Welcome to Hobitronics' Beginner Arduino Project Series – your perfect starting point for learning the fundamentals of electronics and coding. This repository contains five simple and engaging Arduino projects that teach core concepts such as digital I/O, analog sensors, conditionals, and serial monitoring.
Each project includes code, circuit diagrams, and clear learning outcomes.
| No. | Project Title | Description |
|---|---|---|
| 1. | Blinking an LED | The classic first Arduino project to learn digital output and timing. |
| 2. | Button-Controlled LED | Control an LED using user input with a push button. |
| 3. | Traffic Light System | Simulate a basic traffic light sequence using three LEDs. |
| 4. | Temperature Monitor using LM35 | Read and convert analog temperature sensor data. |
| 5. | Light-Controlled LED using LDR | Automate lighting using light levels detected by an LDR. |
Skills: Digital output, delay functions, Arduino IDE basics.
Components:
- Arduino UNO
- LED (any color)
- 220Ω Resistor
- Breadboard + Jumper Wires
Applications:
- Debug indicators
- Signal flashes
- Intro to code timing logic
Skills: Digital input reading, pull-down resistor setup, if-else conditions.
Components:
- Arduino UNO
- Push Button
- LED
- 220Ω and 10kΩ Resistors
- Breadboard + Jumper Wires
Applications:
- User-triggered actions
- Control logic
- Basic automation
Skills: Sequencing LEDs, delay loops, simulating real-world logic.
Components:
- Arduino UNO
- Red, Yellow, Green LEDs
- 3 × 220Ω Resistors
- Breadboard + Jumper Wires
Applications:
- Traffic simulation
- LED pattern learning
- Automation prototypes
Skills: Analog input, voltage-to-temperature conversion, serial output.
Components:
- Arduino UNO
- LM35 Temperature Sensor
- Breadboard + Jumper Wires
Applications:
- Room temperature logging
- Environmental monitoring
- Intro to analog sensors
Skills: Voltage divider circuits, analog thresholding, light-based control.
Components:
- Arduino UNO
- LDR (Photoresistor)
- 10kΩ Resistor (for divider)
- LED + 220Ω Resistor
- Breadboard + Jumper Wires
Applications:
- Automatic night lamps
- Smart lighting systems
- Sensor-based automation
- Basics of digital and analog I/O with Arduino
- Using conditionals to control hardware
- Reading sensors and interpreting data
- Working with resistors, buttons, and LEDs
- Monitoring output via the Serial Monitor
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