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This is an old revision of the document!

Published 19 Oct 2026

Uno SMD clone


Uno SMD clone overview

Module Description
ModelUno SMD clone
Manufacturermade in China
Brand
Clone ofArduino Uno R3 SMD
DescriptionStandard Uno using SMD cpu
Voltage5V

Overview

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
  • 5V Power Out: up to
  • 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

Arduino UNO schematic 1)

Seems to be the same as this schematic but an MIC5205-3.3YM5 (labelled KB33 on a SOT-23-5 SMD chip) has been substituted for the LP2985-33 LDO regulator.

Examples

Uno SMD clone overview right Uno SMD clone overview left Uno SMD clone overview back

Uno SMD clone top view Uno SMD clonebottom view

Genuine Arduino Uno R3 SMD :

Genuine Arduino Uno R3 SMD top view2)

References and Additional Resources

If any referenced page no longer exists, try looking for its URL on http://archive.org.




1)
from https://www.mikrocontroller.net/attachment/258727/CH340G_UNO_ArduinoBoard_3.pdf CCBYSA
2)
from https://commons.wikimedia.org/wiki/File:Arduino_UNO_microcontroller.jpg CCBYSA Alyona Makarenko

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electronic/boards/arduino/unosmdclone.1792642385.txt.gz · Last modified: 2026/10/22 04:13 by tony
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