3 ms·
ESP32 has 18 ADC input channels. But if you are using Wifi, you can only use 8 of the 18 for ADC conversion: GPIO pins 32-39. Other 10 pins, on which ADC2 chan
by zazaulola 2y ago
ESP32 has 18 ADC input channels. But if you are using Wifi, you can only use 8 of the 18 for ADC conversion: GPIO pins 32-39.
Other 10 pins, on which ADC2 channels are possible, can only accept pulse data if you are using Wifi.
This is probably due to firmware limitations.
- mystified5016 2y agoEspressif implies that the WiFi hardware uses ADC2 for something. It sounds like a hardware limitation, a firmware issue would have been patched a long time ago.