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Photo cell (CdS photoresistor)
Adafruit Gemma Sensor Starter Pack
Photo cell (CdS photoresistor)
CdS cells are little light sensors. As the squiggly face is exposed to more light, the resistance goes down. When its light, the resistance is about 5-10KΩ, when dark it goes up to 200KΩ. To use, connect one side of the photo cell (either one, its symmetric) to power (for example 5V) and the o...
Adafruit Gemma Sensor Starter Pack
Get started with wearable electronics using the Adafruit Gemma Sensor Starter Pack. This all-in-one kit includes a GEMMA V2 board, sewable RGB NeoPixels, multiple sensors, a rechargeable battery with charger, and everything you need to build interactive sewable projects — no soldering required. ...
