Adafruit has today announced the availability of its new Circuit Playground Express for 4-H which is now available to purchase priced at $24.95. ... – 1 x Light sensor ...

In the circuit, the voltage at pin 3 is set by VR1 so as to keep the output high in a particular light level. The high output keeps the LED off. The PN Photodiode act as the light sensor. When the ...

Adafruit has this week announced the availability of its new LTR390 UV Light Sensor and is one of the few low-cost UV sensors available on the market.

The timer is built on the Adafruit Circuit Playground Express, a devboard that features 10 RGB LEDs already onboard, making the project a cinch. It also comes with a MEMS microphone and a light ...

If I have the sensor mounted on the toolhead and shining down, with a chuck and a bit in between, two inches might be alright. Adafruit has another breakout that only measures between 5 mm and 200 mm.

Adafruit says the Time Circuit Clock can’t be sold because of trademark issues, but that means PhilB has put the entire thing together out of stock parts (sold through the Adafruit store, of ...

The series, called Circuit Playground, ... Circuit Playground Is Adafruit’s Educational Series For Helping Kids Learn About Electronics. Darrell Etherington. 4:30 AM PDT · April 2, 2013 ...