I bought an Arduino Nano ble 33 but when I try to power my MQ-4 and MQ-8 sensors, these don't turn on at all, they do turn on if I switch to the 3.3V tho.

Is there anything special that I need to do to be able to use the 5V pin, or my board is faulty?

enter image description here

P.S: When I say 5V I mean the pin next to the green rectangle.

  • Did you set it up to use it? support.arduino.cc/hc/en-us/articles/… Jul 1 '21 at 18:21
  • I haven't made a solder bridge on the two pads, however I am powering the board through the USB port (please note that this is not the BLE Sense board)
    – human
    Jul 1 '21 at 18:23
  • Oh I have just seen that as an OR when it is actually and AND, so both conditions need to be met
    – human
    Jul 1 '21 at 18:25
  • Says there it needs to be bridged. Also stated on arduino.cc/en/Guide/NANO33BLE. Jul 1 '21 at 18:26
  • To be honest, I couldn't find any information on my google search, but you are right, it says so.
    – human
    Jul 1 '21 at 18:27

i think you solder the two pads but i'll tell you something: use the 3.3v pin

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.