Introduction: ARDUINO 101 | LIGHT DEPENDENT RESISTOR
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About: ENGINEERING & TECHNOLOGY | The creator is extremely passionate about Digital content creation, Arduino projects, Mechatronic projects, and RC modelling.
This Instructable will guide you through the process of testing an LM393 based LDR module with an Arduino ProMini.
Supplies
1) Arduino ProMini: Arduino ProMini
2) LM393 LDR MODULE: LDR MODULE
3) Half-sized breadboard: Breadboard
4) Male jumper wires: Jumper wires
5) FT232RL: FT232RL
Step 1: CONNECTIONS
LDR MODULE GND -> Arduino GND
LDR MODULE VCC -> Arduino VCC
LDR MODULE ANALOG OUT -> Arduino Analog Pin 0
Step 2: PROGRAMMING
1) Download the code.
2) Verify it.
3) Select port, board, and upload the sketch.
Attachments
Step 3: TESTING THE LDR MODULE
* SKIP TO 2:28 *
The LDR MODULE'S ANALOG OUTPUT VARIES LINEARLY WITH THE LUMINOSITY OF THE LIGHT SOURCE.
The LDR MODULE'S DIGITAL OUTPUT THRESHOLD CAN BE ADJUSTED WITH THE HELP OF THE ONBOARD POTENTIOMETER.
