Arduino Pro Mini ATmega328P 3.3V 8MHz Compatible Board
The Arduino Pro Mini ATmega328P 3.3V 8MHz is an ultra-compact, low-power microcontroller board designed for embedded projects, wearable electronics, and battery-powered applications where space and power efficiency are critical. Based on the reliable ATmega328P microcontroller — the same chip used in the Arduino Uno — this board runs at 3.3V logic with an 8 MHz clock speed, making it ideal for low-voltage sensor networks, IoT edge nodes, and portable prototypes. Despite its tiny 33 × 18 mm footprint — roughly the size of a thumb — the Pro Mini packs 14 digital input/output pins (6 with PWM capability), 6 analog input channels, one hardware UART port, 32 KB of flash memory, 2 KB of SRAM, and 1 KB of EEPROM. It draws significantly less power than the Arduino Uno, making it a top choice for battery-driven designs. The board comes as a bare PCB with through-hole edge pads ready for soldering pin headers or direct wiring. Programming is done via an external USB-to-Serial adapter (e.g., FTDI FT232RL or CP2102) since there is no onboard USB port — this keeps the size and cost minimal. The onboard 3.3V voltage regulator accepts input from 3.4V to 12V DC, and a reset button allows easy restart. For Indian makers, students, and hobbyists, the Pro Mini 3.3V/8MHz is widely available at budget-friendly prices. It works seamlessly with the standard Arduino IDE — just select "Arduino Pro or Pro Mini" → "ATmega328P (3.3V, 8 MHz)" from the board menu. Whether you are building a weather station, a wireless sensor node, a robotic controller, or a wearable gadget, this compact powerhouse delivers professional-grade performance in the palm of your hand.
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₹313.00
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About Arduino Pro Mini ATmega328P 3.3V 8MHz Compatible Board
Technical Specifications
| SRAM | 2 KB |
|---|---|
| EEPROM | 1 KB |
| Weight | ~5 g (board only) |
| Power LED | Yes (green) |
| Status LED | Yes (pin 13) |
| Clock Speed | 8 MHz |
| Flash Memory | 32 KB (2 KB used by bootloader) |
| Reset Button | Yes |
| Compatible IDE | Arduino IDE 1.x and 2.x |
| Mounting Holes | 2 (for M2 screws) |
| PCB Dimensions | 33.3 × 17.8 mm |
| Microcontroller | ATmega328P (TQFP package) |
| Digital I/O Pins | 14 (6 with PWM output) |
| Analog Input Pins | 6 |
| Operating Voltage | 3.3V DC |
| UART / Serial Ports | 1 (hardware) |
| Programming Interface | External USB-to-Serial (FTDI / CP2102 / CH340G) |
| Board Selection in IDE | Arduino Pro or Pro Mini → ATmega328P (3.3V, 8 MHz) |
| DC Current per I/O Pin | 40 mA (max) |
| Onboard Regulator Output | 3.3V @ 150 mA (max) |
| Input Voltage (recommended) | 3.4V – 12V DC |
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