Arduino Mega R3 Board

An unsoldered Arduino Nano board is essentially an Arduino Nano that has had its header pins removed. This can be useful if you want to integrate the Nano into a custom PCB or project without the bulk of the headers. The Arduino Nano is a compact and versatile microcontroller board based on the ATmega328P or ATmega168. Here are its key features:

• Microcontroller: ATmega328P
• Operating Voltage: 5V
• Input Voltage: 7-12V (recommended)
• Digital I/O Pins: 14 (6 PWM outputs)
• Analog Input Pins: 8
• Flash Memory: 32 KB (ATmega328P), 2 KB used by bootloader
• SRAM: 2 KB
• EEPROM: 1 KB
• Clock Speed: 16 MHz
• USB: Mini-B USB connector for power and programming

Ideal for embedded projects and prototyping due to its small size and flexibility.

The Arduino Nano is a compact microcontroller board based on the ATmega328P, featuring 30 soldered male header pins for easy prototyping. This variant includes a CH340 USB-to-serial converter and a USB Type-C port, offering modern connectivity and reliable programming.
⚙️ Key Technical Details:
• Microcontroller: ATmega328P, 8-bit AVR, 16 MHz clock speed
• USB Interface: CH340G IC handles serial communication via USB Type-C
• Power Supply:
• VIN: 6–12V input
• 5V & 3.3V: Regulated outputs for peripherals
• USB VBUS: Supplies 5V when connected via Type-C
• I/O Pins:
• Digital: 14 (D0–D13), including PWM on D3, D5, D6, D9, D10, D11
• Analog: 8 (A0–A7), 10-bit ADC resolution
• Serial: UART (TX: D1, RX: D0), SPI (D10–D13), I2C (A4: SDA, A5: SCL)
• Flash Memory: 32 KB (2 KB used by bootloader)
• SRAM: 2 KB
• EEPROM: 1 KB
🔌 Type-C Connector Notes:
• Supports USB 2.0 data lines (D+/D−) routed to CH340
• VBUS and GND provide power input
• CC pins typically tied to ground via pull-down resistors for cable orientation
This Nano variant is ideal for embedded systems, sensor networks, and compact automation projects—especially where modern USB compatibility and robust serial communication are essential.