Elecrow
Nano 168 (Arduino Compatible)
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The Nano 168 is a compact, breadboard-friendly Arduino-compatible development board based on the ATmega168 microcontroller. It offers the same functionality ...
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The Nano 168 is a compact, breadboard-friendly Arduino-compatible development board based on the ATmega168 microcontroller. It offers the same functionality as the Arduino Nano in a small DIP form factor, with 14 digital I/O pins, 8 analogue inputs, and Mini-B USB for programming and serial communication.
As an Elecrow-produced Arduino Nano compatible, it works with the Arduino IDE and existing Nano shields. The board features upgraded 5 V regulation for improved drive capability and a surface-mount ICSP header.
Key Features
- ATmega168 Microcontroller – 16 KB flash, 1 KB SRAM, 512 bytes EEPROM
- Arduino Nano Compatible – Works with Arduino IDE and Nano shields
- Mini-B USB – Programming, serial monitor, and USB-UART converter
- Breadboard Friendly – Standard 2.54 mm DIP pin spacing
- Flexible Power – USB, 6–20 V unregulated (pin 30), or 5 V regulated (pin 27)
- Status LEDs – Power (red), TX (green), RX (green), L (green)
Specifications
- Microcontroller – ATmega168
- Operating Voltage – 5 V
- Input Voltage – 7–12 V recommended (6–20 V limit)
- Digital I/O Pins – 14 (6 with PWM)
- Analogue Input Pins – 8
- DC Current per I/O Pin – 40 mA
- Flash Memory – 16 KB (2 KB used by bootloader)
- SRAM – 1 KB
- EEPROM – 512 bytes
- Clock Speed – 16 MHz
- Dimensions – 18.5 × 43.2 mm (0.73 × 1.70″)
Note: When powered externally (not via USB), the 3.3 V output is not available as it is supplied by the USB interface chip. The TX and RX LEDs may flicker if digital pins 0 or 1 are high.
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- Bootloader
- Small starter software on a microcontroller that lets new code be uploaded before the main program runs. Knowing how to enter bootloader mode matters when you need to program the board or recover it after a faulty sketch.
- DC
- DC means direct current, where electricity flows in one constant direction, as supplied by batteries, USB ports and many plug-pack power supplies. When a product specifies DC, it runs from a DC supply rather than mains AC, so you need to provide the correct voltage and polarity.
- EEPROM
- A type of non-volatile memory that keeps stored data even when power is turned off. In a sensor module, it can be used to store settings or calibration data so they do not need to be re-entered every time.
- Flash memory
- Flash memory is non-volatile memory that retains stored data even when power is removed, and can be erased and rewritten in blocks. It lets data such as firmware, settings or saved records persist across power cycles.
- IDE
- Short for Integrated Development Environment, a program used to write, run and manage code. It matters because some learners prefer a traditional coding workspace instead of a guided notebook-style lesson.
- microcontroller
- A microcontroller is a small computer on a single chip that runs a stored program and controls connected inputs and outputs such as buttons, sensors, displays and communication interfaces. In a device built around one, it is the part that executes the code and coordinates the device's behaviour.
- PWM
- Pulse Width Modulation is a way for a digital pin to simulate variable output power by switching on and off very quickly. It matters for controlling things like LED brightness, motor speed, or servo-style signals from a microcontroller pin.
- RX
- RX means receive, usually showing data being received by the board. An RX indicator LED can help with troubleshooting USB or serial communication.
- SRAM
- Fast temporary memory used by a processor while a program is running. More SRAM helps with projects that handle larger data buffers, networking, displays, or more complex code.
- TX
- TX means transmit, usually showing data being sent from the board. A TX indicator LED can help you see when the board is communicating or uploading code.
- UART
- UART is a simple asynchronous serial interface that sends data over separate transmit and receive wires, usually labelled TX and RX, with both ends set to the same baud rate. It is a common way for microcontrollers and other serial devices to exchange data.
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