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- 08 Apr 2023, 17:35
- Forum: ESP Easy: Hardware
- Topic: ESP32 SonOff Dual R3 Schematics.
- Replies: 23
- Views: 18272
Re: ESP32 SonOff Dual R3 Schematics.
Hi all, The schematic of luizhenriquemm is right. But the assumption of the diode used is wrong this diode is a "BV03C Zener diode 12a 3v" The working of the circuit is simple (after bringing one of my R3 lite devices I found it). The IO lines on the ESP32 are kept high by the pullup resis...