In this paper, a CMOS image sensor based on avalanche photodiodes (APDs) for time-of-flight optical ranging is presented. In-pixel phase-sensitive detection was obtained thanks to the modulation of ...

Photodiode sensors are widely used recently. The article first introduced the operating principle of the photodiode. Then, the Volt-Ampere characteristics of photodiode under certain conditions are ...

Written by Kevin (KTOWN) Townsend for Adafruit Industries. BSD license, check license.txt for more information All text above must be included in any redistribution To install, use the Arduino Library ...