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Updated Sonoff Touch (markdown)

Michael Ingraham 2019-09-04 12:59:37 -04:00
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Sonoff-Touch.md

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* Itead Product Page: http://sonoff.itead.cc/en/products/residential/sonoff-touch
* Itead Shop: https://www.itead.cc/sonoff-touch.html
* Itead Wiki: (na)
* [Itead Product Page](http://sonoff.itead.cc/en/products/residential/sonoff-touch)
* [Itead Shop](https://www.itead.cc/sonoff-touch.html)
* Itead Wiki: (n/a)
Other than most Sonoff modules (ESP8266) the Sonoff Touch is based on the ESP8285. Though the actual chip inside may be a [PSF-A85](https://www.itead.cc/wiki/PSF-A85).
Unlike most Sonoff modules, the Sonoff Touch is based on the ESP8285 rather than the ESP8266. The actual chip inside may be a [PSF-A85](https://www.itead.cc/wiki/PSF-A85).
## Serial Connection
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<img title="Sonoff Touch US version" src="https://github.com/arendst/arendst.github.io/blob/master/media/touchus.jpg" width="44%" />
<img title="Sonoff Touch EU version" src="https://github.com/arendst/arendst.github.io/blob/master/media/toucheu.jpg" width="48%" align="right" />
Be careful while removing and reassembling the top PCB. The touch sensor should be back in its intended place, be sure to not touch it directly during the modifications.
Be careful while removing and reassembling the top PCB. The touch sensor should be back in its intended place. Be sure to not touch it directly during the modifications.
The Sonoff Touch button is not connected to **GPIO0** and can hence not be used to bring the module into [Programming Mode](https://github.com/arendst/Sonoff-Tasmota/wiki/Hardware-Preparation#bringing-the-module-in-flash-mode). A connection between GPIO0 and GND needs to be made manually. GPIO0 can be found on the right side of the ESP8285 and is the second pin from the bottom, as can be seen on the pictures.
The Sonoff Touch button is **not connected to GPIO0** and hence cannot be used to bring the module into [Programming Mode](Hardware-Preparation#bringing-the-module-in-flash-mode). A connection between GPIO0 and GND needs to be made manually. GPIO0 can be found on the right side of the ESP8285 and is the second pin from the bottom, as can be seen on the pictures.
**Note:** Even if you have the PSF-A85 chip inside instead of a default ESP-8285, the GPIO0 pin is in the same location. Pay attention to the corner of the chip with three unused solder contacts. That is where the external antenna connector is located in the images above. The PSF-A85 in the Sonoff Touch does not have the external antenna connector soldered on.
**Note:** Even if you have the PSF-A85 chip inside instead of a default ESP8285, the GPIO0 pin is in the same location. Pay attention to the corner of the chip with three unused solder contacts. That is where the external antenna connector is located in the images above. The PSF-A85 in the Sonoff Touch does not have the external antenna connector soldered on.
### Control ON/OFF Leds on Sonoff Touch solution
Soldering the switch LED where the Wifi LED is and than you can control the LED.
When you use the command Ledpower ON.
The Switch LED ist on all the time, even when the switch is off
So you can easy see and find the switch in the dark
Solder the switch LED where the Wi-Fi LED is and then you can control the LED by using the command `LedPower ON`. The Switch LED is on all the time, even when the switch is off so you can easily find the switch in the dark.
![](https://user-images.githubusercontent.com/47263019/52157768-158aa800-2692-11e9-8266-6775fec80c11.jpg)
Or you can soldering the switch LED on 3.3v and ground
but then you cant control the LED, it is always on and very bright
Alternatively, you can solder the switch LED on 3.3v and ground but then you can't control the LED, it is always on and very bright.
![](https://user-images.githubusercontent.com/47263019/52159715-7d4bed80-26a8-11e9-8ed5-8a21dda1e349.jpeg)
![](https://user-images.githubusercontent.com/47263019/52159716-8046de00-26a8-11e9-83fc-7334679b620a.jpeg)
hope that helps