Running a 3.3V sensor or radio module off a 5V Arduino usually means bolting on a voltage regulator or a level shifter just to keep everything from frying — extra parts, extra wiring, extra chances for something to go wrong. The Arduino Pro Mini 3.3V 8M ATMEGA328P compatible board sidesteps that problem by running natively at 3.3V, and it's available at Tech Depot India for Rs 253.

What is the Arduino Pro Mini 3.3V 8M ATMEGA328P compatible board?
As the name lays out plainly, this is a Pro Mini-style compatible board built around the ATMEGA328P chip, running at 3.3V logic with an 8MHz clock. That combination exists for a reason: a lot of low-power sensors, GPS modules and radio transceivers speak 3.3V natively, and trying to interface them with a 5V board is exactly the kind of problem that causes flaky readings or burnt-out modules.
Because it drops the onboard USB and voltage regulation hardware found on larger boards, it stays small enough to disappear into a finished project. If you're planning around a 3.3V peripheral, the Pro Mini 3.3V board removes the mismatch at the source instead of patching around it.
Arduino Pro Mini 3.3V 8M ATMEGA328P compatible board projects — what you can build
- A battery-powered sensor node paired with 3.3V-only modules, with no regulator needed
- A compact GPS or LoRa tracker where every extra component adds bulk you don't want
- A low-power wearable or wristband prototype built around minimal board footprint
- A remote weather or soil-monitoring station running off a small battery pack
- A wireless sensor mesh node where several boards need to run for long stretches on limited power
- A hidden control board tucked inside a 3D-printed enclosure with no room to spare

Arduino Pro Mini compatible board options compared
| Product | Price | Notes |
|---|---|---|
| Arduino Pro Mini 3.3V 8M ATMEGA328P compatible board | Rs 253 | 3.3V logic, 8MHz, ATMEGA328P-based compatible board |
| Ameba RTL8195 Arduino Wireless Board | Rs 2,028 | Wireless-focused Arduino-compatible board |
| Arduino Decimilia Duemilanove compatible Board | Rs 896 | Classic Duemilanove-style compatible board |
| Arduino Due AT91SAM3X8E ARM Cortex-M3 compatible Board | Rs 3,939 | ARM Cortex-M3 based compatible board, a step up in processing power |
Choosing the right one for your project
If your peripherals are all 3.3V — think GPS chips, many radio modules, and a good chunk of newer sensors — this board removes a compatibility headache before it starts. If your project instead leans on 5V sensors or shields, one of the alternatives above, like the Duemilanove-compatible board, may be the better fit. And if you need considerably more processing headroom for the same wiring effort, the ARM Cortex-M3 based Due-compatible board in the table is worth a look. Match the board to the voltage and complexity of the parts you already have, rather than the other way around.
Arduino Pro Mini 3.3V 8M ATMEGA328P compatible board specifications
For full and current Arduino Pro Mini 3.3V 8M ATMEGA328P compatible board Specifications — pin layout, programming header and full electrical details — please check the linked product page before ordering.
Buy Arduino Pro Mini 3.3V 8M ATMEGA328P compatible board Online in India
Tech Depot India ships this board to Bengaluru, Delhi NCR, Hyderabad, Mumbai, Chennai and pan-India, with a GST invoice on every order. Payment is prepaid only, via Razorpay (UPI, cards or net-banking), and orders typically arrive within 8-10 working days. Every board carries a 15-day warranty on manufacturing defects — just report any issue within 5 days of delivery. Questions before you order? Reach us on WhatsApp or email techdepotindia@gmail.com, or browse more boards in our microcontrollers collection.
Frequently asked questions
What is the Arduino Pro Mini 3.3V 8M ATMEGA328P compatible board Price in India?
It is priced at Rs 253 at Tech Depot India, with a GST invoice included on every order.
How long will delivery take?
Orders ship from Bengaluru, Delhi NCR and Hyderabad and typically reach customers pan-India within 8-10 working days.
Is there a warranty on this board?
Yes, it carries a 15-day warranty covering manufacturing defects, provided the issue is reported within 5 days of delivery.
What payment options are available, and is a GST invoice provided?
Payment is prepaid only via Razorpay (UPI, cards or net-banking), and a GST invoice is issued with every order.
Will this board work with my existing shields or sensors?
Compatibility depends on your specific hardware and its voltage requirements, so please check the product page and your board or module's own documentation before ordering.