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Updated Sonoff Mini (markdown)

Michael Ingraham 2019-10-14 09:21:03 -04:00
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Sonoff-Mini.md

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The 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.
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.
If you flash custom firmware on the Mini, several extra GPIO's becomes available. Most noticable is probably the OTA jumper pins, which are very easy to use, you may not even need to solder.
Tasmota can be flashed on this device via OTA using the [Sonoff DIY](Sonoff-DIY) feature.
Several free GPIO are available. The the OTA jumper pin is the most accessible and very easy to use on a pin header.
![PCB with GPIO's etc labelled](https://user-images.githubusercontent.com/3912017/66733148-dfc3d300-ee5e-11e9-8715-87c8ecb844a7.jpg)
* GPIO0 - Button
* GPIO1 - TX
* GPIO2 - Available
* GPIO3 - RX
* GPIO4 - External switch
* GPIO12 - Relay and red LED
* GPIO13 - Blue LED
* GPIO16 - OTA jumper pin
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