LDRs or Light Dependent Resistors are very useful especially in light/dark sensor circuits. Normally the resistance of an LDR is very high, sometimes as high as 1000 000 ohms, but when they are illuminated with light resistance drops dramatically.
High Precision AM2302 DHT22 Digital Temperature & Humidity Sensor
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- Size: 40 * 23mm(approx)
- Voltage: 5V
- Port: digital two-way single bus
- Temperature range: -40-80 Celsius ± 0.5 Celsius
- Humidity :20-90% RH ± 2% RH
- Platform: Ardui-no, MCU
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