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Added info regarding [issue #4807]

Morphy99 2019-01-29 20:00:12 +00:00
parent cbf4971881
commit 4d40518531
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Flash-Sonoff-using-Raspberry-Pi.md

@ -4,7 +4,6 @@ All is basically described here, but it is a little outdated:
https://www.sigmdel.ca/michel/ha/sonoff/flashing_sonoff_en.html
So, I will summarize the process and needed adoptions based on the above blog, please refer there for a more detailed explanation ;)
User feedback it doesnt work with RPi 3B+ ([issue #4807](https://github.com/arendst/Sonoff-Tasmota/issues/4807)) If someone managed please update wiki
# Preparation of the Raspberry:
1. Install esptool (pip needed)
@ -47,7 +46,8 @@ Please note following overlays setting port to `/dev/ttyAMA0`
# Wire RaspberryPi:
Connect GND, RX->TX and TX->RX as shown below.
You may need to provide external 3.3.v power to the sonoff. (I tried using a raspberry pi zero with an old power supply and it did not provide enough power for the pi and the sonoff.) See sigmdels website above for a wiring diagram.
If you power the Sonoff with the 3.3v power from the RPi it will cause it to reboot when connecting. You can still enter flash mode if you power up the RPi with the 3.3v connected and pressing the button on Sonoff simultaneously. It's recommended to use either an external power supply for this or use the 5V GPIO and a 3.3V Voltage Regulator.
([issue #4807](https://github.com/arendst/Sonoff-Tasmota/issues/4807))
**Do not connect 3,3V yet!**