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Updated Sonoff Dual and Dual R2 (markdown)

Theo Arends 2017-12-02 16:39:37 +01:00
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Sonoff-Dual-and-Dual-R2.md

@ -20,7 +20,7 @@ As always, you need to access the serial interface. The **four serial pins** (VC
Programming the Sonoff Dual R2 is a breeze although the on-board-button is not connected to GPIO0. As with all ESP8266/ESP8285 modules pulling GPIO0 to GND is needed to put the chip in programming mode. You need to **connect GPIO0 and GND** during power up.
<img alt="Sonoff Dual R2" src="https://github.com/arendst/arendst.github.io/blob/master/media/dualr2d.jpg" width="38%" align="right" />
<img alt="Sonoff Dual R2" src="https://github.com/arendst/arendst.github.io/blob/master/media/dualr2d.jpg" width="30%" align="right" />
Luckily both Gnd and GPIO0 (as Button 0) are available on the second header. A simple jumper between GND and the Button 0 pin will do while programming will do.