I want to use the internal reference voltage (1.2V) of stm32f103 blue pill using Arduino IDE. I searched the whole internet but couldn't find anything. I need help with this. Thanks.

  • Did the whole internet include the datasheet for the chip? – Majenko Apr 22 at 8:15
  • 2
    Link to the core you're using, please. It should implement analogReference(INTERNAL) or something similar. – Majenko Apr 22 at 9:18
  • Maybe this will help a little: efton.sk/STM32/STM32_VREF.pdf (usualy it can be used to compute VREF+ or VDDA, as it can't be used directly as ADC reference) – KIIV Apr 22 at 11:47
  • And (different family, but it should be similar) community.st.com/s/question/0D50X00009XkePgSAJ/… – KIIV Apr 22 at 11:53

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