ESP32-C3-Mini-1U ADC0 question.

MangledBanana
Posts: 2
Joined: Wed Sep 17, 2025 4:28 pm

ESP32-C3-Mini-1U ADC0 question.

Postby MangledBanana » Wed Sep 17, 2025 5:53 pm

Hey,

Since all the ADCs on ADC0 are multiplexed to the one SAR, is the offset and gain the same across all the ADC channels?

The reason I ask is that I'm working on a PCB that's going to use 4/5 of the ADCs on ADC0. I was thinking I could add a simple circuit that would calculate the offset and gain of ADC0 at boot to calibrate the other four channels.

Hope my question was clear!

MB

MangledBanana
Posts: 2
Joined: Wed Sep 17, 2025 4:28 pm

Re: ESP32-C3-Mini-1U ADC0 question.

Postby MangledBanana » Sat Sep 27, 2025 10:29 am

Sorry, I meant ADC1 obviously. I didn't realise the channels start counting at 1.

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