Use a Comparator or Op-Amp to Simplify Light Dependent Resistor Output
ArduinoBasic Electronics

Use a Comparator or Op-Amp to Simplify Light Dependent Resistor Output

If your project calls for light sensitivity, it’s hard to beat light dependent resistors (LDRs), also known as photoresistors. They’re available for a few cents each, and their resistance varies based on how much light they receive. In the dark, these devices produce resistances in...

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ATtiny85 Light Sensor – I2C slave device
McuSensor

ATtiny85 Light Sensor – I2C slave device

Paweł Spychalski build a photoresistor based daylight meter sensor connected via I2C bus using ATtiny85: I love AVR ATtinyx5 series microcontrollers. They are cheap, easy to use, they can be programmed just like Arduinos and comparing to their size they offer great features. For...

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