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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.

BeginnerProtip3,088
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
DIYables STEM V3 Board, Compatible with Arduino Uno R3
DIYables STEM V3 Board, Compatible with Arduino Uno R3
DIYables STEM V3 works as the Arduino Uno R3.
×1
DIYables STEM V4 IoT
DIYables STEM V4 IoT
DIYables STEM V4 IoT works as the Arduino Uno R4 WiFi.
×1
LED for Arduino, ESP32, ESP8266, Raspberry Pi
DIYables LED for Arduino, ESP32, ESP8266, Raspberry Pi
×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
DIYables STEM V3 Starter Kit - Fully Compatible with Arduino Uno R3
DIYables STEM V3 Starter Kit - Fully Compatible with Arduino Uno R3
×1
DIYables STEM V4 IoT Starter Kit - Fully Compatible with Arduino UNO R4 WiFi
DIYables STEM V4 IoT Starter Kit - Fully Compatible with Arduino UNO R4 WiFi
×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
DIYables
1 project • 91 followers
I would like to invite you to join and add your projects to DIYables platform https://www.hackster.io/diyables

Comments

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  • Arduino
  • DIYables