---
product_id: 228580242
title: "BIT-C Pro Micro MCU w/USB-C & DFU bootloader (ATmega32U4, 5V/16MHz) (White)"
brand: "nullbits"
price: "¥6434"
currency: JPY
in_stock: true
reviews_count: 7
url: https://www.desertcart.jp/products/228580242-bit-c-pro-micro-mcu-w-usb-c-and-dfu
store_origin: JP
region: Japan
---

# 5V/16MHz high-speed MCU USB-C rugged connector DFU bootloader for seamless updates BIT-C Pro Micro MCU w/USB-C & DFU bootloader (ATmega32U4, 5V/16MHz) (White)

**Brand:** nullbits
**Price:** ¥6434
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your projects with pro-grade precision and zero hassle!

## Quick Answers

- **What is this?** BIT-C Pro Micro MCU w/USB-C & DFU bootloader (ATmega32U4, 5V/16MHz) (White) by nullbits
- **How much does it cost?** ¥6434 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/228580242-bit-c-pro-micro-mcu-w-usb-c-and-dfu)

## Best For

- nullbits enthusiasts

## Why This Product

- Trusted nullbits brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Quality You Can Trust:** Every unit undergoes rigorous testing to guarantee flawless performance right out of the box.
- • **Lightning-Fast Processing:** Powered by the ATmega32U4 running at 16MHz with stable 5V operation for smooth multitasking.
- • **Rugged USB-C Power & Data:** Durable through-hole USB-C port built to withstand daily hustle and heavy use.
- • **Effortless Firmware Updates:** Ships with a compact, reliable DFU bootloader that minimizes downtime and maximizes productivity.
- • **Customizable Power Indicator:** Built-in white LED with adjustable brightness levels controlled via GPIO for intuitive status monitoring.

## Overview

The BIT-C Pro Micro MCU is a professional-grade microcontroller board featuring the Atmel ATmega32U4 running at 5V/16MHz, equipped with a rugged USB-C connector and a streamlined DFU bootloader for easy firmware updates. Its customizable LED power indicator and exhaustive pre-shipment testing ensure reliable, high-performance operation for demanding development environments.

## Description

BIT-C Pro Micro MCU w/USB-C & DFU bootloader (ATmega32U4, 5V/16MHz) (White)

## Features

- About this item
- Pro-micro compatible microcontroller board featuring the Atmel ATmega32U4     Sturdy through-hole USB-C connector that is more rugged than a standard USB micro B     Ships with the Atmel DFU bootloader, which is smaller and less finicky than the default Caterina bootloader     The built in white LED shows power status by default, and can be set to 3 different brightnesses using GPIO controls     100% of Bit-C units are exhaustively tested before shipping, ensuring you're spending your time building, not debugging

## Images

![BIT-C Pro Micro MCU w/USB-C & DFU bootloader (ATmega32U4, 5V/16MHz) (White) - Image 1](https://m.media-amazon.com/images/I/51fYa2mFArL.jpg)

## Available Options

This product comes in different **Color** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    Just scratching the surface...
  

*by P***P on Reviewed in the United States on March 29, 2022*

I purchased this for use with the Nullbits Tidbit kit, and for what I'm using it for, it's been flawless. I wanted a basic add-on macropad for use with excel, visual studio code, and other productivity/professional tools, and this controller works just fine so far. Honestly though, since I'm just scratching the surface on what I can do with it, and you can create advanced functionality with any QMK capable MCU, here are the real reasons this particular unit gets five stars for me:1. It was very easy to solder. The pads are spaced well for a normal fine tip iron, and they lined up with the pin headers easily. Also, the legends on the board were very clear. I appreciate the good PCB layout from Nullbits.2. It comes in both black and white. Seems silly, but really happy I could get it in the appropriate colorway for my setup.3. The instructions from Nullbits were great. This is the biggest reason for the five stars. For a small company to have good, up-to-date documentation that just works is VERY impressive to me. I really appreciated being able to just hop into QMK configurator, create my layout, then follow their instructions to flash. Super easy, even if you're not technical.4. The price was right. For a general-purpose breakout board like this, I really don't think $20 is that bad.In any case, I'll be buying another one of these in the future for another custom productivity build.

### ⭐⭐⭐⭐⭐ 







  
  
    Extremely thin, should include standoffs though
  

*by R***S on Reviewed in the United States on May 6, 2022*

Incredibly thin which is great for the CRKBD (Corne Keyboard) as it allows for installation of microcontroller and LCD under the cover. Really should have included standoffs though as every other microcontroller I’ve ever purchased has come with them, if I didn’t have extras around I would have no way to install them.Other things:- Board is cut pretty rough, will have to sand it down- USB-C connector is side mounted and even though secure, does not look like it would stand up well to lots of connecting and disconnecting, would definitely suggest upgrading to magnetic adapter if using for a keyboard build- the white looks awesome- it really is crazy thinEven though there are some negatives here, still giving 5 stars as it’s readily available, price is OK but in current market is actually competitive, available in 2 colors, and I always appreciate innovation is such a small niche-market.Would recommend this for anyone who wants a pro-micro drop in replacement with USB-C. Elite-C is just as good but the BIT-C is MUCH thinner and may be much better/necessary for your use.

### ⭐⭐⭐⭐⭐ 







  
  
    Expensive but worth it. Definitely read the instructions!
  

*by M***N on Reviewed in the United States on July 23, 2021*

Grata product. Be sure to read the instructions so you use the correct flashing process. Usb-c port is well mounted and very sturdy!

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---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-30*