Arduino
Arduino is an open electronics platform that combines a microcontroller board, simple programming tools, and many input/output pins for learning and prototyping.
Working Principle
Arduino is an open electronics platform that combines a microcontroller board, simple programming tools, and many input/output pins for learning and prototyping.
Step by Step
- Write a sketch in the Arduino IDE.
- Upload it using USB.
- The board runs setup once and loop repeatedly.
- Pins read sensors and control outputs.
Working Simulation
Verified Learning Notes
Arduino Nano is a small controller board commonly built around ATmega328P, with digital I/O, analog inputs, PWM pins, UART, I2C, and SPI.
Nano reads sensors, receives commands, and sends control signals to L293D, servo, and modules.
Do not power motors from Arduino pins. Use a regulated 5V logic rail and a separate motor rail through the driver.
Upload Blink first, then read one sensor, then control one motor channel before building the full robot.
Simulation Challenge
Use the working simulation above before touching wires. Change one value or command at a time, predict the result, then compare it with the diagram and the real module.
- Say what input changed.
- Predict the output.
- Run the simulator.
- Explain why the result is correct for Arduino.
Authenticity Checklist
- Does the diagram match Arduino Nano pin names?
- Does every signal have a common ground reference?
- Is the module powered at its correct voltage?
- Does the explanation separate signal, data, power, and mechanical motion?