Adafruit has today announced the availability of its new Circuit Playground Express ... 1 x Temperature sensor (thermistor) – 1 x Light sensor (phototransistor). Can also act as a color sensor ...

This Circuit can compare the Light level in an area. It uses a PN Photodiode as the light sensor and IC CA3140 as voltage comparator. The circuit is ideal as the front end of burglar alarm circuits.

If you’re Hackaday alum [Jeremy Cook], you make a sound-reactive, light-up guitar strap and ... The brains of this operation is Adafruit Circuit Playground Express, which runs off of a lipstick ...

Future episodes of Adafruit Circuit PlayGround will cover a wide range of topics, from basic components like resistors and capacitors to more complex concepts such as microcontrollers and sensors.

Adafruit’s testers found it worked best at around 10 mm to around 150 mm, or around 7.5″ and under. One advantage over the Sharp, the VCN4010 has a light sensor built into it. It has some nice ...

the unit of measurement for electric current flowing through a circuit. The co-hosts are Adabot, an adorable robot puppet helping keep the kids entertained, and Adafruit founder Limor Fried ...