Arduino Uno compatible (CH340) Development Board (HCARDU0119)

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Arduino Uno compatible (CH340) Development Board (HCARDU0119)

Post by admin » Mon Mar 14, 2022 3:56 pm


This development board is based on the common Arduino Uno R3 reference design. It is identical in specification other than it makes use of the ubiquitous CH340 USB interface IC to reduce production cost and therefore allow this board to be sold at a fraction of the cost of the standard Uno without sacrificing any of the Unos functionality. It will run any sketch designed of an Arduino Uno without requiring any modification.

Additionally, this Uno development board also includes the option of being able to add additional pins for the standard Arduino headers, I2C and power pins.


Product code:		HCARDU0119
Microcontroller: 	ATMega328p (QFP)
Operating voltage: 	5V (via USB or 5V header) or 7 to 12V via 2.1mm DC socket
Digital IO: 1		4 (of which 6 provide PWM)
Analogue inputs: 	6 (10 bit)
Digital pin current: 	40mA source/sink (100mA max per port)
3.3V DC current: 	50mA
Flash memory: 		32KB (of which 0.5KB used by bootloader)
Clock speed: 		16MHz

USB Drivers

Most modern operating systems (Windows/OSX/Linux) will support the CH340 via their automatic driver install process so in most cases adding driver support for this development board should be a simple case of plugging the board into your computer. However, if your OS does not automatically install a driver the appropriate driver can be downloaded from below:

Windows Installation Instructions

Drivers are available in the link below. Simply download and unzip them, plug in your Uno+ and when the new hardware is detected, point the wizard to the folder you just unzipped to and it should install without any problems.

Download via our forum here

Download via our github page:

MAC installation instructions

New code signed version confirmed to work with 10.12 Sierra

Older code signed version confirmed to work with El Capitan

Download the driver (you must be logged in to download)

Once downloaded, double-click the zip file to unzip it.

Run installer found in that folder.

If asked to restart, do not restart just yet.

Now restart your Mac.

Libraries, example code, and diagrams are provided as an additional free service by Hobby Components and are not sold as part of this product. We do no provide any guarantees or warranties as to their accuracy or fitness for purpose.

Descriptions and diagrams on this page are copyright Hobby Components Ltd and may not be reproduced without permission.

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