Description
Description:
This compact Nano R3 board, based on the Arduino platform and featuring the CH340 chip, offers the functionality of an Uno in a smaller form factor. Ideal for space-constrained projects, it uses a cost-effective Mini-USB connection and ATmega328 microcontroller. This breadboard-friendly board is a budget-friendly alternative to the FTDI-equipped Nano.
The Nano board accepts a wide range of power inputs: 5V via Mini-USB or regulated supply, and 6-20V unregulated. Automatic voltage selection ensures stable operation from the highest available source.
The compact Nano V3.0 (CH340) measures just 43x18mm, offering 14 digital I/O (6 PWM), 8 analog inputs, 16MHz clock speed, and 32kB flash memory.
Specifications:
| Microcontroller | ATmega328 |
| Operating Voltage | 5VDC |
| Input Voltage | 7 to 12V |
| Digital I/O Pins | 14 |
| Analog I/O Pins | 8 |
| DC Current per I/O Pin | 40mA |
| Flash Memory | 32 KB |
| SRAM | 2 |
| EEPROM | 1 KB |
| Clock Speed | 16 MHz |
Features:
- Serial Communication: TTL RX/TX ports for easy serial data transfer.
- Atmega328P-AU MCU: Reliable Atmel microcontroller for robust performance.
- Pre-Loaded Bootloader: Simplifies code uploads via USB.
- USB Power & Programming: Convenient USB connection for power and code uploads.
- Flexible Power Options: Supports 5-12V DC, 9V battery, and USB power.
- ISP Programming: ICSP header for direct firmware programming.
- Auto-Reset: Automatic reset during code upload.
- Status LEDs: Power, TX, RX, and user-programmable LEDs for visual feedback.
- AREF Jumper: Selectable +5V reference voltage.
- Auto Power Selection: Seamless switching between power sources.
- Mini-B USB: Compact USB port for programming and serial monitoring.
- Breadboard Friendly: Standard 0.1″ DIP spacing for easy prototyping.
- Manual Reset: Dedicated reset switch for manual control.
Package Included:
1 x Nano R3 with CH340 Arduino Nano Compatible





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