Is it possible to connect SRF05 module (ultrasonic) to stm32f030k6t6 and work with 3.3V?
Hello, I am moving your post to the Keil tools forum, though I recommend posting to the STM32 forum below, which will be a better audience for your question:
https://community.st.com/s/topic/0TO0X000000BSqSWAW/stm32-mcus