How to use negative feedback to regulate output power from a laser diode using a simple, single op-amp based circuit ...

[Ashish Choudhary] married an Arduino with a display and a pollution sensor to give readings of the PM2.5 and PM10 levels in the air. The sensor uses a laser diode and a photodiode to detect and ...

In this project, we create a joystick-controlled laser by connecting two servos to ... The following is excerpted from the book Arduino Project Handbook: 25 Practical Projects to Get You Started ...

Not all light sensors respond to all wavelengths in this range and it is important, when choosing one, to be aware of how its sensitivity varies with wavelength. We shall mostly discuss photodiodes ..

PixelSensor™ multispectral sensors use exclusive on-chip filtering to pack up to eight wavelength-selective photodiodes into < 1 cm2 for simpler ... Advanced device modifications are accessible ...

In this fun project an ultrasonic distance sensor is used to detect a “target” (i.e., a person, a cat, a burglar, etc.). The Arduino illuminates (blasts) the target using an inexpensive laser diode ...

InGaAs linear arrays are employed in pulsed laser or direct time of flight (TOF), phase shift or indirect time of flight (TOF), and triangulation position sensors. Custom InGaAs Photodiodes and ...

The EL7900 light-to-current optical sensor integrates a photodiode and a current amplifier within a compact, 5-lead, lead-free ODFN package. Operating in a wide range of lighting conditions from 1 ...