Lesson Template

Serial Communication

Use the Serial Monitor to debug and inspect values.

Progress

20% completed

Run in Simulator

Lesson Overview

This lesson introduces the core ideas behind Serial Communication.

  • Serial.begin()
  • Serial.print()
  • Debug habits

Example Code

Serial.begin(115200);
Serial.print("Sensor: ");
Serial.println(sensorValue);

Lessons in This Section

Lesson 74: Using Print Class in Arduino

Learn how Print class drives print()/println(), supports multiple data types, and helps format debug output.

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Lesson 75: Using Serial Communication

Learn Serial.begin(), baud rate, print/println output, and basic input handling with Serial.read() and Serial.available().

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Lesson 76: Understanding Stream Class

Learn Stream class basics, read/available usage, parseInt()/parseFloat(), and how Stream differs from Print.

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