Exploring CodeCell: A Miniature ESP32-C3 Development Board for DIY Enthusiasts

Innovation takes centre stage in the ever-evolving world of robotics, wearables, and smart home devices. Engineer and YouTuber Carl Bugeja has introduced the CodeCell, a compact ESP32-C3-based development board designed as a versatile brain for modern DIY projects. With its powerful features and tiny form factor, CodeCell has already gained attention among makers and tech enthusiasts.

Compact Yet Feature-Packed Design

Measuring just 18.5 x 18.5 mm, CodeCell is one of the smallest ESP32-C3 development boards available, smaller than popular alternatives like Waveshare’s ESP32-S3-Zero and Seeed Studio’s XIAO ESP32S3. However, it still offers incredible functionality. The board is powered by the ESP32-C3 RISC-V microcontroller, featuring a 160MHz 32-bit processor, 400kB SRAM, and 4MB flash storage. It supports Wi-Fi 4 and Bluetooth Low Energy (BLE), making it ideal for connected applications.

Key hardware highlights include:

• Sensors:

- Vishay VCNL4040 light sensor (standard in the base model).

- Optional CEVA BNO085 nine-axis inertial measurement unit (IMU) for advanced motion fusion.

• Battery Support: Integrated LiPo charging circuit compatible with the included 70mAh battery.
• USB Type-C Port: Simplifies data transfer and charging.
• GPIO Expansion: Multiple pins with castellated headers for peripheral integration.

This combination of features makes CodeCell a robust choice for projects that require compact size and high performance.

Versatility in Applications

Carl Bugeja has curated several example projects to demonstrate the versatility of CodeCell. These include:

• Depth Gesture Recognition
• Tap Detection
• Proximity Sensing
• Automatic Dimming
• Step Counting
• Angle Control

The 'CodeCell.h' library supports these projects, simplifying development and accelerating prototyping. A detailed guide accompanies the board, offering step-by-step instructions for setting up the Arduino IDE, installing libraries, and uploading code.

Durability and DIY Focus

The ROHS-compliant PCB meets the IPC-A-600 II standard, ensuring reliability and safety for DIY enthusiasts. The kit includes a 70mAh 20C LiPo battery with a 1.25mm female connector, perfectly suited for compact projects. Its lightweight design (4.6 grams) complements the board’s portability.

CodeCell’s compact size and innovative design cater to both hobbyists and professionals. While it’s positioned as a DIY maker kit, commercial applications can be explored in collaboration with Microbots, the platform hosting the board.

Affordable Pricing and Availability

CodeCell is available in two configurations on Bugeja’s Microbots store:

• Light-only version: €12.50 ($13.50)
• Light-and-motion version: €29.99 ($32.00)

These competitive prices and its rich feature set make CodeCell a valuable addition to any maker’s toolkit.

Conclusion

The CodeCell ESP32-C3 mini development board is a game-changer for compact, innovative DIY projects. Its power and versatility are undeniable, from robotics to wearables and smart home automation. With example projects, detailed guides, and affordable pricing, CodeCell empowers makers to bring their creative ideas to life.

Explore more about CodeCell on Carl Bugeja’s YouTube channel and Microbots store. Whether you're a hobbyist or a developer, this tiny board is set to inspire your next great innovation.

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