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by jacob@mattiq.com
Wed Jan 24, 2024 6:56 pm
Forum: Hardware
Topic: ESP32 SPI issue (voltage levels)
Replies: 1
Views: 983

ESP32 SPI issue (voltage levels)

I have (technically had because it smoked) a PCB board with an ESP32 Dev Board plugged in. I had 4 external ADCs. ADC 1 and 2 were on hspi and ADC 3 and 4 were on vspi (doesn't matter if hspi/vspi are switched). When I run the code with the ESP32 powered via my USB everything works fine. When I remo...