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Description
R3 Nano Atmega328P Pin Soldered | Unsoldered (Compatible with Arduino)
The R3 Nano Atmega328P is a compact, Arduino-compatible development board based on the ATmega328P microcontroller. It's commonly used for projects that require small-sized, low-power consumption boards.
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TTL Level Serial Transceiver Ports (RX/TX):
- One pair of serial communication pins for receiving (RX) and transmitting (TX) data at TTL (Transistor-Transistor Logic) level. These are used for serial communication with a PC or other devices.
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Microcontroller (MCU):
- Atmel ATmega328P-AU: A highly popular and efficient microcontroller based on the AVR architecture, which powers the board.
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Pre-installed Bootloader:
- The board comes with a pre-loaded bootloader (often Arduino's Optiboot), allowing you to upload programs via USB without the need for an external programmer.
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USB Download and Power Support:
- You can program the board and power it through a USB connection. This supports USB power input, typically 5V.
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External Power Supply Support (5V to 12V DC):
- The Nano can also be powered externally through the Vin pin (7V to 12V) or a regulated 5V through the 5V pin.
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9V Battery Power Support:
- The board supports a 9V battery power option, typically via the Vin pin.
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ISP Download Support:
- You can program the board using In-System Programming (ISP) via the ICSP header. This is useful for burning the bootloader or for programming the board without USB.
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Automatic Reset During Program Download:
- The Nano board will automatically reset when you start downloading a new program, eliminating the need for manual intervention.
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Status LEDs:
- Blue LED (Power OK): Indicates that the board is powered correctly.
- Green LED (TX): Lights up when data is being transmitted.
- Red LED (RX): Lights up when data is being received.
- Orange LED (L): Connected to digital pin 13 and useful for quick status indicators or diagnostics.
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+5V to AREF Jumper:
- A jumper allows selecting between 5V or an external reference voltage for the Analog Reference (AREF) pin, enabling more control over analog input resolution.
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Auto-Sensing/Switching Power Input:
- The board can auto-switch between power sources (USB or external power) depending on which one is available.
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ICSP Header for Direct Program Download:
- A 6-pin ICSP header allows for direct programming using an external programmer, handy for bootloader burning or bypassing the USB interface.
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Standard 0.1” Spacing DIP (Breadboard-Friendly):
- The pins are arranged in a standard 0.1" spacing, making the board compatible with most breadboards for easy prototyping.
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Manual Reset Switch:
- A reset button is available on the board for manually resetting the microcontroller.
