LDR

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In this example we connect a photoresistor to a micro:bit, the value read from the photoresistor corresponds to the amount of light present. The photoresistor is connected to P3 in this example. A photoresistor (or light-dependent resistor, LDR, or photocell) is a light-controlled variable resistor. The resistance of a photoresistor...

A photoresistor (or light-dependent resistor, LDR, or photocell) is a light-controlled variable resistor. The resistance of a photoresistor decreases with increasing incident light intensity; in other words, it exhibits photoconductivity..

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