Controlling a Sonoff relay (Tasmota) with Mycodo

[dino9848]

Greetings. This is my first post so bear with me, please. I have several Sonoff relays that I flashed with Tasmota and can control from their web interface. Since I have these already set up it would be very convenient for me to control the relays using Output Configuration: On/Off: MQTT Publish. I cannot figure out what to put where in the Mycodo configuration settings. There is a box labeled “IP” but I cannot click in it or change the text. I insert the IP address in the hostname box. I have figured out that the payload should be “Power1 1” or “Power1 0” for on and off as this is the command I can type in the console on the Sonoff web GUI. I have tried everything labeled with “topic” listed below including the ones that are group and full, etc. Is perhaps the protocol not compatible?

This is what shows up on the information page of the sonoff GUI:

Sonoff Basic Module

Grow Lamp

Program Version	9.3.1(tasmota)
Build Date & Time	2021-03-09T16:12:28
Core/SDK Version	2_7_4_9/2.2.2-dev(38a443e)
Uptime	0T00:22:15
Flash write Count	84 at 0xF8000
Boot Count	14
Restart Reason	Software/System restart
Friendly Name 1	Grow Lamp
AP1 SSId (RSSI)	dNET (78%, -61 dBm)
Hostname	Sonoff-04
MAC Address	80:7D:3A:18:57:FA
IP Address (wifi)	192.168.1.242
—	—
Gateway	192.168.1.1
Subnet Mask	255.255.255.0
DNS Server	192.168.1.163
MQTT Host
MQTT Port	1883
MQTT User	DVES_USER
MQTT Client	DVES_1857FA
MQTT Topic	tasmota_%06X
MQTT Group Topic 1	cmnd/tasmotas/
MQTT Full Topic	cmnd/tasmota_1857FA/
MQTT Fallback Topic	cmnd/DVES_1857FA_fb/
MQTT No Retain	Disabled
Emulation	Belkin WeMo
ESP Chip Id	1595386
Flash Chip Id	0x146085
Flash Size	1024 kB
Program Flash Size	1024 kB
Program Size	593 kB
Free Program Space	408 kB
Free Memory	25.9 kB

Any assistance getting this to work would be great so I don’t have to wire a junction box with relays.
Thank you for your help!

-Dino

[dino9848]

And Kyle, I cannot thank you enough for the inspirational tutorial videos and software. Your work has been the impetus for my daughter, son and I to put together our own (modest)

hydroponic system. Just wanted to say thank you!

[KyleGabriel]

That’s great! I’ll post a How To for controlling a Tasmota device with Mycodo later and post a link to it here.

[KyleGabriel]

Check out the new HowTo I created for controlling Tasmota outputs using Mycodo and let me know if you run into any issues.

How To Control Tasmota Power Outlets with Mycodo

Tasmota is an open source firmware that can be flashed to a number of devices to expand their functionality. There are many wireless power strips and outlets that are Tasmota-compatible, and these can be a good option to work with Mycodo for remote power-switching applications. Check out the Tasmota Supported Devices Repository (specifically Plugs and Sockets) to see which devices can be flashed with the Tasmota firmware. Once flashed with the Tasmota firmware, your outlets can be controlled w…

[dino9848]

Kyle! Got the mqtt output working with your writeup! This is a huge time saver overall instead of having to wire relays directly to the Pi! I didn’t have the mqtt server running on my Pi and my host was blank in the Tasmota mqtt. Took 5 min and it just works.

-Dino