I am working on a tutorial for BluzDK and I would like to know how much voltage is needed to register as high on a digital pin?
I have connected the output pin of my sensor to a digital pin of my BluzDK. My multimeter shows 3.20 to 3.25 V when the sensor goes high, but the digital pin
pinMode(sensor, INPUT_PULLDOWN); does not recognize it. It only works when I use the 3v3 V of my Photon instead of the sensor output.
Do you experience the same?
I would be very grateful if you could help me