“Just to agree with previous positive reviews, the detector is easy to use and works very well in a range of lighting. I found I needed to use a 470K resistor with it to work across a wide range of lighting conditions, but it works great even at 3.3V which I'm using with a Teensy 4.0.”
“This photo transistor works very well. It can trigger a digital interrupt on a 3.3V MCU if used with a 10M to 20M series-resistor (depending on the light sensitivity you want), eg. for sensing if a light is on in a room etc.”
