is it possible to connect SRF05 module (ultrasonic) to stm32f030k6t6 and work with 3.3V?

jhasa.1 · ‎2022-02-20

MM..1 · ‎2022-02-20

Yes you need connect to 5V tolerant pins

jhasa.1 · ‎2022-02-20

Can I connect Vcc to 3.3V and work with it?

MM..1 · ‎2022-02-20

This info you need ask SRF05 author...

Andrew Neil · ‎2022-02-21

You could've started by summarising the suggestions you've had already:

https://www.avrfreaks.net/forum/working-srf05-33v

A complex system that works is invariably found to have evolved from a simple system that worked.
A complex system designed from scratch never works and cannot be patched up to make it work.

Andrew Neil · ‎2022-02-21

@MM..1 "you need connect to 5V tolerant pins"

Indeed - for signals from the device to the STM32.

If any signals need to go from the STM32 to the device (eg, the trigger?), you will have to check the module's documentation to see if the 3V3 level is going to be sufficient...

A complex system that works is invariably found to have evolved from a simple system that worked.
A complex system designed from scratch never works and cannot be patched up to make it work.