This is an old revision of the document!
Published 27 Oct 2026
Uno R3 (clone)
| Module Description | |
|---|---|
| Model | Uno R3 |
| Manufacturer | made in China |
| Brand | - |
| Clone of | Arduino Uno R3 |
| Description | Standard Uno |
| USB-to-serial chip | Atmel Mega16U2 |
| Voltage | 5V |
Overview
This is a no-name Arduino Uno R3 clone with the ATmega16U2 used as USB-to-serial interface as in the genuine Uno, rather than the cheaper alternatives used in lots of clones. So perhaps a slightly better build quality than the average clone.
Features
- Microcontroller: ATmega328P
- Clock Speed: 16 MHz ceramic resonator
- 14 digital input/output pins (6 can be PWM outputs)
- 6 analog inputs
- Operating Voltage: 5V
- Input Voltage: 7-12V
- 3.3V Power Out: up to 50 mA
- I/O Pin Out: up to 20 mA
- Digital I/O Pins: 14 (6 support PWM output)
- Analog Input Pins: 6 (with 10-bit resolution)
- Flash Memory: 32 kB (2kB used by bootloader)
- SRAM: 2 kB
- EEPROM: 1 KB
- Serial I/O: 4 UARTs, one SPI and one I2C interface
Schematics
Examples
References and Additional Resources
1)
from https://web.archive.org/web/20171110175921if_/http://www.pighixxx.com/test/wp-content/uploads/2014/11/uno.png CCBYSA Alberto Piganti
2)
from https://docs.arduino.cc/resources/schematics/A000066-schematics.pdf CCBYSA Arduino.cc
3)
from https://www.arduino.cc/en/uploads/Main/ArduinoUno_R3_Front.jpg CCBYSA Arduino.cc
electronic/boards/arduino/unoclone1.1793164915.txt.gz · Last modified: 2026/10/28 05:21 by tony
Except where otherwise noted, content on this wiki is licensed under the following license: CC Attribution-Share Alike 4.0 International