Free Course Image Arduino for Beginners

Free online courseArduino for Beginners

Duration of the online course: 9 hours and 53 minutes

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Build real Arduino skills fast with this free online course—write sketches, wire components, and control LEDs, displays, sensors, and relays. Certificate-ready.

In this free course, learn about

  • Arduino course roadmap, helpful prerequisites, and the Uno board ecosystem
  • Arduino Uno hardware/software setup; USB interface for uploading and Serial Monitor use
  • Arduino IDE features; using Serial.print vs Serial.println for serial output
  • Number systems basics: hex↔binary conversion and binary-to-decimal interpretation (e.g., 1010=10)
  • Digital I/O fundamentals: pinMode, digitalWrite, digitalRead; onboard LED pin (typically D13)
  • Blink sketch and timing basics; using delay(1000) for a 1-second pause
  • Pulse Width Modulation (PWM) concepts and generating PWM to dim an LED
  • 7-segment display operation, wiring, and showing digits with Arduino
  • Multiplexing 2-digit 7-seg displays: shared segments, digit enables, and why multiplexing is used
  • 16x2 LCD working principle and using the LiquidCrystal library to display text
  • Driving 16x2 LCD without a library in 8-bit and 4-bit modes; required OUTPUT pins in 4-bit mode
  • LCD contrast control: wiring a potentiometer wiper to the VO (V0) contrast pin
  • Input device logic: pull-up/pull-down resistors; wiring buttons with INPUT_PULLUP (no externals)
  • Interfacing sensors and actuators: IR proximity sensor input mode and relay control for AC loads safely

Course Description

Step into robotics and embedded programming by learning how to make a microcontroller interact with the real world. This free online course is designed for beginners who want practical confidence with Arduino—from your first connection to a computer to building small projects that read inputs and drive outputs. You will learn how to move from curiosity to capability by understanding both the hardware you wire and the code you upload.

You will get comfortable with the Arduino development workflow, including using the IDE, sending information through the Serial Monitor, and writing clear logic using timing and core functions. Along the way, you will strengthen the foundational concepts that make electronics easier to reason about, such as number systems, digital patterns, and the idea of turning code into predictable behavior on pins.

Hands-on practice is central. You will start with classic experiments like blinking and dimming LEDs using Pulse Width Modulation, then progress to outputs that feel more like real devices. Learn to display information with 7-segment displays, understand multiplexing to efficiently handle multiple digits, and control text output using a 16x2 LCD. You will also explore different LCD interfacing approaches, including working with and without libraries, so you understand what happens behind the scenes.

On the input side, you will learn reliable techniques to read pushbuttons and sensors using pull-up and pull-down logic to avoid unstable readings. By the end, you will be prepared to connect and read devices like IR proximity sensors, creating the foundation for responsive robotics projects.

Finally, you will bridge the gap from low-power circuits to real-world control by understanding relays and using Arduino to switch higher-power loads safely. With these skills, you will be ready to prototype automation ideas, robotics subsystems, and sensor-driven applications—building a strong base for more advanced electronics, drones, and embedded systems projects.

Course content

  • Video class: Introduction to Arduino Beginner Course | Syllabus explained | What you will learn..?

    03m

  • Exercise: Which prior knowledge is helpful but not mandatory for beginners in an Arduino course?

  • Video class: Hardware and Software used in this Arduino Beginner Programming Course

    03m

  • Exercise: Which interface on Arduino Uno is used to connect to a PC for uploading programs and using the Serial Monitor

  • Video class: Features of Arduino IDE Explained | Arduino Beginner Course

    15m

  • Exercise: Which Arduino function sends data to the Serial Monitor without adding a new line at the end

  • Video class: Hexadecimal to Binary

    08m

  • Exercise: In Arduino digital logic, what decimal number does the binary pattern 1010 represent

  • Video class: Blinking an LED with Arduino - Arduino for Beginners Tutorial ( Arduino Beginner Course )

    10m

  • Exercise: Which Arduino Uno pin typically controls the onboard LED used in the Blink example?

  • Video class: What is Pulse Width Modulation? How to generate PWM signal ? Pulse Width Modulation Explained

    06m

  • Video class: LED dimmer using PWM in Arduino | Arduino Beginner Course

    08m

  • Exercise: How do you connect an Arduino Uno to your computer for uploading sketches?

  • Video class: 7 Segment Display Working Explained

    10m

  • Video class: Interfacing 7segment Display with Arduino | Arduino Beginner Course

    23m

  • Exercise: How do you upload a sketch to an Arduino Uno from a PC

  • Video class: 7 Segment Display's Multiplexing Technique Explained

    10m

  • Exercise: On an Arduino, how do you correctly multiplex two common-cathode 7-segment displays that share segment pins to show 12?

  • Video class: Displaying Numbers on 2 Digit 7segment [Multiplexing] with Arduino | Arduino Beginner Course

    14m

  • Exercise: Why multiplex two 7-segment displays with Arduino when showing a two-digit number?

  • Video class: 16x2 LCD Working principle explained

    05m

  • Video class: Interfacing 16x2 LCD with Arduino | LiquidCrystal Library Explained Completely

    22m

  • Exercise: Which Arduino function creates a 1 second pause in code execution?

  • Video class: Interfacing 16x2 LCD with Arduino in 8 Bit Mode | No Library Required

    19m

  • Exercise: When interfacing a 16x2 LCD in 4-bit mode with Arduino, which pins should be set as OUTPUT using pinMode

  • Video class: Interfacing 16x2 LCD with Arduino in 4 Bit Mode | No Library Required

    10m

  • Exercise: Which LCD pin should the potentiometer wiper connect to for contrast adjustment on a 16x2 LCD with Arduino

  • Video class: Input devices working logics explained | Pull-up and Pull-down

    04m

  • Video class: Interfacing Pushbuttons with Arduino | English

    12m

  • Exercise: Best way to wire and read a push button on Arduino without external resistors

  • Video class: Interfacing IR sensor with Arduino | Infrared Sensor | English

    09m

  • Exercise: Which pinMode should you use to read a digital IR proximity sensor reliably and avoid a floating input?

  • Video class: Relay working principle explained

    13m

  • Exercise: Controlling a 110 V AC lamp with Arduino

  • Video class: Interfacing Relays with Arduino | Control High Power devices with Arduino Uno

    08m

  • Exercise: Reading a push button on Arduino Uno

This free course includes:

9 hours and 53 minutes of online video course

Digital certificate of course completion (Free)

Exercises to train your knowledge

100% free, from content to certificate

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Course comments: Arduino for Beginners

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