This example shows how you can use the Whadda WPSE352 photosensitive sensor module with an Arduino® compatible board. The example program reads the digital light signal value from the D0 pin on the ...

A laser diode can be interfaced with Arduino Uno using photoresistors, photodiodes, phototransistors or similar sensors and detectors. Fig. 1: A laser pointer. Laser diodes and modules are available ...