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Zadnje ogledano
PHOTO CELL (CDS PHOTORESISTOR), ADAFRUIT 161
- Zaloga DA, 14 kos/ov
- Znamka: ADAFRUIT
- Id številka: 3326/59
Description
CdS cells are little light sensors. As the squiggly face is exposed to more light, the resistance goes down. When it's light, the resistance is about ~1KΩ, when dark it goes up to ~10KΩ.
To use, connect one side of the photocell (either one, it's symmetric) to power (for example 5V) and the other side to your microcontroller's analog input pin. Then connect a 10K pull-down resistor from that analog pin to ground. The voltage on the pin will be 2.5V or higher when it's light out and near ground when it's dark.
Technical Details
Dimensions:
- Length: 4.46mm/0.18in
- Width: 5mm/0.20in
- Height: 2.09mm/0.08in
- Weight: 0.25g/0.01oz
Specifikacije
Glavno
Processor
Broadcom BCM2837B0, Cortex-A53 64-bit SoC @ 1.4 GHz
Memory
512MB LPDDR2 SDRAM
Connectivity
2.4 GHz and 5 GHz IEE 802.11.b/g/n/ac wireless LAN, Bluetooth 4.2/BLE
Access
Extended 40-pin GPIO header
Video & sound:
1 × full size HDMI
Dimenzije
Dolžina
99 mm
Širina
207 mm
Višina
208 mm
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