Arduino Projects

A collection of Arduino tutorials and mini-projects filtered by category.

AllBasicsSensorModulesDisplaysMotors

LED Blink – Starter

First steps: make an LED blink with digitalWrite.

LED Fade – PWM Intro

Control LED brightness using analogWrite (PWM).

Interfacing LDR Light Sensor with Arduino

Measure ambient light intensity using an LDR and Arduino.

Interfacing LM35 Temperature Sensor with Arduino

Read accurate analog temperature values using the LM35 sensor and Arduino.

Interfacing Capacitive Soil Moisture Sensor with Arduino

Monitor soil moisture levels using a capacitive sensor for smart plant watering.

Ultrasonic Distance Measurement with HC-SR04

Measure distance accurately using the HC-SR04 ultrasonic sensor and Arduino.

Interfacing DHT11 Temperature and Humidity Sensor

Read temperature and humidity values using the DHT11 sensor and Arduino.

IR Obstacle Detection using Arduino

Detect nearby obstacles using an infrared obstacle detection sensor.

How MQ-2 Gas Sensor Works with Arduino

Detect smoke and combustible gases using the MQ-2 gas sensor and Arduino.

Configuring HC-05 Bluetooth Module Using AT Commands

Configure HC-05 Bluetooth settings like name, baud rate, and role using AT commands.

Interfacing MAX7219 LED Dot Matrix Display

Display scrolling text and patterns using the MAX7219 LED dot matrix module.

Interfacing TM1637 4-Digit 7-Segment Display

Control a 4-digit 7-segment display using the TM1637 module and Arduino.