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- Sat Dec 26, 2020 9:19 pm
- Forum: Sensors
- Topic: Ultrasonic Module (HCARDU0047)
- Replies: 2
- Views: 8992
Re: Ultrasonic Module (HCARDU0047)
Hi guys, I bought two ultrasonic module sensors (HC-SR04) at hobbycomponents which I connected to an STM32 board and the sensors are working. However I stumbled over something strange. In all the data sheets or specs that I could find, it's indicated that the output-voltage of the ECHO-pin is 5V whe...