See Sonoff-MQTT-OTA-Arduino for the Arduino IDE version.
This software is End of Life and new features will be introduced in the NextGen version only available on https://github.com/arendst/Sonoff-Tasmota
Install the ESP8266 development environment from esp8266-dev.
Copy the sonoff code files as follows:
- Create directory
esp8266-dev/workand copy directorysonoffand fileespupload.phpinto it - Replace file
Makefile.commonin directoryesp8266-dev
Install php and a local web server (ie apache) for OTA and copy directory api in webroot.
Update sonoff/user/user_config.h with your specific Wifi and MQTT parameters.
Compile source with make and flash once to sonoff using cable connection as shown in Peter Scargill's blog with make flash.
Do not connect AC power during the flash cable connection.
Compile and upload OTA images to your web server with make clean; make IMAGE=1; make register; make clean; make IMAGE=2; make register.
Note: this software is not compatible with Pete's implementation.
The button on sonoff provides the following features:
- a short press toggles the relay. This will blink the LED twice and sends a MQTT status message like
stat/sonoff/POWER on - three short presses start Wifi smartconfig which allows for SSID and Password configuration using an Android mobile phone with the ESP8266 SmartConfig app. The green LED will blink during the smartconfig period for 100 seconds. The MQTT server still needs to be configured using the
user_config.hfile - four short presses start OTA download of firmware. The green LED is lit during the update
- pressing the button for over four seconds resets settings to defaults as defined in
user_config.hand reboots sonoff
Sonoff responds to the following MQTT commands:
- the relay can be controlled by
cmnd/sonoff/power on,cmns/sonoff/power offorcmnd/sonoff/power toggle. The LED will blink twice and sends a MQTT status message likestat/sonoff/POWER on. The same function can be initiated withcmnd/sonoff/light on - the MQTT topic can be changed with
cmnd/sonoff/topic sonoff1which reboots sonoff and makes it available for MQTT commands likecmnd/sonoff1/power on - the OTA firmware location can be made known to sonoff by
cmnd/sonoff/otaurl http://sidnas2:80/api/sonoff/user1.binwhere sidnas2 is your webserver hosting the firmware. Reset to default withcmnd/sonoff/otaurl 1 - upgrade OTA firmware by
cmnd/sonoff/upgrade 1 - show status information by
cmnd/sonoff/status 1
Most MQTT commands will result in a status feedback like stat/sonoff/POWER On.
The firmware supports both a serial and a MQTT Man Machine interface. The serial interface is set to 115200 bps. The MQTT commands are constructed as cmnd/sonoff/<command>.
The following commands are recognised by both topic and grouptopic:
| Command | Description |
|---|---|
| power | Show current power state as On or Off |
| power on | Turn power On |
| power off | Turn power Off |
| power toggle | Toggle power |
| power 1 | Turn power On |
| power 0 | Turn power Off |
| power 2 | Toggle power |
| light | Show current power state as On or Off |
| light on | Turn power On |
| light off | Turn power Off |
| light toggle | Toggle power |
| light 1 | Turn power On |
| light 0 | Turn power Off |
| light 2 | Toggle power |
| status | Show abbreviated status information |
| status 1 | Show all status information |
| status 2 | Show version information |
| grouptopic | Show current MQTT group topic |
| grouptopic 1 | Reset MQTT group topic to user_config.h value and restart |
| grouptopic your-grouptopic | Set MQTT group topic and restart |
| timezone | Show current timezone |
| timezone -12 .. 12 | Set timezone |
The following commands are recognised by topic only:
| Command | Description |
|---|---|
| restart 1 | Restart sonoff |
| reset 1 | Reset sonoff parameters to user_config.h values and restart |
| ssid | Show current Wifi SSId |
| ssid 1 | Reset Wifi SSId to user_config.h value and restart |
| ssid your-ssid | Set Wifi SSId and restart |
| password | Show current Wifi password |
| password 1 | Reset Wifi password to user_config.h value and restart |
| password your-password | Set Wifi password and restart |
| host | Show current MQTT host |
| host 1 | Reset MQTT host to user_config.h value and restart |
| host your-host | Set MQTT host and restart |
| topic | Show current MQTT topic |
| topic 1 | Reset MQTT topic to user_config.h value and restart |
| topic your-topic | Set MQTT topic and restart |
| smartconfig 1 | Start smart config |
| otaurl | Show current otaurl |
| otaurl 1 | Reset otaurl to user_config.h value |
| otaurl your-otaurl | Set otaurl |
| upgrade 1 | Download ota firmware from your web server and restart |
If the same topic has been defined to more than one sonoff an individual sonoff can still be addressed by the fall back topic MQTT_CLIENT_ID as defined in user_config.h. The fall back topic will be DVES_<last six characters of MAC address>.
- To aid in finding the IP address of sonoff the network name will be
ESP-<last six characters of MAC address>-<MQTT topic>. So the default name isESP-123456-sonoff - The initial firmware from
api/sonoff/user1.bincan be flashed using the SDK 1.4 provided bin files with the following esptool.py command line:esptool.py --port /dev/ttyUSB0 write_flash -fs 8m 0x00000 boot_v1.4\(b1\).bin 0x01000 user1.bin 0xFC000 esp_init_data_default.bin 0xFE000 blank.bin - Use the group topic to address several sonoffs with one (restricted) MQTT command