Nano Board R3 with CH340 Chip Mini-USB Port compatible with Arduino (Unsoldered)

(17 customer reviews)

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Approx Restocking Date: 25 to 30 Days
SKU: 30888
  1. Operating Voltage (logic level): 5V
  2. 8 analog inputs ports: A0 ~ A7
  3. Input Port: USB MINI
  4. Using Atmel Atmega328P-AU MCU
  5. Standard 0.1” spacing DIP (breadboard friendly).


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Brand: Generic
Category: Boards Compatible with Arduino
Tags: Arduino, Arduino Nano, Nano, Microcontroller, CH340, Arduino Nano R3, ATmega328

The Nano Board R3 with CH340 chip without USB Cable chipboard is based on the famous Arduino platform and does all the functions of Uno, but with a smaller footprint. The Nano Board R3 with CH340 chip without USB Cable is vital for your small project where you don’t need much of pin-outs but the small size is very important to make it look good.

This Nano equips a low-cost MINI USB-Serial Chip that makes it less in price than Nano with FTDI USB-Serial Chip used on older versions of Arduino Nano.

The Nano Arduino is a small, complete, and breadboard-friendly board based on the ATmega328 (Nano R3). It has more or less the same functionality of the Uno but in a different package. It lacks only a DC power jack and works with a Mini-B USB cable instead of a standard one.

The Nano can be powered via the mini-USB connection, 6-20V unregulated external power supply (pin 30), or 5V regulated external power supply (pin 27). The power source is automatically selected to the highest voltage source.

The size of Nano V3.0 with CH340 Chip is only 43 mm x 18 mm; it comes with 6 PWM I/O from a total of 14 digitals I/O, 8 analog inputs, 16Mhz clock speed, and 32kB of flash memory.

  1. CH340 chip might not work directly with some PC/Laptop, you will need some ch340 drivers.
  2. This board comes with OLD BOOTLOADER buy it accordingly

Features :

  1. 1 pair of TTL level serial transceiver ports RX / TX
  2. Using Atmel Atmega328P-AU MCU
  3. There is a bootloader installed in it
  4. Support USB download and Power
  5. Support for external 5V ~ 12V DC power supply
  6. It Supports power supply by a 9V battery
  7. Support ISP download
  8. Automatic reset during program download.
  9. Power OK blue LED on the bottom.
  10. Green (TX), red (RX), and orange (L) LED.
  11. +5V to AREF jumper.
  12. Auto-sensing/switching power input.
  13. Small mini-B USB for programming and serial monitor.
  14. ICSP header for direct program download.
  15. Standard 0.1” spacing DIP (breadboard friendly).
  16. Manual reset switch.

Package Includes :

1 x Nano Board R3 with CH340 Chip Mini-USB Port compatible with Arduino (Unsoldered)

Input Voltage (V)

7 to 12

Digital I/O Pins


Analog I/O Pins


DC Current per I/O Pin (mA)


Input Port


Flash Memory

32 KB




1 KB

Clock Speed

16 MHz

Weight (g)


PCB Size ( L x W ) mm

43 x 18

Shipping Weight 0.01 kg
Shipping Dimensions 6 × 5 × 3 cm
15 Days Warranty

This item is covered with a standard warranty of 15 days from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Robu customers from any kind of manufacturing defects.  Reimbursement or replacement will be done against manufacturing defects.

What voids warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

Based on 17 reviews

4.7 overall

Add a review

  1. Utkarsh Maurya (verified owner)

    good quality product.worked for my project thq

    Utkarsh Maurya

  2. ajay36049 (verified owner)

    Good product, did soldering myself and it is working fine as of date. No problem in uploading Arduino ide, though has old bootlogger.


  3. nabadeep (verified owner)

    Product is worked fine with USB cable. But when I use DC power source and connect with LM2596 output voltage adjust around 7v and power up to nano board VIN and GND pin then my nano board is burnt.


  4. saarkaarnikhil (verified owner)

    Good product


  5. darapuharikamalakar (verified owner)

    Good but it’s an old bootloader


  6. bittusikdar100 (verified owner)

    Overall good but, my nano has ATmega328P U-TH microcontroller not ATmega328P-AU one.


  7. rajamagnet2011 (verified owner)

    perfectly all right


  8. VIJAY K (verified owner)

    Good product. Worked with old boot loader. Thanks


  9. argawas (verified owner)

    very good


  10. sudanthiram (verified owner)

    Working fine




  12. sundar (verified owner)



  13. Shishir tyagi (verified owner)

    good and genuine product. Working fine for me.

    Shishir tyagi


    I am using the soldered version & I will say that it’s quality is very nice.


  15. Zuhair Khatri (verified owner)

    Genuine and good quality board

    Zuhair Khatri

  16. Praveen (verified owner)

    Very Good Product. This price cannot be matched at all.


  17. Sai Krishna (verified owner)

    It’s an old bootloader

    Sai Krishna

Aduino Nano 3.0 Code

Manual for New Windows

Manual for Old Windows

Manual for MAC

Manual for LINUX

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Questions and answers of the customers

    I am not able to upload the code to board even aft... Read more
  1. 0 votes
    Q I am not able to upload the code to board even after selecting old boot loader. Please help error...... Read more answer now
    Asked by chavan.abhinav on August 4, 2020 11:51 am
    Answered by the admin

    For your query, drop the mail at Read more

  2. is this an adriuno nano board or just an compatibl... Read more
  3. 0 votes
    Q is this an adriuno nano board or just an compatible board? answer now
    Asked by Anonymous user on May 10, 2020 8:47 pm

    It is not an original nano board, but the firmw... Read more


    yes, It is the Arduino nano board.

Only registered users are eligible to enter questions
Country Of Origin: China

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