Use more than 10 adc pins F401 BlackPill?

Mikey · Post by **Mikey** » Fri Jan 27, 2023 5:43 pm

Hi to all,

first of I'm new to STM32. Up to now I have only been working in the classic Arduino realm. The need for more ADC and Hardware PWM pins made me switch to a black pill board.

Is there any way to use more than the standard 10 adc pins (PA0-PB1) on the F401 BlackPill board?

In the documentation it speaks of 16 channels. I would need a total of 12 adc lines for my project.
Any way of defining GPIOs as additional adc pins?

Thx a lot in advance!

Regards,
Mike

GonzoG · Post by **GonzoG** » Fri Jan 27, 2023 6:42 pm

The datasheet say "up to 16 channels", not that every F401 has 16 channels.
F401Cx have only 10 ADC channels. If you need more you either use multiplexer or bigger MCU (F401Rx of F401Vx).

Mikey · Post by **Mikey** » Sat Jan 28, 2023 1:46 pm

Bummer

Thanks for the clarification!
The "up to 16 channels" really had me confused...

dannyf · Post by **dannyf** » Sat Jan 28, 2023 3:07 pm

maybe an analog switch?

Arduino for STM32

Use more than 10 adc pins F401 BlackPill?

Use more than 10 adc pins F401 BlackPill?

Re: Use more than 10 adc pins F401 BlackPill?

Re: Use more than 10 adc pins F401 BlackPill?

Re: Use more than 10 adc pins F401 BlackPill?