The sensor is really just an infrared photodiode inside of a tube. The diode is connected to an analog ... The Arduino can detect the amount of overall ambient light and then adjust each reading ...

Analog references are common to microcontrollers that have ADCs. Even if you’re not working with an Arduino, read through the article and use what you learn with your uC of choice.

so they can have a value only between 0 and 1,023 when read by the analog pin of the Arduino. This number sends a pulse to the Arduino, which in turn tells the servos how far to move. A joystick ...

NORWOOD, Mass.--(BUSINESS WIRE)--Analog Devices, Inc. (ADI) today introduced the ADPD188BI, an integrated optical module featuring two LEDs, photodiode, and analog front-end (AFE) integrated ...

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 ...

Accepting the challenges associated with interfacing an optical-power-monitoring device to the cathode of a PIN photodiode ... price is $1.93 each/1,000. ANALOG DEVICES INC., Wilmington, MA.