Compatible Arduino Nano CH340 Unsoldered
Compatible Arduino Nano CH340 Unsoldered
Compatible Arduino Nano CH340 Unsoldered
Compatible Arduino Nano CH340 Unsoldered
Compatible Arduino Nano CH340 Unsoldered
Compatible Arduino Nano CH340 Unsoldered
Compatible Arduino Nano CH340 Unsoldered
Compatible Arduino Nano CH340 Unsoldered

Compatible Arduino Nano CH340 Unsoldered

Arduino Compatible Boards
ARD024
Part.No: AA237
€8.95
Out of Stock

The Compatible Arduino Nano CH340 Unsoldered is an ultra-compact board (44.5×18mm) functionally identical to the Arduino Nano — ATmega328P @ 16MHz, 8 analog inputs, 14 digital I/O — without pre-soldered headers for maximum installation flexibility in custom PCBs or enclosures.

  • 📐 44.5×18mm, 5g — ultra-compact for embedded projects
  • ⚙️ ATmega328P @ 16MHz, 32kB Flash, 8 analog inputs, 6 PWM, Mini-USB
  • 🔧 Headers included — soldering required
  • ⚠️ Not a genuine Arduino Nano. Genuine Nano here.

 

Compatible Arduino Nano CH340 Unsoldered — Compact, Flexible, Ready to Solder

⚠️ Important Note: This board is compatible with the Arduino Nano but is not a genuine Arduino board. For the official genuine board choose the Arduino Nano (A000005).

The Compatible Arduino Nano CH340 Unsoldered (SKU: AA237) is functionally identical to the Arduino Nano: ATmega328P @ 16MHz, 8 analog inputs, 14 digital I/O (6 PWM) on an ultra-compact 44.5×18mm PCB weighing just 5g. The Unsoldered version means the pin headers are included but not pre-soldered — you solder them yourself, choosing straight, angled, female headers, or soldering directly onto a custom PCB with no headers at all.

Technical Specifications

Feature Specification
Microcontroller ATmega328P-AU (SMD)
USB-to-Serial Chip CH340G (driver installation required)
Operating Voltage 5V
Input Voltage 5–12V DC (external) / USB / 9V battery
Clock Speed 16 MHz
Flash / SRAM / EEPROM 32 kB (0.5kB bootloader) / 2 kB / 1 kB
Digital I/O Pins 14 — TX, RX, D2–D13 (6 PWM: D3,D5,D6,D9,D10,D11)
Analog Input Pins 8 (A0–A7)
USB Connector Mini-USB
Headers Included — soldering required
Colour / Dimensions / Weight Blue · 44.5×18×7.3mm · 5g

Which Nano version should I choose?

Unsoldered CH340
(this version)		 Compatible with Headers Compatible USB-C Genuine Arduino Nano
Headers Unsoldered Soldered ✓ Soldered ✓ Soldered ✓
USB Connector Mini-USB Mini-USB USB-C Mini-USB
USB Chip CH340G CH340G CH340C ATmega16U2
Driver required Yes Yes Yes No (plug & play)
Instant breadboard use ✗ (soldering needed) ✓ ✓ ✓
Official Arduino ✗ ✗ ✗ ✓
Best for Custom PCB, header flexibility Breadboard, beginners Modern USB-C cable Official support

Who is it for?

  • Makers & embedded engineers: Ideal for embedding in custom PCBs or enclosures — you choose your header type or solder directly. The ultra-compact size (44.5×18mm) makes it perfect for wearables and space-constrained projects.
  • Bulk prototypers: The unsoldered version offers flexibility for different mounting configurations at lower cost. Ideal for bulk purchase for labs with soldering capability. Pairs with sensors and modules.
  • Students with basic soldering skills: Soldering headers onto a Nano is one of the easiest soldering tasks — great practice. If you don't have a soldering iron, choose the Compatible Nano with Headers or the genuine Nano.

See Also

Frequently Asked Questions

Do I need to solder the headers to use this board?
Yes. The Unsoldered version includes headers but you need a soldering iron to fit them. If you don't have a soldering iron, choose the Compatible Nano with Headers (Mini-USB) or the USB-C version with Headers.

Does the CH340G chip require a driver?
Yes. The CH340G requires a driver (free, available for Windows/macOS/Linux). Once installed, select in Arduino IDE: Board → "Arduino Nano", Processor → "ATmega328P".

What is the difference between this version and the Compatible Nano USB-C?
The Compatible Nano USB-C has a modern USB-C connector (same cable as your smartphone or laptop), comes with pre-soldered headers, and uses the CH340C chip. This version (AA237) has Mini-USB and is unsoldered — the choice depends on your preferred USB type and whether you want to solder the headers yourself.

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