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RavenSystem / esp-homekit-devices

Advanced firmware to add native Apple HomeKit and custom configurations, compatible with any SoC based on ESP32, ESP32-S, ESP32-C and ESP8266 series. (Shelly, Sonoff, Electrodragon, Tuya...)
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Sonoff s20 pcb revisions and ravencore compatibility + power mods #443

Closed Nekomae closed 5 years ago

Nekomae commented 5 years ago

Just some useful info i found from flashing varios sonoff s20 sockets and the different pcb revs out there. Hope it helps someone. YMMV.

PCB Rev 1.3 Had to add 4.7uf or 10uf capacitor to the 3v3 power line as close to 3v3 regulator as you can fit it. This helped with non responsive sockets in homekit. Super stable now.

PCB 2.3 (possibly unofficial) Has extra capacitor mentioned above. Could only flash with non OTA firmware or socket would not get past initial OTA install. No pcb fuse or air gap.

RavenSystem commented 5 years ago

Many thanks for your info!

fanlessfan commented 5 years ago

@Nekomae is PCB Rev 1.3 print "S20_US v1.3"? thx