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Table of Contents
TalTech Arduino Laboratory Hardware Reference
This page provides an overview of the hardware components and modules used in the TalTech Arduino Laboratory. The aim is to familiarize students with the tools and sensors they will interact with during hands-on exercises.
1. Arduino Boards
The laboratory uses Arduino Uno R3-compatible microcontroller boards, featuring:
- ATmega328P microcontroller (16 MHz)
- 14 digital I/O pins (6 with PWM output)
- 6 analog input pins
- USB-B interface for programming and serial communication
- Operating voltage: 5V
2. Breadboard and Power Supply
Students will use a standard 830-point breadboard and either:
- USB power from the Arduino (5V)
- External regulated 5V DC adapter
3. Core Sensors and Actuators
| Component | Description |
| —————— | ———————————————- |
| LCD 16×2 (I2C) | Alphanumeric display module with I2C backpack |
| Servo motor (SG90) | 180° micro servo motor, 5V operation |
| DC motor (TT Motor) | Low voltage brushed DC motor (3–6V) |
| Thermistor (NTC 10k) | Analog temperature sensor (resistance-based) |
| Potentiometer | 10kΩ adjustable resistor for analog input |
| Push buttons | Momentary contact switches for digital input |
| RGB LED (common cathode) | Controlled via PWM (R, G, B channels) |
4. Additional Modules
- L298N motor driver module for controlling DC motors
- I2C bus pull-up resistors (4.7kΩ typical)
- Resistor packs (220Ω, 10kΩ, etc.)
- Capacitors, jumper wires, and headers
5. Tools and Debugging Aids
- Serial Monitor via Arduino IDE
- Oscilloscope and multimeter access (in lab)
- Code debugging via LED indicators and serial prints
6. Notes
- All components should be connected only when the board is powered off
- Avoid drawing more than 500mA from the 5V USB line
- For motors and high-current components, use external power and common ground
For specific examples and circuit diagrams, refer to the corresponding component subpages (e.g., lcd, dc_motor, servo_motor, thermistor).
