Nano V3 CH340 (Arduino Nano Compatible)

Discontinued RobotDyn SKU: RD-NANO-V3-CH340
Nano V3 CH340 (Arduino Nano Compatible)

Overview

The RobotDyn Nano V3 is a direct Arduino Nano clone with two improvements:

  1. CH340G USB-serial — works without proprietary FTDI drivers (universal driver support on Windows/Mac/Linux)
  2. Micro-USB connector — more durable than the Mini-USB on classic Nanos

It’s a drop-in replacement for the original Arduino Nano with identical pinout, identical bootloader, and identical software compatibility. Every tutorial, sketch, and library for the Arduino Nano works without modification.

Why Use a Nano vs. UNO?

FeatureUNO R3Nano V3
Dimensions68 × 53 mm53 × 22 mm
Pin PitchFemale headers (non-breadboard)DIP-30 (breadboard-friendly)
Analog Inputs6 (A0–A5)8 (A0–A7)
USBType-BMicro-USB
Shield CompatibilityYes (standard UNO shields)No (different layout)

Use the Nano when you want to plug directly into a breadboard or fit into a tight enclosure.

Pinout

Standard Arduino Nano pinout. Two extra analog inputs (A6 and A7) on the inner row of pins — these are analog-input-only (cannot be used as digital I/O).

Programming

  1. Connect via Micro-USB
  2. Install CH340G driver if needed (Windows 7/older; preinstalled on Windows 10+, macOS, Linux)
  3. In Arduino IDE:
    • Tools → Board → Arduino Nano
    • Tools → Processor → ATmega328P (or ATmega328P (Old Bootloader) for some clones)
  4. Select port and upload

If uploads fail with “stk500_recv(): programmer is not responding”, try the Old Bootloader option — some RobotDyn Nanos ship with the older bootloader timing.

Common Uses

Where to Buy in 2026

Nano V3 with CH340G is among the most cloned Arduino boards in existence — you can find them for $2–3 each in bulk on AliExpress. Look for CH340G (not CH340T or CH340C — those have different driver requirements).

Documentation