Arduino for Beginners - (Complete Course From Scratch)

Practice converting binary data to hexadecimal and back, learn byte and nibble structure, and use 0x notation to map binary, hexadecimal, and decimal values with a conversion table.

Learn to blink an LED with Arduino by configuring a pin as output and toggling it high and low with one-second delays. The lesson demonstrates both onboard and external LEDs.

Understand the working principle of seven-segment displays, including common cathode and common anode types, with segment pins a–g and the dot, and drive digits 0–9 from a microcontroller.

Interface a seven-segment display with an Arduino by wiring pins as outputs and decoding hex data to print digits 0–9 with a one-second interval.

Interfacing a 16x2 LCD with an Arduino in 8-bit mode without an inbuilt library, defining pins, creating print and command functions, and displaying two strings on the two LCD rows.

Learn how to interface a 16x2 LCD with a microcontroller in four-bit mode, covering command and data functions, wiring, and the four-bit data transfer process.

Interface a 16x2 lcd with a development board in four-bit mode without inbuilt libraries, transferring data in two 4-bit steps and printing text on the first and second rows.

Explore how switches interface with a microcontroller using pulldown and pull-up logics, with a 10k resistor example showing input states on button press and release.

Learn to interface a pushbutton with an Arduino, wiring the LED to pin 7 and the button to pin 8 using pulldown resistor logic.

Discover how relays use electromagnetic switches to control 230-volt loads from low-power signals. Understand normally open/closed contacts, coil, and flyback diode protection.

Learn to interface a relay with an Arduino to control 230 V lighting appliances, using digital pins 7 and 8, pull-down logic, and a separate power supply.