Remote Receiver to MQTT

ESPHome
,
1

Hi,

the goal I try to achieve is to send all raw data received on the IR receiver (remote control) to an mqtt broker. This is how far I got:

esphome:
  name: simple01
  platform: ESP32
  board: esp32dev

# Enable logging
logger:

# Enable Home Assistant API
api:

ota:
  password: "fc3bea7671d0b9f89ef9b9612db66e5b"

wifi:
  ssid: "xxx"
  password: "xxx"

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Board01 Fallback Hotspot"
    password: "xxx"

mqtt:
  broker: 192.168.178.67
  birth_message:
    topic: iot/sensor01
    payload: "going online"
  will_message:
    topic: iot/sensor01
    payload: "going offline"
  id: mymqtt

remote_receiver:
  id: myreceiver
  pin: GPIO15
  dump: all
  on_raw:
    then:
      - mqtt.publish:
          topic: iot/sensor01
          payload: !lambda return x;
captive_portal:

The mqtt.publish_json part is not working, getting error:

config/simple01.yaml:42:14: error: could not convert 'x' from 'std::vector<int>' to 'std::__cxx11::string {aka std::__cxx11::basic_string<char>}'

Disclaimer: Beginner, so please be forgiving :slight_smile:

2

I had the opposite problem. I needed to convert a string to a vector. The solution was provided by the kind and knowledgeable people on the ESPHome discord channel:

        - uart.write:
            id: projector
            data: !lambda |-
              std::string str = command;
              std::vector<uint8_t> vec(str.begin(), str.end());
              return vec;

I’m just following my nose here and trying to reverse the solution. Try this:

          payload: !lambda |-
              std::vector<uint8_t> vec = x;
              std::string str(vec.begin(), vec.end());
              return str;

If it does not work I suggest you pop over to discord and ask. https://discord.gg/UX45SJuh

3

Hi,

thanks but that does not seem to work, not sure if I found the best solution but in the end this is what is working for me:

on_raw:
    then:
      - mqtt.publish:
          topic: iot/sensor01
          payload: !lambda |-
            reverse(x.begin(), x.end());
            int decimal = 1;
            int total = 0;
            for (auto& it : x)
            {
              total += it * decimal;
              decimal *= 10;
            }
            return esphome::to_string(total);
1 Like
4

Hello, how i do it using on_aeha, the problem is that when i add on_aeha, on_raw… etc… i do not see the mesages in the log anymore, i would like to use the code publishing on text_sensor for address and another text sensor for data, so i can use immediately the code to test and avoid the modification in YAML.
Thanks