Nano V3.0 – ATmega328P Dev Board, USB-C, Unsoldered, Compatible with Arduino
$7.49 NZD
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$7.49 NZD
Nano V3.0 – ATmega328P Dev Board, USB-C, Unsoldered, Compatible with Arduino
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The Nano V3.0 in its unsoldered form — ideal for custom mounting, direct wiring, or pick-and-place assembly. Built on the ATmega328PB, an enhanced version of the classic ATmega328P that adds a second I²C bus, second SPI port, and extra timers while remaining fully compatible with the Arduino Nano IDE profile. USB-C connector with CH340G USB-to-serial. Headers included loose, so you solder them in whatever orientation your build needs.
- ATmega328PB @ 16 MHz — programs as a standard Arduino Nano
- 14 digital I/O (6 PWM) + 8 analog inputs (A0–A7)
- Dual I²C and dual SPI — 328PB bonus peripherals
- USB Type-C with CH340G — no Old Bootloader mode needed
- Unsoldered headers included for custom mounting
- 32 KB flash · 2 KB SRAM · 1 KB EEPROM · 43 × 18 mm
Getting Started
1
Solder the headers
Solder the included pin headers before breadboard use — or fit right-angle/female headers, or wire directly to the pads.
2
Install CH340 driver (Windows only)
macOS and Linux detect the board automatically. Windows may need the CH340 driver once from WCH.
3
Connect via USB-C and select the board
Use a data-capable USB-C cable. In Arduino IDE: Tools → Board → Arduino Nano, Processor: ATmega328P.
4
Upload Blink to verify
File → Examples → 01.Basics → Blink. The D13 LED blinking once per second confirms the board works.
Please note: Headers are unsoldered — soldering is required before breadboard use. The USB-C programming port works without any soldering. Standard upload works straight away; Old Bootloader mode is not needed.
Specifications
MicrocontrollerATmega328PB (8-bit AVR, enhanced)
Programs AsArduino Nano (ATmega328P profile)
USB Interface ChipCH340G USB-to-Serial
USB ConnectorType-C
Header StateUnsoldered — headers included loose
Operating Voltage5V DC
Input Voltage (Rec.)7–12V via VIN pin
Digital I/O Pins14 (6 support PWM output)
Analog Input Pins8 (A0–A7, 10-bit ADC)
DC Current per I/O Pin40 mA max
Flash Memory32 KB (2 KB used by bootloader)
SRAM2 KB
EEPROM1 KB
Clock Speed16 MHz crystal oscillator
CommunicationUART, dual SPI, dual I²C (328PB extras)
Board Dimensions43 × 18 mm
IDE CompatibilityArduino IDE — "Arduino Nano", ATmega328P
Built-in LEDD13 (user-programmable)
Reset ButtonYes
ICSP HeaderYes (6-pin AVR ISP)
Pinout Guide
D0 / D1Hardware UART RX/TX
D2 / D3External interrupts INT0 / INT1
D3, 5, 6, 9, 10, 11PWM outputs (6 pins)
D10–D13SPI0 — SS / MOSI / MISO / SCK
D13Built-in LED (LED_BUILTIN)
A0–A710-bit ADC inputs, 0–5V
A4 / A5I²C0 — SDA / SCL
A6 / A7Analog input only (no digital)
AREFExternal voltage reference
VINExternal supply input, 7–12V
5V / 3.3VRegulated outputs
GNDGround (multiple pins)
RESETActive-low reset
ATmega328PB bonus peripherals: the 328PB adds a second hardware I²C bus (I²C1), a second SPI port (SPI1), and two extra 16-bit timers (Timer3 & Timer4) — all exposed on the same physical Nano pins. It programs identically to a standard Nano, so existing sketches and libraries work without changes.
Common Uses
Permanent enclosure installs — solder headers for your connector type, or wire directly to the pads for the most compact mounting
Custom PCB integration — solder onto a carrier board, or use right-angle headers for panel-mount builds and tight enclosures
Multi-I²C sensor systems — the second I²C bus handles sensors with clashing addresses, no multiplexer needed
Robotics & servo control — drives servos, steppers and DC motors; small enough to fit inside robot chassis and RC builds
Sensors & data logging — temperature, humidity, pressure, distance and motion, with extra timers for peripheral flexibility
Education & bulk builds — cost-effective for classroom kits where students solder their own boards
Need pre-soldered? If you want a board that plugs straight into a breadboard, see the pre-soldered Nano V3 — same specs, headers already fitted.