Specifications:

• Microcontroller: ATmega328P-AU
• Operating Voltage (Logic Level): 5V
• Analog Input Ports: 8 (A0 ~ A7)
• Digital I/O Ports: 14 (6 provide PWM output, including TX and RX)
• Serial Ports: 1 pair of TTL level RX/TX transceivers
• Flash Memory: 32 KB (ATmega328P, including 0.5 KB used by bootloader)
• Clock Speed: 16 MHz
• Power Supply Options:
  • Mini-USB connection
  • 6-20V unregulated external power supply (pin 30)
  • 5V regulated external power supply (pin 27)
• Dimensions: 43 mm × 18 mm
• Reset Switch: Manual reset switch for convenience

Key Features:

1. Compact Size:

   • Perfect for small-scale projects requiring a reduced footprint.

2. Versatile Power Options:

   • Supports power through USB, external DC power supply, or a 9V battery.

3. PWM and Analog Support:

   • Features 6 PWM-enabled digital pins and 8 analog inputs for flexibility.

4. Integrated Bootloader:

   • Allows for easy programming without requiring an external programmer.

5. CH340 USB-to-Serial Interface:

   • Reliable and cost-effective USB communication (requires CH340 driver for some systems).

6. Breadboard-Friendly Design:

   • Standard 0.1” DIP spacing makes it easy to integrate into breadboard setups.

7. Automatic Reset:

   • Simplifies program uploads by automatically resetting during downloads.

Applications:

• Embedded systems and IoT devices
• Robotics and automation projects
• Wearable technology
• Data acquisition and monitoring
• Compact educational tools for learning electronics and programming

Package Includes:

1 × Nano CH340 Chip Board without USB Cable (Soldered)

Important Notes:

• Driver Installation: Ensure CH340 drivers are installed for compatibility with your PC/Laptop.
• USB Cable Not Included: A mini-USB cable must be procured separately.

This Nano CH340 board is an excellent choice for hobbyists and developers working on space-constrained projects while still needing the full power and versatility of the Arduino ecosystem.