AQC-Automation

Tasmota automation to control an underfloor heating system.

- Step one, do a hardware hack to get dry contact relay on sonoff th16 .

- Step two, Sonoff TH16 flashing with Tasmota.

• 1- Go to https://tasmota.github.io/docs/devices/Sonoff-TH/ and read.

• 2- Get a FTDI Module and make wire connections like this

• 

• 3.3v <-------> 3.3v

• GND <--------> GND

• TX <---------> RX

• RX <---------> TX

• 3- Go to https://github.com/tasmota/tasmotizer and download Tasmotizer run it and he will get the firmware for you and happy hack.

• In case you have doubts don't forget to Googling, this is a very documented subject on the internet and that's why I won't go into detail. After Tasmota is connected to your wifi and configured as "Sonoff TH" let's move on to the next step.

- Step three, go to the tasmota console and create the following RULES.

- ATENTION: the text (aqc_05566D) must be changed in all rules according to your "topic".
- Check tasmota console to see your topic name.

• Rule 1 create a thermo switch automation with a 24°C setpoint, this serves to keep the temperature inside water tank from falling below 24°C.

Rule1 ON DS18B20#Temperature<24 DO Power1 0 ENDON ON DS18B20#Temperature>24.5 DO Power1 1 ENDON

• Save Rule1

Rule1 5

• Rule 2 turn on/off thermo switch automation and send the feedback through mqtt.
• Actions:
• 1click on sonoff button = turn ON Rule1 automation and send state to mqtt
• 2click on sonoff button = turn OFF Rule1 automation and send state to mqtt
• Long Press on sonoff button = toggle Rule1 automation "manually on sonoff th16 button".

Rule2 ON Button1#State=2 DO BACKLOG Rule1 1; Publish stat/aqc_05566D/RULE1 ON ENDON ON Button1#State=11 DO BACKLOG Rule1 0; Power1 0; Publish stat/aqc_05566D/RULE1 OFF ENDON ON Button1#State=3 DO BACKLOG Rule1 0; Power1 toggle ENDON

• Save Rule2

Rule2 1

• Rule 3 mqtt feedback for Home Assistant Integration

Rule3 ON EVENT#aqcON DO BACKLOG Rule1 1; Publish stat/aqc_05566D/RULE1 ON ENDON ON EVENT#aqcOFF DO BACKLOG Rule1 0; Power1 0; Publish stat/aqc_05566D/RULE1 OFF ENDON

• Save Rule3

Rule3 1

Ok. Now it's time to do Home Assistant integration go to configuration.yaml.

- ATENTION: the text (aqc_05566D) must be changed on configuration.yaml according to your "topic".
- Check tasmota console to check your topic name.

switch:
  - platform: mqtt
    #unique_id: aqc_control_switch
    name: "AQC Control Switch"
    state_topic: "stat/aqc_05566D/RULE1"
    command_topic: "cmnd/aqc_05566D/EVENT"
    availability_topic: "tele/aqc_05566D/LWT"
    payload_available: "Online"
    payload_not_available: "Offline"
    payload_on: "aqcON"
    payload_off: "aqcOFF"
    state_on: "ON"
    state_off: "OFF"
    optimistic: false
    qos: 0
    retain: true

My diagram

Help & Acknowledgements

If you need help or have any questions you can find me here https://forum.cpha.pt/t/iotizar-termoacumolador-do-aqc/7731/7

Special thanks to the Home Assistant Portugal guys @MadDoctor and @Luis Andrade.