--- product_id: 39355585 title: "Beetle - A Mini Arduino Leonardo-Compatible Microcontroller, ATmega32U4" brand: "dfrobot" price: "฿1032" currency: THB in_stock: true reviews_count: 13 category: "Dfrobot" url: https://www.desertcart.co.th/products/39355585-beetle-a-mini-arduino-leonardo-compatible-microcontroller-atmega32u4 store_origin: TH region: Thailand --- # 20mm×22mm ultra-compact size 3V coin battery low-power support USB HID plug-and-play programming Beetle - A Mini Arduino Leonardo-Compatible Microcontroller, ATmega32U4 **Brand:** dfrobot **Price:** ฿1032 **Availability:** ✅ In Stock ## Summary > ⚡ Tiny Tech, Massive Impact: Power your wearables with the Beetle-A microcontroller! ## Quick Answers - **What is this?** Beetle - A Mini Arduino Leonardo-Compatible Microcontroller, ATmega32U4 by dfrobot - **How much does it cost?** ฿1032 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/39355585-beetle-a-mini-arduino-leonardo-compatible-microcontroller-atmega32u4) ## Best For - dfrobot enthusiasts ## Why This Product - Trusted dfrobot brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Low-Power Longevity:** Optimized for 3V coin battery use, ensuring extended wearable operation without frequent recharges. - • **No-Solder, Sew-Ready:** V-shaped gold-plated pads enable direct conductive thread stitching—perfect for rapid prototyping and classrooms. - • **Expandable IO Arsenal:** 10 digital pins plus 5 analog inputs with SPI/I2C compatibility for versatile sensor and device integration. - • **Thumb-Sized Powerhouse:** Ultra-compact 20×22mm design fits seamlessly into wearables and embedded projects. - • **Plug & Play with Arduino IDE:** Program and debug effortlessly via Micro USB with native USB-HID support for keyboards, mice, and controllers. ## Overview The Beetle-A is a compact 20×22mm microcontroller based on the ATmega32u4, designed for IoT and wearable projects. It features no-solder, sewable gold-plated pads for conductive thread integration, supports plug-and-play programming via Micro USB with USB-HID capabilities, and runs efficiently on a 3V coin battery. With 10 digital and 5 analog pins plus SPI/I2C expansion, it’s the perfect blend of size, power, and versatility for rapid prototyping and embedded systems. ## Description desertcart.com: Beetle - A Mini Arduino Leonardo-Compatible Microcontroller, ATmega32U4 : Electronics Review: Works a treat, displays to Arduino IDE as Leonardo - Made my smallest K3NG, using the Beetle as its heart. I only had to change which pins were input/output and nothing else in the code for the upload to take and work first shot. It doesn't have as much memory space as a full Arduino Nano, but the SDA and SCL pins are better marked, as are the VCC and GND pads. The pads are big, and easy to solder, overall even better than the old Digispark boards. Review: Perfect for my project - It's tiny, it's inexpensive, and it works with the Sketch I made with an actual Leonardo. I keep it stored in a case meant for earplugs when not in use. Arduino IDE sees it as a Leonardo, everything works as a Leonardo. Splendid ## Features - Ultra-Compact Design: 20mm×22mm thumb-sized design is ideal for wearables and embedded systems, featuring wide-spaced pads for seamless conductive sewing and textile integration. - No-Solder, Sewable Design​​ – ​​V-shaped gold-plated pads​​ let users twist wires or stitch directly onto fabric with conductive thread. Ideal for beginners, classrooms, and rapid prototyping—no soldering iron needed. - Plug-and-Play with Arduino IDE​​ – Program via Micro USB. Leverage Leonardo’s USB-HID to create keyboards, mice, or game controllers. Directly download and debug programs via Micro USB interface, no need for programmer - Low-Power & Expandable: 10 digital pins + 5 analog inputs with 3V coin battery support | Optimized for long-term wearable use, compatible with SPI/I2C expansion via minimal wiring ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01B0IQFU4 | | Best Sellers Rank | #713 in Single Board Computers (Computers & Accessories) | | Brand | DFROBOT | | Built-In Media | onboard charging chip, Micro USB, V-shaped large-size gold-plated IO ports, two honeycomb shape gold-plated power interface | | CPU Speed | 16 MHz | | Compatible Devices | Arduino Leonardo, ATmega32U4 | | Connectivity Technology | USB | | Customer Reviews | 4.4 out of 5 stars 165 Reviews | | Item Weight | 9.07 g | | Manufacturer | DFRobot | | Memory Storage Capacity | 32 KB | | Mfr Part Number | DFR0282 | | Model Name | Beetle | | Model Number | DFR0282 | | Number of Items | 1 | | Operating System | Windows, macOS, Linux | | Processor Brand | Atmel | | Processor Count | 1 | | Processor Speed | 16 MHz | | RAM Memory Installed | 1 GB | | RAM Memory Technology | LPDDR4 | | Ram Memory Installed Size | 1 GB | | Total Usb Ports | 1 | | UPC | 752128161162 720405524078 | | Unit Count | 1 Count | | Wireless Compability | 5 GHz Radio Frequency | ## Product Details - **Brand:** DFROBOT - **CPU Speed:** 16 MHz - **Memory Storage Capacity:** 32 KB - **Model Name:** Beetle - **Ram Memory Installed Size:** 1 GB ## Images ![Beetle - A Mini Arduino Leonardo-Compatible Microcontroller, ATmega32U4 - Image 1](https://m.media-amazon.com/images/I/51zDX1Rl0JL.jpg) ![Beetle - A Mini Arduino Leonardo-Compatible Microcontroller, ATmega32U4 - Image 2](https://m.media-amazon.com/images/I/51E2rvWEDuL.jpg) ![Beetle - A Mini Arduino Leonardo-Compatible Microcontroller, ATmega32U4 - Image 3](https://m.media-amazon.com/images/I/61Yf3jHJSBL.jpg) ![Beetle - A Mini Arduino Leonardo-Compatible Microcontroller, ATmega32U4 - Image 4](https://m.media-amazon.com/images/I/61hM6N+llHL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works a treat, displays to Arduino IDE as Leonardo *by J***Y on June 26, 2024* Made my smallest K3NG, using the Beetle as its heart. I only had to change which pins were input/output and nothing else in the code for the upload to take and work first shot. It doesn't have as much memory space as a full Arduino Nano, but the SDA and SCL pins are better marked, as are the VCC and GND pads. The pads are big, and easy to solder, overall even better than the old Digispark boards. ### ⭐⭐⭐⭐⭐ Perfect for my project *by K***A on August 13, 2024* It's tiny, it's inexpensive, and it works with the Sketch I made with an actual Leonardo. I keep it stored in a case meant for earplugs when not in use. Arduino IDE sees it as a Leonardo, everything works as a Leonardo. Splendid ### ⭐⭐⭐⭐ Nice little board *by B***N on July 29, 2026* This seems to be a nice little Arduino Leonardo compatible board. Compact size. It has an attractive price. Like other Leonardo board is connects as a HID. Programming is through the normal Arduino IDE. ## Frequently Bought Together - Beetle - The Smallest Microcontroller - Seeed Studio XIAO ESP32C3 - Tiny MCU Board with Wi-Fi and BLE for IoT Controlling Scenarios. Microcontroller with Battery Charge, Power Efficient, and Rich Interface for Tiny Machine Learning. … - Seeed Studio XIAO RP2040 Microcontroller, with Dual-Core ARM Cortex M0+ Processor, Supports Arduino, MicroPython and CircuitPython with Rich Interfaces. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.th/products/39355585-beetle-a-mini-arduino-leonardo-compatible-microcontroller-atmega32u4](https://www.desertcart.co.th/products/39355585-beetle-a-mini-arduino-leonardo-compatible-microcontroller-atmega32u4) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-10-23*