Interfacing Laser Diode with Arduino Uno | Learning Corner
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 in various sizes and shapes. For example, a 3V to 5V DC, 5mW laser module is available in a metal case (Fig. 1). It produces a laser of about.