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LESSON 14: Read User Input From the Serial Monitor

This lesson demonstrates how to create a user-interactive program using the Arduino, focusing on obtaining user input through the serial monitor and performing different operations based on the input. Here’s a brief overview of what you will learn:

  1. Introduction to User Input via Serial Monitor : An introduction to the concept of reading user input from the Arduino serial monitor, which is essential for interactive projects.

  2. Setting Up Serial Communication: Detailed instructions on setting up serial communication in the Arduino code, using Serial.begin(9600) to initialize the serial monitor.

  3. Reading Different Data Types: Step-by-step guidance on how to read various data types from the user:Integers: Using Serial.parseInt() to read integer values.Floats: Using Serial.parseFloat() to read floating-point numbers.Strings: Using Serial.readString() to read strings.

  4. Implementing a While Loop for Waiting on User Input: Explanation of how to implement a while loop to wait for user input, ensuring the program does not proceed until the user has entered the required data.

  5. Error Handling with Serial Input: Tips on handling errors related to incorrect data types and ensuring the serial monitor is set to ‘No line ending’ to prevent additional characters from being read as input.

  6. Practical Application and Example Code: An example project where the user is asked for a number, a float, and a string, demonstrating how to capture and use these inputs effectively. The provided code shows how to ask for input, wait for it, and then read and process the input.

  7. Homework Assignment: creating a program that asks the user for a brightness level (between 0 and 255) for an LED and then sets the LED brightness accordingly.

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