mirrors
/
Tasmota
mirror of https://github.com/arendst/Tasmota.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Updated Sonoff Dual (markdown)

Thomas Dietrich 2017-06-04 15:34:14 +02:00
parent a27a01236d
commit 868280a285
1 changed files with 1 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
Sonoff-Dual.md

@ -14,9 +14,7 @@ As always, you need to access the serial interface. The **four serial pins** (3V
Programming the Sonoff Dual is more difficult because the on-board-button is not connected to GPIO0. As with all ESP8266 modules pulling GPIO0 to GND is needed to put the chip in programming mode. You need to **connect GPIO0 and GND** during power up.
**GND** can be found on the button 0 or button 1 headers.
**GPIO0** can be accessed two ways:
**GND** can be found on all three headers. **GPIO0** can be accessed two ways:
1. Unscrew the Sonoff Dual from the housing and access the underside of the PCB You can find GPIO0 on one side of a resistor as shown in the second image.
2. GPIO0 can be found on the small inter layer [via](https://en.wikipedia.org/wiki/Via_(electronics)) pointed at in the first image. Attention: If the via is covered by silk screen (green) you need to expose the underlying conductive (copper) by careful scratching it off.