microcontroller programming Uno R3 development board

  • 1-9 Pieces
  • 10-49 Pieces
  • >=50 Pieces
- + Pieces available
0piecesselected, US $in total
View Details
Shipping fee:
Depends on the order quantity.
Lead Time:
5 day(s) after payment received
Samples: $6.00 /Piece, 1 Piece (Min. Order): Buy Samples
Contact Supplier
Samples - $6.00 /Piece, 1 Piece (Min. Order): Buy Samples
Loading... Add To Cart
Report Suspicious Activity
Quick Details
Model Number:
microcontroller programming
Brand Name:
Product Certification Verified
CE Certified.
RoHS Certified.
Valid from 2018-03-17 until 2049-12-31

Packaging & Delivery

Selling Units:
Single item
Single package size: 
20X8X8 cm
Single gross weight:
0.3 kg
Package Type:
Picture Example:
Lead Time :
Quantity(Piece) 1 - 50 >50
Est. Time(days) 5 To be negotiated
Product Description


UNO r3 original ch340G  development board
USB to serial chip
Input Voltage (recommended)
Operating voltage
Input Voltage (limits)
DC Current per I/O Pin
40 mA
DC Current for 3.3V Pin
50 mA
Digital IO pins
14 (of which 6 provide PWM output)
Analog input pins
USB Port
type B USB
Clock Speed
16 MHz
Weight Board
Weight Cable
Cable length
Pack Size
The UNO R3 differs from all preceding boards in that it does not use the FTDI USB-to-serial driver chip. Instead, it features the 16U2 (8U2 up to version R2) programmed as a USB-to-serial converter. 
1. Stitching changes: beside the AREF sutural added two I2C pins (SDA and SCL, only Analog copy of 4 and 5, are not additional I2C interface), in addition, beside the RESET also added two pins, one is IOREF, can let the extension board to board, load voltage, the stitching is tell extension board currently on-board voltage is how many (such as UNO is 5 v, can is regarded as a copy of the power pins, does not provide a level), the other one is after treated with placeholder pins.

2. The RESET circuit is more stable. RESET button position is changed, and moved to near the USB interface of voids, it is more convenient.

3. 16U2 instead of 8 u2, this does not mean that there are 16 k flash R3 can make your code run faster, the update service for the USB interface chip, it make UNO can simulate USB HID in theory, such as MIDI / Joystick / Keyboard.
More Information


Q1:Who are you?
A1: Hurryup Technology was established in 2013 with 8 year’s Alibaba Gold Supplier membership. In addition, Alibaba has granted our shop here as conducted by TÜV SÜD in Germany. Only few Alibaba shops got the credit as us.

Q2: What products can you offer?
A2: We manufacture below products:
- GPS GNSS receiver G-Mouse,
- GPS GNSS, 4G, 3G, 2G, 2.4G, 5.8G, 433MHz external and built-in antennas,
- Digital HDTV antennas,
- GPS Trackers,
- 4G, 3G, 2G modems,
- GPS GNSS, 4G, 3G, 2G Wireless Modules,
- RF coaxial connectors and RF cable assemblies.

Q3: What is your advantages?
A3: Professional sales engineering team to help you on the right products and custom design to suit your individual needs.

Q4: How’s the quality of your products?
A4: We provide you with one year warranty for our products, and our professional QA/QC team work hard to ensure the high quality of our products before shipment. 

Q5: How can I protect my transaction with your company?
A5: The transaction is secured by Alibaba Trade Assurance service who provides you with Payment, Product-quality and Shipping protection. Your order will be protected up to 30 days after you receive the goods. It supports payment by below options: