I am using a Jetson NANO with my Jetbot AI kit. I want to install a motor wheel encoder (lm393 based MH Sensor Series FC03).
I connected the VCC to 3V3, GND to GND and D0 to many GPIO ports, but the symptoms are totally the same:
- if D0 is not connected: HIGH
- if I connect D0 when the sensor is covered: HIGH
- if I remove the “cover” (so the light goes through): LOW
- if I place the cover again it is still LOW
Removing and replacing the cover makes the led on the sensor to go to LOW and HIGH (I guess, but it is NEVER totally off, except if I disconnect the D0 from the GPIO board), but this is not detected by the Jetson.GPIO package.
I can see that it is going from HIGH to LOW if I follow the steps above (disconnected D0, then cover + connect, then remove cover), but I am unable to change it back to HIGH, so basically my motor wheel encoder will never work.
Is it possible to fix this issue?
I am using the latest jetbot ai software with the official jetson nano OS.