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Longan Core 01


Longan Core 01 an Arduino UNO compatible board produced by Longan Labs. We will make Longan Core into a series, because this board is the first one, so we named it 01. Longan Core 01 is an ultra-low-cost development board, the price is less than half of the Arduino UNO. In addition, we use the more commonly used Type-C interface, which is more stable. In addition, we also add a button on the Longan Core 01, connected to the D2 pin, users can use this button for some simple interactions, without the need to access another button.


  • Atmega328P microcontroller with Arduino UNO Bootloader
  • CH340C Serial-USB converter
  • 20 Digital I/O Pins (6 PWM Outputs and 6 Analog Inputs)
  • Arduino UNO-R3 shield compatible
  • Type-C USB connector for programming
  • 3.⅗V system operation power switch
  • Onboard User Button (Connected to D2) and Led
  • ISP Header


Item Value
Dimensions 115x78x25mm
DC Current per I/O Pin 40mA
Barrel Jack Input 7-12V
Flash Memory 32KB
Clock 16MHz

Hardware Overview

  1. Type-C USB Connector
  2. Power level switch
  3. Barrel Jack, input 7-12V|
  4. User Button, connected to D2
  5. ICSP header
  6. Power pinout
  7. Atmega328P
  8. CH340C USB to Serial Chip
  9. Reset button

A. TX/RX indicator

Install Driver

The CH340 has beed tested on:

  • Windows 7/10
  • Mac OSX
    • v10.10.5 (Yosemite)
    • v10.11.6 (El Capitan)
    • v10.13.0 (High Sierra)
    • v10.14.5 (Mojave)
  • Linux
    • Raspbian Stretch (11-13-2018 release) for the Raspberry Pi
    • Raspbian Buster (2019-07-10 release) for the Raspberry Pi
    • Ubuntu v18.04.2, 64-bit

These operating systems have the CDC drivers pre-installed, which means you shouldn't need to install any extra software. However, there are a wide range of operating systems out there, so if you run into driver problems, you can get the archived drivers linked below:

Schematic Online Viewer