Sonoff RF Bridge with ESPHOME?

ESPHome
121

Hi exxamalte, I can confirm that the codes are not even sent.

I want to use my Sonoff RF Bridge (R2 v1.0) with ESPHome to replace a breadboard setup with OpenMQTTGateway. So I can use that setup to verify if any codes are sent by ESPHome and it’s not the case.

I’ve been looking into the code and I see the problem. There is a bug in function send_code which does not correctly transmit all data to the efm8bb1 MCU. If you replace the function with following, it works.

void RFBridgeComponent::send_code(RFBridgeData data) {
  ESP_LOGD(TAG, "Sending code: sync=0x%04X low=0x%04X high=0x%04X code=0x%06X", data.sync, data.low, data.high,
           data.code);
  this->write(RF_CODE_START);
  this->write(RF_CODE_RFOUT);
  this->write((data.sync >> 8) & 0xFF);
  this->write(data.sync & 0xFF);
  this->write((data.low >> 8) & 0xFF);
  this->write(data.low & 0xFF);
  this->write((data.high >> 8) & 0xFF);
  this->write(data.high & 0xFF);
  this->write((data.code >> 16) & 0xFF);
  this->write((data.code >> 8) & 0xFF);
  this->write(data.code & 0xFF);
  this->write(RF_CODE_STOP);
  this->flush();
}

And in the log, you can actually see that the efm8bb1 MCU actually acknowledges a correct action, which wasn’t the case before:

[18:26:06][D][rf_bridge:079]: Sending code: sync=0x125C low=0x0092 high=0x01E0 code=0xFFC554
[18:26:06][D][rf_bridge:024]: Action OK

However, for some reason, my transmit range is super low, about 3-4m line of sight…
Can you or someone else try this as well and see if their range is the same?

I created an issue on Github.

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