getReceivedBitlength() );
        Serial.print("bit ");
        Serial.print("Protocol: ");
        Serial.println( mySwitch.getReceivedProtocol() );

        mySwitch.resetAvailable();
      }
    }

After upload, I open the Serial monitor and...... nothing happens. I dont even see the Ready to receive.". Not sure what I did wrong to be honest. I know the ESP32 works and I trying different receivers, with no result. I think it may be because of the enableReceive value, but I am struggling to understand what to put here... I tried 0 1 2 3 etc with no result.

Any help is welcome !

[roblatour]

did you make any progress on this? I am having the same problem.

[hycday]

I actually did right now by doing a very silly thing : i soldered antenna to the transmitter and to the receiver and i now have some signals....

[roblatour]

ok thanks I'll try that; but the problem I am getting is that the MySwitch.available() is returning a value false

[hycday]

yes i had the same, until I wired the antenna on the receiver, and then it worked.

I used mySwitch.enableReceive(27); when wiring the DATA to pin 27 (the 9th one, on the left column, counting from bottom, on this pinout layout : https://cdn.hackaday.io/files/869123718443008/ESP32-Devkit-Pinout_19.pdf)