IoT Hottub Temperature Controlled Power Switch

Shopping list

1. Buy a TH16.
2. Buy a temperature sensor that fits TH16 and your needs. I use the Sonoff DS18B20 waterproof temperature sensor.
3. Buy a 3.3 volt USB to seriel adaptor

Documentation & inspiration pages

• I found a lot of inspiration in the pages https://www.redelijkheid.com/blog/2017/12/31/flashing-the-sonoff-th16-wireless-switch and https://tinkerman.cat/post/sonoff-th10-th16-sensors-displays-actuators
• Be aware of dokumentation for ESPeasy
• I flashed my TH16 Ver. 2.1 dated 2019-08-26 with the file ESP_Easy_mega_20211105_normal_ESP8285_1M.bin.
• https://espeasy.readthedocs.io/en/latest/Reference/URLs.html?highlight=csv is usefull for pulling data from the hacked TH16

This is my rules

on sensorTemp#temperature do

        // Store current sensor temperature in a dummy variable
    TaskValueSet,varTemp,Dummy,[sensorTemp#temperature]

        // If temperature is above 37 OR the toggleSwitch state is 1
        // then set dummy Switch1 state to 1
    if [varTemp#lastValue]>=37 or [toggleSwitch#state]=1
       TaskValueSet,Switch1,state,1
    else
       TaskValueSet,Switch1,state,0
    endif

        // Set the relay and red LED state to the same state as dummy Switch1 state
    gpio,12,0[Switch1#state]
endon

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