The Original Arduino Nano Development Board runs an ATmega328 microcontroller clocked at 16 MHz on a compact blue PCB measuring roughly 45 x 18 mm. The arduino nano fits directly onto a breadboard without blocking any adjacent rows, which matters when you are prototyping circuits with multiple components. The board operates at 5V and accepts 7 to 12V input through the USB Mini port or an external supply. With 32KB of flash memory, sketches upload quickly over the USB serial connection using the Arduino IDE.
A non-obvious point about the arduino nano pinout is that pins A4 and A5 serve double duty as I2C SDA and SCL lines. Many people miss this and wonder why their I2C sensor is not responding — those two analog pins handle digital I2C communication simultaneously with analog reads. The honest trade-off is storage. With only 2KB SRAM, complex sketches that declare large arrays or use heavy firmware libraries hit memory limits fast. You hit issues well before filling the 32KB flash. Keeping variables small and using PROGMEM for constant data is standard practice on this chip.
Students building first automation projects, prototyping sensor nodes, and makers wiring up small control boards all use the nano microcontroller board. The Arduino IDE, PlatformIO, and VS Code with the Arduino extension all support the ATmega328 with one-click upload. Standard sensor libraries for I2C, SPI, and serial monitor output all work without additional configuration. Pick it up at StemVolt for fast delivery anywhere in India.
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Features:
- ATmega328 runs at 16 MHz which handles serial monitor output and sensor reads simultaneously.
- 32KB flash stores the bootloader and full user sketch without requiring external memory chips.
- 22 digital I/O pins with 6 PWM outputs drive servos, LEDs, and relay modules directly.
- 8 analog I/O pins read 0 to 5V sensor outputs with 10-bit ADC resolution across all channels.
- arduino nano pin configuration maps A4 and A5 as I2C bus lines for sensor and display modules.
Technical specifications:
| Specification | Details |
|---|---|
| Product type | Development Board |
| Model | Nano |
| Microcontroller | Atmega |
| Color | Blue |
| Microcontroller Chip | ATmega328 |
| Operating Voltage (VDC) | 5 |
| Input Supply Port | USB Mini |
| Input Voltage (V) | 7-12 V |
| Power Consumption (W) | 1 |
| Analog I/O Pins | Digital I/O Pins | PWM Output Pins | 8 pin | 22 pin | 6 pin |
| Clock Speed | 16 MHz |
| Flash Memory | EEPROM | SRAM | 32 KB | 1 kB | 2 |
Applications:
- Automation projects with Arduino Nano control a four-relay module switching 230V AC loads on a timer schedule.
- Original Arduino Nano Development Board reads eight soil moisture sensors and triggers individual irrigation valves automatically.
- Temperature monitoring station uses the ATmega328 to poll a DHT22 over serial and log readings every minute.
- Servo controller sketch drives three hobby servos using 16 MHz PWM outputs for a small robotic arm.
- arduino nano board reads encoder pulses on two DC motors and adjusts PWM duty cycle for speed matching.
Package includes:
- 1 x Original Arduino Nano Development Board
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