Depends on the MCU, but generally STM32 is 1.7-3.6V | Hacker News

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		the__alchemist 5 months ago \| parent \| context \| favorite \| on: Qualcomm to acquire Arduino Depends on the MCU, but generally STM32 is 1.7-3.6V

0x457 5 months ago [–]

STM32 is 3v3 logic.

the__alchemist 5 months ago | [–]

Not necessarily; see above (Or a datasheet)

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