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Added images with pinouts annotated.

Robin Clarke 2019-01-15 09:49:47 +01:00
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Sonoff-B1-and-B1-R2.md

@ -11,7 +11,10 @@ Please see the [Hardware Preparation](https://github.com/arendst/Sonoff-Tasmota/
As always, you need to access the serial interface. First pop up the top part of the bulb with controlled force. The PCB as shown in the image will become visible.
<img alt="Sonoff B1 PCB" src="https://user-images.githubusercontent.com/2870104/30506986-b5be2882-9a80-11e7-849a-ccd65dd8a1a6.png" width="60%" align="right" />
<img alt="Sonoff B1 PCB" src="https://user-images.githubusercontent.com/174291/51168785-8f591e00-18aa-11e9-897e-686243da292a.png" width="60%" align="right" />
<img alt="Sonoff B1 PCB" src="https://user-images.githubusercontent.com/174291/51168788-91bb7800-18aa-11e9-9056-202275e47840.png" width="60%" align="right" />
The **four serial pins** (3V3, Rx, Tx, GND) as well as the GPIO0 signal line are available as test points and clearly marked. Solder wires to those or use pogo pins as you prefer.