Optoelectronics hold a range of possibilities for the hardware experimenter — indeed who among us hasn’t added LEDs aplenty to our work ... that an LED is also a photodiode, and can even ...

Researchers developed a single photodiode sensor that detects full-color light using perovskite materials, impedance data, ...

In order to help his friend prepare for a talk at DEFCON this weekend, [Craig] built an IR photodiode amplifier circuit. The circuit extended the detection range of the hack from a few inches to ...