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SBRDIYables
Published © LGPL

Working with 2 Arduinos

This may not find any practical application in the real world. But, I believe this will help beginners in understanding the Arduino pins.

BeginnerProtip3,059
Working with 2 Arduinos

Things used in this project

Hardware components

Arduino UNO
Arduino UNO
×2
USB Cable 2.0 Type A/B for Arduino Uno
DIYables USB Cable 2.0 Type A/B for Arduino Uno
×2
LED
DIYables LED
×2
Resistor
DIYables Resistor
×2
Jumper Wires
DIYables Jumper Wires
×4
Breadboard
DIYables Breadboard
×1
Starter Kit
DIYables Starter Kit
Optional
×1
Prototype Expansion Board for Arduino Uno
DIYables Prototype Expansion Board for Arduino Uno
Optional
×1

Software apps and online services

Arduino IDE
Arduino IDE

Story

Read more

Schematics

Breadboard Diagram

Make connections as shown in the figure.

Code

Code for Blinking of LED

Arduino
Upload the same code for both the Arduinos
const int LED = 3;

void setup() {
    pinMode (LED, OUTPUT);
}

void loop() {
    digitalWrite (LED, HIGH);
    delay (1000);
    digitalWrite (LED, LOW);
    delay (1000);
}

Credits

SBR
37 projects • 52 followers
Mechanical Engineer
Contact
DIYables
0 projects • 88 followers
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  • Arduino
  • DIYables