Little Bird
UNO R3 ATmega328P CH340 Development Board with USB Cable
The UNO R3 is an ATmega328P-based microcontroller board with a CH340G USB-to-serial chip, making it a reliable and affordable option for learning electronics...
The UNO R3 is an ATmega328P-based microcontroller board with a CH340G USB-to-serial chip, making it a reliable and affordable option for learning electronics and building Arduino projects. Simply connect it to your computer via the included USB cable, upload your sketch, and start creating.
With 14 digital I/O pins, 6 analog inputs, and support for both 3.3V and 5V power, this board is compatible with a wide range of shields, sensors, and modules right out of the box.
Key Features
- ATmega328P Microcontroller – Arduino UNO R3 compatible, runs standard Arduino sketches
- CH340G USB-to-Serial – Reliable USB communication with broad OS support
- 14 Digital I/O Pins – 6 with PWM output capability
- 6 Analog Input Pins – For reading sensors and variable signals
- I²C Support – Dedicated SCL and SDA pins
- 16 MHz Crystal – Standard clock speed for Arduino compatibility
- Dual Voltage Support – 3.3V and 5V outputs for flexible peripheral connections
- Multiple Power Options – USB, DC barrel jack, or battery
- ICSP Header – For direct microcontroller programming
Ideal For
- Learning electronics and Arduino programming
- Prototyping with sensors, LEDs, motors, and displays
- IoT and wireless module projects (Bluetooth, RF, GPS, GPRS)
- STEM education and maker workshops
Package Contents
- 1× UNO R3 ATmega328P CH340 development board
- 1× USB cable
Jargon buster
Plain-language definitions for the technical terms used above.
- ATmega328P
- An 8-bit microcontroller chip used on many Arduino Uno-compatible boards. Knowing the controller uses an ATmega328P helps you understand its memory, speed, pin compatibility, and the Arduino sketches it can run.
- DC barrel jack
- A round power connector commonly used for low-voltage DC power supplies, often described by its outer and inner diameters such as 5.5 x 2.1 mm. Matching the barrel size and polarity is important so the plug physically fits and powers the device correctly.
- GPS
- The US satellite navigation system used by GNSS receivers to calculate position and time. Support for GPS is important because it is widely available and often used together with other constellations for more reliable positioning.
- IoT
- Short for Internet of Things, meaning physical devices that connect to networks or the internet to send data or be controlled remotely. It matters if you want projects such as connected sensors, remote controls or classroom data-logging activities.
- microcontroller
- A microcontroller is a small computer on a chip that runs your program and controls connected inputs and outputs. For this product, it is the part that reads buttons and sensors, drives the display and speaker, and communicates over Bluetooth.
- PWM
- Pulse Width Modulation is a way for a digital pin to simulate variable output power by switching on and off very quickly. It matters for controlling things like LED brightness, motor speed, or servo-style signals from a microcontroller pin.
- RF
- RF means radio frequency, referring to signals used for wireless communication and other high-frequency electronics. A low-noise, stable power supply is important for RF circuits because power noise can affect signal quality and measurements.
Find this product in
Related Tutorials
Free guides on learn.littlebird.com.au
