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Sonoff Basic R3

Michael Ingraham 2019-07-02 09:33:34 -04:00
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Sonoff-Basic.md

@ -20,6 +20,14 @@ If your switch is powering up but is showing a solid-blink-reset pattern see [th
* GPIO03 - RX PIN
* GPIO01 - TX PIN
## Sonoff Basic R3
This is the board layout for the third design iteration of the Sonoff Basic. This version of the device supports the new Itead DIY architecture which allows OTA firmware upload (support for OTA upgrade to Tasmota to be confirmed). The Sonoff Basic R3 uses the ESP8255 chip. With this version, the mains power reverts to solder rails directly on the PCB. It also moves the Wi-Fi module to a separate PCB mounted on the main PCB. It makes access to the serial pins quite difficult. The device was reviewed by DigiblurDIY in [this video](https://www.youtube.com/watch?v=A-WcIz47Lco).
**Sonoff Basic R3 available GPIO**
![](https://user-images.githubusercontent.com/34340210/60516116-13615f80-9cab-11e9-914b-d9509d6bbe20.jpg)
### Sonoff Basic R2
Around November 2018, Itead changed the layout of the Sonoff Basic ([issue #4515](https://github.com/arendst/Sonoff-Tasmota/issues/4515)). The new board is labeled as **Sonoff RF R2 POWER V1.0**. It is easily discerned from previous revisions since it uses wires instead of thick solder traces for mains power.
@ -41,7 +49,7 @@ You can remove the thick wires from the PCB to use the screw connection on the o
![](https://user-images.githubusercontent.com/47423730/52523999-1c1fad80-2c98-11e9-9b86-f50d82ff18cc.jpg)
## Sonoff Basic R1
This is the board layout for first board version of Sonoff Basic.
This is the board layout for the first board version of the Sonoff Basic.
![gpios](https://cdn.instructables.com/F8Q/0U89/J1WEQK7J/F8Q0U89J1WEQK7J.MEDIUM.jpg)