Maximum TTL input voltage on servo rail


What is the maximum GPIO input voltage for Cube Orange?

I want to connect the RPM sensor, it outputs a 5V level signal. Is it
acceptable? Should I use a 3.3V sensor instead?

Thank you


May I ask which carrier board did you use ?

GPIO is 3.3V.

Best regards,


Thanks for reply!

I use default configuration for Cube Orange with original carrier board. It is named ADS-B Carrier Board on some sites.