Note V1 and V2

The First version of this tutorial was made with a Sonoff Basic R2, the second version was made with a Sonoff Basic R3.

Objectives:

At a lower cost (within €10) + the price of heating (€16), I wanted to domotiser the heating of the bathroom to:

• Be able to trigger (or stop) heating via Jeedom (and therefore controlled by Google Home, Alexa, Touchscreen, Phone …)
• Be able to trigger (or stop) heating from the button on the Sonoff
• Automatically stop heating to a certain temperature and warn Jeedom to trigger information
• Automatically stop heating after a certain period of time and warn Jeedom to trigger information
• Try as much as possible to make the heating stand-alone (whether it works even without wifi or jeedom)

Necessary equipment:

• A heater that starts when power is turned on, I ordered this one (15.99€)

• A Sonoff Basic R3,
• A Temperature/Humidity Probe, I used an AM2301 in stock but you can use a DTH 11 or 12 or 22 or an AM2301 or a SI7021.
• What Flash the Sonoff and install EspEasy
• Jeedom/plugin ESPEasy

Implementation

Step 1: Flashing

Flashing the Sonoff, for that, there are hundreds of tutorials, I'm not going to do one more for that. The only detail to report is that the ESP_Easy_mega-20200222_normal_ESP8285_1M.bin file must be used during Flashing because the Sonoff module used is equipped with an ESP8285.

To help you, you can look This tutorial.

Step 2: Connecting the Sonoff to Wi-Fi

Connect the Sonoff to the local network and then integrate it into Jeedom

Step 3: Weld the temperature probe

• Borne Ground (black) on Ground
• Vc terminal (red) on Vc
• Terminal Data (yellow) on Tx (to use GPIO1-D10) or Rx to use GPIO3-D9)

Step 4: Disable Serial Port

To do this, disable the serial port in the ESPEasy config, this allows you to recover the Rx and Tx terminals

Step 5: Configure ESPEasy devices

Step 6: Configure rules

For this step, you can set your temperature values (25°c in example) or timer (1h=3600s in example)

the Probe#Temperature do
if [Sonde#Temperature]>25 do
if [juice#juice]=1
gpio,13.1
gpio,12,0
timerSet,1,0
endif
endif
endon

on button#button do
if [button#button]=1
gpio,12.1
timerSet,1,3600
else
gpio,12,0
timerSet,1,0
endif
endon

we juice#jus do
if [juice#juice]=1
gpio,13,0
timerSet,1,3600
else
gpio,13.1
timerSet,1,0
endif
endon

on System#Boot do
gpio,12,0
gpio,13.1
endon

On Rules#Timer=1 do
gpio,13.1
gpio,12,0
endon

Step 7: Configure Jeedom

In Jeedom, in the ESPEasy plugin, you can retrieve the temperature information, the status of your relay and add an on/off command to control the relay.

Operation completed

Use this discussion for any request for precision, support or assistance:

https://community.jeedom.com/t/tuto-domotiser-le-chauffage-de-sa-salle-de-bains/18648

Interesting links:

• Seb's Tuto on https://domotic-hobby.com/tutotial-1-thermostat-for-small-radiator