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Updated Sonoff Dual and Dual R2 (markdown)

Theo Arends 2017-12-02 16:46:19 +01:00
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Sonoff-Dual-and-Dual-R2.md

@ -24,12 +24,14 @@ Programming the Sonoff Dual R2 is a breeze although the on-board-button is not c
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.
### Configure Dual R2
### Use external switches
To control relays by external switches connected the switch to the header at the designated positions. Button 0 connected to GND controls relay 1 and button 1 connected to GND controls relay 2.
The relays can be controlled by external push buttons or switches connected to the header at the designated positions. Button 0 connected to GND controls relay 1 and button 1 connected to GND controls relay 2.
See the image on the right how to configure this functionality in Tasmota.
**NOTE** Make sure not to use a switch that keeps the connection between GND and Button 0 active while power is re-applied as the device will start in programming mode.
## Sonoff Dual
### Serial Connection