| Table of Contents |
|---|
Flashing
Connect RX -> TX | 3.3 -> 3.3 | TX -> RX | GND -> GND and connect TP16 to GND (as used in the TTL).
Press and hold the button while connecting to power.
This is an ESP 8285 in the iFan2.
Download and compile the Tasmota firmware:
git clone https://github.com/arendst/Tasmota.git
cd ./Tasmota/lib/
vi deployLibs.sh
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|---|
#!/bin/sh
rm -rf ~/Documents/Arduino/libraries/*
cp -R ./default/* ~/Documents/Arduino/libraries/.
cp -R ./lib_audio/* ~/Documents/Arduino/libraries/.
cp -R ./lib_basic/* ~/Documents/Arduino/libraries/.
cp -R ./lib_display/* ~/Documents/Arduino/libraries/.
cp -R ./lib_div/* ~/Documents/Arduino/libraries/.
cp -R ./lib_i2c/* ~/Documents/Arduino/libraries/.
cp -R ./lib_rf/* ~/Documents/Arduino/libraries/.
cp -R ./lib_ssl/* ~/Documents/Arduino/libraries/.
cp -R ./lib_ssl/* ~/Documents/Arduino/libraries/. |
chmod +x deployLibs.sh
./deployLibs.sh
Open Arduino IDE
Open tasmota project
Set board to ESP8285 and other settings, see below:
With the iFan in flash mode, click Upload.
Tasmota Commands
| Cmd | Cmnd | Value | URL |
|---|---|---|---|
| Light Off | Power | 0 | http://xxx/cm?cmnd=Power 0 |
| Light On | Power | 1 | http://xxx/cm?cmnd=Power 1 |
| Fan Off | FanSpeed | 0 | http://xxx/cm?cmnd=FanSpeed 0 |
| Low Speed | FanSpeed | 1 | http://xxx/cm?cmnd=FanSpeed 1 |
| Med Speed | FanSpeed | 2 | http://xxx/cm?cmnd=FanSpeed 2 |
| High Speed | FanSpeed | 3 | http://xxx/cm?cmnd=FanSpeed 3 |
Integration with Homebridge
Configure MQTT
Using the mqttthing homebridge plugin, we configure our fan using the following:
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|---|
{
"accessory": "mqttthing",
"type": "fan",
"name": "fireplace-fan",
"url": "http://192.168.1.50:1883",
"username": "homebridge",
"password": "pass",
"topics": {
"getOn": {
"topic": "stat/fireplace-fan/RESULT",
"apply": "return JSON.parse(message).FanSpeed > 0 ? true : false;"
},
"setOn": {
"topic": "cmnd/fireplace-fan/FanSpeed",
"apply": "return message ? '' : '0';"
},
"getRotationSpeed": {
"topic": "stat/fireplace-fan/RESULT",
"apply": "return Math.round(JSON.parse(message).FanSpeed * 33.3);"
},
"setRotationSpeed": {
"topic": "cmnd/fireplace-fan/FanSpeed",
"apply": "return Math.round(message / 33.3);"
}
},
"confirmationPeriodms": 1000
},
|
Order of Operations when Setting Rotation Speed
If we add some console.log statments in our apply function, we see that setting the rotation speed makes 2 calls. The first to setRotationSpeed and then to setOn.
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|---|
setRotationSpeed - mesage=73
setOn - mesage=true |
After installing the iFan for use with my fireplace, I concluded that the fan level 1 was too low and decided to bypass it. This new configuration changes the fan such that it operates at 0% (off), 50%(fan level2) and 100%(fan level 3).
| Code Block |
|---|
{
"accessory": "mqttthing",
"type": "fan",
"name": "fireplace-fan",
"url": "http://192.168.1.50:1883",
"username": "homebridge",
"password": "pass",
"topics": {
"getOn": {
"topic": "stat/fireplace-fan/RESULT",
"apply": "return JSON.parse(message).FanSpeed > 0 ? true : false;"
},
"setOn": {
"topic": "cmnd/fireplace-fan/FanSpeed",
"apply": "return message ? '' : '0';"
},
"getRotationSpeed": {
"topic": "stat/fireplace-fan/RESULT",
"apply": "val=JSON.parse(message).FanSpeed; if(val==0)return '0'; if(val=='2') return '50'; if(val==3) return '100';"
},
"setRotationSpeed": {
"topic": "cmnd/fireplace-fan/FanSpeed",
"apply": "if(message >50) return 3; if(messag=e=0) return 0; return 2;"
}
},
"confirmationPeriodms": 1000
}, |
References
| Reference | URL |
|---|---|
| Flashing Tasmota | https://tasmota.github.io/docs/devices/Sonoff-iFan02/ |
| Tasmota Commands | https://tasmota.github.io/docs/Commands/ |
| Issue | https://github.com/arachnetech/homebridge-mqttthing/issues/78 |