Arduino Nano with CH340 (Soldered)

The Arduino Nano with CH340 chip refers to a version of the Arduino Nano that uses the CH340G USB-to-serial converter instead of the original FT232 or ATmega16U2 chips. This version is functionally equivalent to the standard Nano but uses a different and more affordable USB interface chip.

Here are key points about the Arduino Nano CH340:

Overview

• Microcontroller: ATmega328P
• USB Chip: CH340G (USB to Serial converter)
• Operating Voltage: 5V
• Input Voltage (recommended): 7–12V
• Digital I/O Pins: 14 (of which 6 provide PWM output)
• Analog Input Pins: 8
• Clock Speed: 16 MHz
• Flash Memory: 32 KB (2 KB used by bootloader)
• SRAM: 2 KB
• EEPROM: 1 KB

CH340 Driver Installation

To upload code to the Nano with a CH340 chip, your computer must have the CH340 driver installed.

• Windows: Download from official WCH website
• macOS: There are drivers for macOS, but they can sometimes be tricky. Use the official source or GitHub repositories with signed kexts for newer macOS versions.
• Linux: Usually supports CH340 out of the box.

Using with Arduino IDE

1. Install CH340 driver.
2. Open Arduino IDE.
3. Select:

• Board: "Arduino Nano"
• Processor: "ATmega328P" (or "ATmega328P (Old Bootloader)" for older models)
• Port: Choose the COM port detected after connecting the board.

Origin: China

Brand: Generic