• 10-100 Pieces
    US $2.53
  • 101-500 Pieces
    US $2.46
  • 501-1000 Pieces
    US $2.42
  • >=1001 Pieces
    US $2.38
UNO R3 CH340G 001
Electrostatic bag
Model Number:
Drive IC
Brand Name:
Place of Origin:
Guangdong, China (Mainland)
Input Voltage (recommended):
Digital IO pins:
14 (of which 6 provide PWM output)
Analog input pins:
DC Current per I/O Pin:
40 mA
2 KB (ATmega328)
Clock Speed:
16 MHz
Operating voltage:
Input Voltage (limits):
PWM channel:
Selling Units:
Single item
Single package size:
13X10X3 cm
Single gross weight:
0.067 KG
Package Type:
gift box
Lead Time:
Quantity(Piece) 1 – 200 201 – 3000 3001 – 10000 >10000
Est. Time(day) 2 3 4 To be negotiated

For arduinos SMD UNO R3 Microcontroller board from Chipman


SMD UNO R3 control board specifications:


1. Microcontroller: CH340G
2. Operating Voltage: 5V
3. Input Voltage: (limits)6-20V
4. Digital I/O Pins:14 (of which 6 provide PWM output)
5. Analog Input Pins: 6
6. DC Current per I/O Pin: 40 mA
7. DC Current for 3.3V Pin: 50 mA
8. SRAM: 2KB (ATmega328)EEPROM1 KB (ATmega328)
9. Clock Speed: 16 MHz
10. Flash Memory: 32 KB


Competitive Advantage:


1. Convenient & Friendly Customer Service
2. Low Prices Direct From Factory Suppliers
3. Fast Delivery Around The Globe. 
4. High Quality With Global Standards. 
5. 3 year factory warranty
6. Safe shipping way and payment


SMD UNO R3 Description:


Pin changes plus two I2C pins (SDA and SCL: next to the AREF pin, the Analog 4 and 5 copy, not the additional I2C interface), added two pins, the RESET next one is IOREF, , allowing the expansion board to adapt to on-board voltage, this pin is just told to expand the board’s current on-board voltage (such as UNO is 5V, the power supply pin can be seen as copy, does not provide the level pull-up), and the other is after inactive place holder pins.



Product Photo

UNO R3 (logo)-4.jpgUNO R3 (logo)-2.jpgUNO R3 (logo)-3.jpg

Best service from Chipman


1.Enough stock with 3000pcs supply ability per day


2.Professional agent for Aspire ensure 100% Original


3.best price same with the factory


4. Samples can offer to you for reference


5.Faster delivery time after payment


6. Best Quality and Best Service for any orders. No matter big or small orders.


How to order?    


1. Please tell me the Models/quantity/colors you want to order by sending me an inquiry or chat online;


2. We will make a performa invoice for your confirmation;


3. We will deliver the goods ASAP after we receive your payment.


Shipping & Payment


small order will send surpported by DHL/UPS/FEDEX/TNT/ARAMEX/EMS , 

Big order we will send by air or sea, you can choose your own shipping agent or ours.
all sample will be charged here, and if you order over pcs in the future ,we will back the sample fee to you then.



Paypal,Western Union,T/T,etc



1.Q:Are you a trade company or Factory ?
A:We are a company ,and we have our own factory.

2.Q:Can I get a discount ?

Sure,for a big order and frequent customers ,we will get a reasonable Discount.

3.Q:How can I know your latest product?

We will regularly tell you our new products.

4.Q: Why choose us? 

High quality and factory price

5.Q:Do I need to come to your factory to order?
A:No, you do not need to come here. We can do everything through email, phone and post. But welcome to visit our office and factory.


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