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tech 2 June 2026

Muxcard: A DIY Credit Card Sized Computer

Muxcard offers an innovative DIY solution: a credit card-sized computer featuring an E-Paper display, ESP32, and NFC technology. Discover how this tech could revolutionize your projects.

Article inspired by the original source
Muxcard, a dyi credit card size computer ↗ github.com

Introduction

In the ever-evolving world of technology, compact and powerful solutions are always in demand. Enter Muxcard, a DIY computer the size of a credit card. This open-source project offers endless possibilities for developers, engineers, and tech enthusiasts.

What is Muxcard?

Muxcard is a project available on GitHub by the user krauseler. This device is literally the size of a credit card and combines several powerful technologies, including an E-Paper display, an ESP32 microcontroller, and NFC capabilities. The compact design doesn't compromise on functionality, offering a portable and customizable platform for various tech projects.

Key Components

  • E-Paper Display: Known for its low energy consumption, the E-Paper display is ideal for applications that require continuous display without draining the battery.
  • ESP32: This microcontroller is a popular choice for IoT projects due to its integrated Wi-Fi and Bluetooth, computational power, and flexibility.
  • NFC: Near Field Communication technology allows for contactless interactions, paving the way for innovative applications like access cards and mobile payments.

Potential Applications

IoT Projects

With its Wi-Fi and Bluetooth capabilities, Muxcard is perfect for Internet of Things (IoT) projects. You can use it to monitor sensors, control devices remotely, or even create a centralized hub to manage multiple IoT devices.

Rapid Prototyping

Muxcard makes an excellent foundation for testing new ideas quickly. Its compact size and flexibility allow for creating and modifying prototypes without investing in expensive hardware.

Educational Technology

For students and educators, Muxcard provides an affordable platform to learn and teach programming, electronics, and IoT development. It's a fun and accessible way to get familiar with complex concepts.

Challenges and Opportunities

Technical Challenges

Like any open-source project, Muxcard presents challenges, particularly in assembly and programming. However, the active GitHub community is a valuable resource for overcoming these obstacles.

Growth Opportunities

As an open-source project, Muxcard has the potential to continuously evolve through community contributions. It's a great opportunity for developers to engage in a collaborative project and influence its future direction.

Conclusion

Muxcard is more than just a gadget; it's an invitation to innovate. Its unique combination of technologies makes it a valuable tool for a wide range of projects. Whether you're a developer looking to experiment or an educator wanting to offer a hands-on experience, Muxcard is a solution worth considering.

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Muxcard ESP32 E-Paper NFC DIY computer
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