Logo
Sonoff Mini Switch
Model reference: IM190416001
Sonoff Mini

Available from:
Itead.cc
Aliexpress.com
Banggood.com
Amazon.com

Manufacturer:
Sonoff.tech

Flashed with:
Sonoff DIY

GPIO #Component
GPIO00 Button1
GPIO01 None
GPIO02 None
GPIO03 None
GPIO04 Switch1
GPIO05 None
GPIO09 None
GPIO10 None
GPIO12 Relay1
GPIO13 Led1i
GPIO14 None
GPIO15 None
GPIO16 User
FLAG None
Template
{"NAME":"Sonoff Mini","GPIO":[17,0,0,0,9,0,0,0,21,56,0,0,255],"FLAG":0,"BASE":1}

The Sonoff Mini is, as the name implies, a very small device, designed to be hidden where there’s only supposed to be cables. Since it’s not supposed to be visible, it’s also designed to easily attach an external button.

Tasmota can be flashed on this device via OTA using the Sonoff DIY feature.

Serial Flashing

Several free GPIOs are available. The OTA jumper pin is the most accessible and very easy to use on a pin header.

PCB with GPIO's etc labelled

GPIO Description
0 Button
1 TX
2 Available
3 RX
4 S2 (external switch input)
12 Relay and red LED
13 Blue LED
16 OTA jumper pin
GND S1 (external switch input)