Kindly Morrow
Arduino Uno R3 Starter Kit
Wire up your first circuit in under ten minutes. The Arduino Uno R3 gives you a 16MHz ATmega328P, 14 digital I/O pins, and a USB connection your computer recognizes instantly. Real hardware control starts here.
The Uno R3 runs at 5V logic, making it forgiving for beginners and compatible with the widest range of shields and breakout boards on the market. Every component in this kit is chosen to match the most common beginner projects without leaving you hunting for extras. You get a full breadboard, jumper wires, resistors, LEDs, a photoresistor, NTC thermistor, button switches, and a piezo buzzer.
Things to build with this
- Photoresistor-controlled LED dimmer: use analogRead() on the photoresistor to map ambient light levels to a PWM duty cycle in real time, no extra hardware required
- Temperature alarm: read the NTC thermistor through the ADC, apply the Steinhart-Hart equation to convert raw voltage to Celsius, and fire the piezo buzzer when your threshold is crossed
- Morse code transmitter: type a message into the Arduino IDE serial monitor, parse it on the ATmega328P, and output simultaneous LED blinks and buzzer tones timed to standard WPM intervals
Key Features
- ATmega328P: 16MHz clock, 32KB flash, 2KB SRAM, 1KB EEPROM
- 14 digital I/O pins (6 PWM-capable) and 6 analog inputs
- USB-B connection for programming and serial monitoring via Arduino IDE
- Full-size 830-point solderless breadboard included
- Component set: LEDs, resistors (10 values), photoresistor, NTC thermistor, tactile buttons, and piezo buzzer
- Operates on 5V USB power or 7-12V via barrel jack
- Compatible with Arduino IDE, PlatformIO, and most third-party Uno shields
Frequently Asked Questions
Do I need to install anything before I can program it?
Download the free Arduino IDE from arduino.cc. The Uno R3 uses either a CH340 or ATmega16U2 USB interface chip depending on the board revision. Windows may need a CH340 driver installed manually. Mac and Linux typically detect it without one.
Is this compatible with the 5V sensor modules I already own?
Yes. The Uno R3 operates on 5V logic throughout, so standard 5V sensors wire directly to the analog or digital pins without a level shifter in between.
Can I run this without a laptop plugged in?
Yes. Connect a 7-12V DC center-positive supply to the barrel jack and the board runs standalone. A 9V wall adapter is a reliable choice.
Is this a genuine Arduino or a compatible clone?
Check the product listing for the exact manufacturer. Functionally, both genuine and compatible boards run the same IDE and compiled sketches. Genuine boards carry official Arduino branding and go through Arduino's quality testing process.
Why we stock this
Curated by Kindly Morrow. We test and vet every product before it hits the store. If we wouldn't use it in our own builds, we don't sell it.
Things to build with this
Fun projects to try once you get your hands on it.
Weather station that texts you
Hook up a temperature sensor and have it send you a Telegram message when it drops below freezing. 20 lines of MicroPython.
Garage door opener you control from bed
Wire a relay to your garage door motor and trigger it from your phone via Home Assistant. No cloud, no subscription.
Plant watering system that knows when to water
Soil moisture sensor + a small pump. Runs on a schedule or when the soil gets dry. Your plants stop dying.
Desk presence sensor for smart lighting
mmWave or PIR sensor detects when you sit down and turns on your desk lights. Turns them off when you leave. Zero effort after setup.
