Hc-sr04 problem

3

I’m not sure if this would be the same for your project but I had an issue with the range sensor not working because the voltage supplied was low. @nkrkv and @gweimer were able to help me fix it by adding an extra battery to my power supply. I was surprised that voltages around 4.2-4.5 would make it not work but that is what happened for me.

1 Like