Elecrow
Elecrow UNO R3 Board ATmega328P ATMEGA16U2 with USB Cable for Arduino
An Arduino UNO R3 compatible development board from Elecrow, built around the ATmega328P microcontroller with an ATmega16U2 for USB communication. Fully comp...
An Arduino UNO R3 compatible development board from Elecrow, built around the ATmega328P microcontroller with an ATmega16U2 for USB communication. Fully compatible with the Arduino IDE and the vast ecosystem of Arduino shields, libraries, and tutorials — a great starting point for learning electronics and programming.
The ATmega16U2 USB interface provides reliable, native USB communication (no third-party drivers needed on most systems). A USB cable is included so you can start programming right out of the box.
Key Features
- ATmega328P Microcontroller – 16MHz clock, 32KB flash, 2KB SRAM, 1KB EEPROM
- ATmega16U2 USB Interface – Native USB communication, no FTDI chip
- 14 Digital I/O Pins – 6 with PWM output
- 6 Analog Inputs – 10-bit ADC resolution
- USB Cable Included – Ready to program out of the box
- Arduino IDE Compatible – Works with all standard Arduino libraries and shields
- 5V Operating Voltage – 7–12V recommended input voltage
Ideal For
- Learning electronics and programming
- Prototyping with Arduino shields and sensors
- STEM education and classroom projects
- Hobbyist and maker projects
Package Contents
- 1× Elecrow UNO R3 Board (ATmega328P + ATmega16U2)
- 1× USB cable
Jargon buster
Plain-language definitions for the technical terms used above.
- ADC
- An analogue-to-digital converter reads a changing voltage and turns it into a number the microcontroller can use. It matters when connecting analogue sensors such as light, sound, or variable-resistor sensors.
- 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.
- EEPROM
- A type of non-volatile memory that keeps stored data even when power is turned off. In a sensor module, it can be used to store settings or calibration data so they do not need to be re-entered every time.
- IDE
- Short for Integrated Development Environment, a program used to write, run and manage code. It matters because some learners prefer a traditional coding workspace instead of a guided notebook-style lesson.
- 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.
- native USB
- Native USB means the microcontroller itself handles USB communication, rather than using a separate USB-to-serial chip. This matters for programming, debugging, and projects that need the board to act directly as a USB device.
- 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.
- SRAM
- Fast temporary memory used by a processor while a program is running. More SRAM helps with projects that handle larger data buffers, networking, displays, or more complex code.
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