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. 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. **GND** can be found on all three headers. **GPIO0** can be accessed two ways:
**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. 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. 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.