Arduino (Leonardo Pro Micro) with LDR (Light Dependent Resistor) Tutorial

Arduino (Leonardo Pro Micro) with LDR (Light Dependent Resistor) Tutorial

Arduino (Leonardo Pro Micro) with LDR (Light Dependent Resistor) Tutorial

In this tutorial we are going to connect an LDR(Light Dependent Resistor) with Arduino Leonardo Pro Micro. We will be continuing our tutorial from http://iotmonk.com/courses/getting-started-with-arduino/ . So if you are seeing this tutorial directly, I will recommend you to go through the previous tutorial. An LDR (Light Dependent Resistor) or in common language known as photo resistor is an electronic component which are light sensitive devices. We will be using LDR(Light Dependent Resistor) with an Arduino Leonardo Pro Micro such that, when the intensity of external light (bulb or other light source) is more, then the LED will glow at maximum. And when the intensity of external light is less, then the LDR will detect it and lower the intensity of the LED. The materials you will be needing for this tutorial are:

  • Half Size Breadboard - 1
  • Blue LED - 1
  • Arduino Leonardo Micro - 1
  • Single Core Wire
  • Wire Stripper - 1
  • Nose Plier - 1
  • Micro USB Cable - 1
  • LDR - 1
  • 10K Resistor - 1

If you don't have the components, you can buy it from the below links (Most of the general components like LED and wire, you can easily get from local market. I am just listing out the important and specific components).

For USA :
LDR (Light Dependent Resistor) : PODOY 20PCS Photoresistor GL5537 5537 LDR Photo Resistors Light-Dependent
Half Size Breadboard : microtivity IB400 400-point Experiment Breadboard
Arduino Leonardo Pro Micro : Arduino Leonardo Pro Micro
Micro USB cable : Micro Usb Cable
If you want then you can get rest of the components from : Amazon USA Store

For India :
LDR (Light Dependent Resistor) : LDR - Light Dependent Register- Photo resistor (6 Pcs)
Half Size Breadboard :Solderless Breadboard with 400 Tie-Point (White)
Arduino Leonardo Pro Micro : xcluma Atmega32U4 5V/16M Mini Leonardo Pro Micro Arduino Compatible
Micro USB Cable : Universal Micro USB Flat Data Cable -Rock Original-Grey
If you want then you can get the rest of the components from : Amazon India Store

Click on the first lesson below to get started.

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