LDR, short for Light Dependent Resistor, also known as photoresistor is made of semiconductor material. The resistance of an LDR decreases with increasing light intensity.
*Safety precaution: If you are a beginner, please do not tamper with mains electricity. As this project is for beginners, I will show you how to use an alternative. The power bank and LED are good alternatives to mains electricity supply and bulb.
Supplies:
- LED
- LDR
- Relay Module - Single channel 5V
- Resistors - 1kΩ and 10kΩ
- Arduino Uno R3
- Solderless Breadboard - Mini
- Power bank - 10000 mAh
- Old USB 1.0/2.0 A type cable
- Jumper Wires
- Jumper Cable
Setting up your hardware
Setting up your hardware
Connections:
- LDR - A0
Coding
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