Endless loop controlling fan from both IR controller and Home Assistant

ESPHome
1

This is the current situation with a template fan created on ESPhome.

I want to control the from both the Home Assistant UI and the IR remote controller. In trying to achieve this I now got an endless loop:

Pulse the fan direction button on the IR controller THEN:

  1. The physical fan efectively changes direction (this is OK)
  2. The fan direction on HA is updated/synchronised:
remote_receiver:
 pin:
   number: GPIO15 #D15
   inverted: true
 dump: nec  ##el log mostrará sólo los códigos de NEC que aparezcan
 on_nec: 
      - if:
          condition:
           - lambda: return (x.command==0xF807); # get IR code
          then: 
           - fan.turn_on:
               id: ventilador_techo_dormitorio
               direction: !lambda |-
                 if (id(ventilador_techo_dormitorio).direction == esphome::fan::FanDirection::FORWARD) {
                   return esphome::fan::FanDirection::REVERSE;
                 } else {
                   return esphome::fan::FanDirection::FORWARD;
                 }
           - switch.turn_on: switch_ventilador_techo_dormitorio

This code turn on a switch that stores the on/off state of the fan and update the direction of the fan on Home Assistant BUT

When the direction is changed on Home Assistant…

fan:
  - platform: template
    name: "Ventilador techo dormitorio"
    id: ventilador_techo_dormitorio
    speed_count: 6
    has_direction: true
    restore_mode: ALWAYS_OFF
[....]
    on_direction_set:
      - remote_transmitter.transmit_nec:
          address: 0x7F80
          command: 0xF807

… the fan sends the IR code (this is necessary to control the fan from HA) and efectiveley changes AGAIN the direction…

And because of the IR code sent I have an endless loop.

Any idea on how to break this loop?

2

You have few options. Hardware solution would be to power off the receiver when transmitter is sending.
SW solution is to make a flag (template switch or global variable boolean).
On transmitter code set the flag >> send the signal >> unset the flag.
On receiver code put a condition to test if the flag is set.

3

That flag is the option I am trying right now (a template switch). I’m still testing.

Thank you!!

4

Add a delay before you unset the flag.

5

Sure. It is a switch that turns off after 500 ms.

1 Like
6

It is working! :slight_smile:

7

Congratulations. :+1: