Pro Mini ATMEGA328P 5V/16MHz Dev Board - Arduino Compatible
Pro Mini ATMEGA328P 5V/16MHz Development Board
This compact board packs the ATmega328P microcontroller with a 16 MHz clock, 5V operating voltage, and all the I/O you need for embedded designs. It offers 14 digital pins (6 with PWM) and 8 analog inputs in a tiny footprint, making it a go‑to for permanent installations and battery‑powered devices. Use it exactly like an Arduino Pro Mini—same IDE, same code, same reliability.
Key Specifications
| Specification | Value |
|---|---|
| Microcontroller | ATmega328P |
| Operating Voltage | 5 V |
| Input Voltage (RAW pin) | 5 – 12 V |
| Digital I/O Pins | 14 (6 provide PWM output) |
| Analog Input Pins | 8 |
| Flash Memory | 32 KB (0.5 KB used by bootloader) |
What You Can Build With This
- A battery‑operated wireless sensor that reports temperature and humidity over nRF24L01
- A data logger that writes to a microSD card and sleeps between readings
- A compact stepper motor driver for camera sliders or small CNC projects
- A wearable LED matrix name badge controlled over Bluetooth
Compatibility
The board works with the Arduino IDE out of the box—select “Arduino Pro or Pro Mini” and “ATmega328P (5V, 16 MHz)” from the menu. It talks 5V logic, so it pairs directly with most common sensors, displays, and modules. Connect it to any FTDI breakout (3.3V or 5V) to program; the on‑board voltage regulator accepts 5–12 V on the RAW pin.
Wiring Notes
Unlike the Uno, the Pro Mini lacks a USB‑to‑serial chip—you’ll need an external FTDI programmer for code upload. Connect DTR through a 0.1 µF capacitor to the board’s DTR pin (or toggle the reset manually). The 5V pin can source up to 400 mA, but keep current per I/O pin below 20 mA for reliable operation.
Why Buy from Compoden
Every component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.
Is this compatible with the Arduino IDE?
Yes. In the IDE, select board “Arduino Pro or Pro Mini” and processor “ATmega328P (5V, 16 MHz)”. All standard libraries and examples will compile without changes.
Do I need a separate programmer?
Yes, because the board has no USB port. An FTDI Basic breakout or any USB‑to‑serial adapter with DTR line works fine. Once programmed, it can run standalone from a battery or power supply.
Can I use this with 3.3 V sensors?
Power the board from 5 V and use level shifters on the I²C or SPI lines. The 5 V logic will damage 3.3 V‑only peripherals without proper shifting. The on‑board Atmega328P is not 3.3 V tolerant.
📦 Free Setup Handoff Document Included
Every Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.
Ask Soldr above what you can build with this — it knows every Compoden kit this part appears in.
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items