{"product_id":"pro-mini-atmega328p-33v8mhz-development-board-arduino-compatible","title":"Pro Mini ATMEGA328P 3.3V\/8MHz Development Board - Arduino Compatible","description":"\u003ch1\u003ePro Mini ATMEGA328P 3.3V\/8MHz Development Board\u003c\/h1\u003e\n\u003cp\u003eThe Pro Mini ATMEGA328P 3.3V\/8MHz Development Board is a compact, breadboard-friendly Arduino‑compatible board designed for low‑power and space‑constrained projects. Based on the ATmega328P microcontroller, it operates at 3.3V logic, making it ideal for battery‑operated gadgets and wearables. Its tiny footprint lets you embed it directly into your final prototype.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMicrocontroller\u003c\/td\u003e\n\u003ctd\u003eATmega328P\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eClock Speed\u003c\/td\u003e\n\u003ctd\u003e8 MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e3.3V\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMemory\u003c\/td\u003e\n\u003ctd\u003e32 KB Flash (0.5 KB bootloader), 2 KB SRAM, 1 KB EEPROM\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eI\/O Pins\u003c\/td\u003e\n\u003ctd\u003e14 digital (6 PWM), 6 analog\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e33 mm x 18 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhat You Can Build With This\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/kit-indoor-weather-station\"\u003eBattery‑powered weather station with wireless data upload\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/sweat-ph-and-heart-rate-wearable-kit-with-arduino-nano\"\u003eWearable fitness tracker collecting motion and heart‑rate data\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/kit-esp32-mqtt-home-sensor-network\"\u003eWireless sensor network node using nRF24L01 for home automation\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/arduino-obstacle-avoidance-robot-kit-build-and-code-autonomous-car\"\u003eAutonomous mini robot with obstacle avoidance and Bluetooth control\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis board works perfectly with the Arduino IDE. Select Tools \u0026gt; Board \u0026gt; Arduino Pro or Pro Mini, then choose the ‘ATmega328P (3.3V, 8 MHz)’ variant. It pairs seamlessly with 3.3V sensors and modules such as HC‑05 Bluetooth, nRF24L01 radios, and 0.96″ OLED displays. You’ll need an external USB‑to‑serial converter (like an FTDI breakout) to upload sketches.\u003c\/p\u003e\n\n\u003ch2\u003eWiring Notes\u003c\/h2\u003e\n\u003cp\u003eConnect your FTDI programmer: VCC to VCC, GND to GND, TX to RX, RX to TX, and DTR to the RST pin via a 0.1 µF capacitor for auto‑reset. The onboard 3.3V regulator accepts 3.35–12V on the RAW pin. Never exceed 3.3V on any I\/O pin; use level shifters if you must interface 5V logic.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Buy from Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery 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.\u003c\/p\u003e\n\n\u003cdetails\u003e\u003csummary\u003eIs this compatible with the Arduino Uno?\u003c\/summary\u003e\u003cp\u003eYes, the ATmega328P is the same microcontroller used on the Uno. In the Arduino IDE, select “Arduino Pro or Pro Mini (3.3V, 8 MHz)” and all standard functions will work. The only difference is the lower operating voltage and absence of a USB port.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDoes it have a built‑in USB port?\u003c\/summary\u003e\u003cp\u003eNo, the Pro Mini omits the USB‑to‑serial circuitry to save space. You’ll need an external FTDI‑based USB‑to‑TTL adapter to upload your code.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I use 5V sensors with this board?\u003c\/summary\u003e\u003cp\u003eDirect connection to 5V sensors is not recommended. Use a 4‑channel logic level converter or choose sensors designed for 3.3V operation to avoid damaging the board.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdiv class=\"compoden-handoff\" style=\"margin-top:24px;padding:16px;background:#f0f4ff;border-left:4px solid #2B4D8F;border-radius:4px;\"\u003e\n  \u003cp style=\"margin:0 0 6px 0;font-weight:600;color:#1A3560;\"\u003e📦 Free Setup Handoff Document Included\u003c\/p\u003e\n  \u003cp style=\"margin:0;font-size:0.95em;color:#333;\"\u003eEvery 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.\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53445086183789,"sku":"CDN-0080","price":230.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/image_1_97958533-2142-41b9-a942-de603c85c072.jpg?v=1781513241","url":"https:\/\/compoden.com\/products\/pro-mini-atmega328p-33v8mhz-development-board-arduino-compatible","provider":"Compoden","version":"1.0","type":"link"}