Mecha Comet Modular Linux Handheld Launches on Kickstarter

The Mecha Comet has officially launched on Kickstarter, bringing a modular Linux handheld computer to market after a year of development. This device targets developers and tinkerers who want a pocket-sized computer with swappable input modules rather than a fixed design.

Hardware Architecture and Modular Design

The core innovation is the modular input section that sits below a 3.92-inch AMOLED display. Users can swap between different modules including a QWERTY keyboard, gamepad, or I/O breakout board. This approach allows the same base hardware to serve different use cases - from development work to gaming to embedded electronics prototyping.

The base model uses an NXP I.MX8M Plus quad-core Arm Cortex-A53 processor with 2GB RAM and 64GB eMMC storage, priced at $189 for Early Bird backers. For more demanding applications, higher-tier configurations feature the I.MX 95 hexa-core Arm Cortex-A55 chip with up to 8GB RAM and 128GB SSD storage.

Input Module Ecosystem

Each input module requires separate purchase: $25 for the keyboard extension, $20 for the gamepad, and $15 for the I/O breakout board that exposes 40 GPIO pins. Bundle discounts are available for multiple modules. This modular approach creates an ecosystem where the device can evolve with user needs rather than requiring hardware replacement.

Connectivity and Expansion

Both processor variants share the same peripheral set:

• Two USB Type-C ports
• HDMI output
• 3.5mm audio jack
• 8MP autofocus webcam
• Dual microphones and speaker
• WiFi 6 and Bluetooth 5.4
• M.2 3042 B-Key PCIe 3.0 x1 slot

The M.2 slot supports 4G/5G modems or M.2 2230 SSDs with an adapter. This expansion capability transforms the handheld from a standalone device into a platform for cellular connectivity or additional storage.

Developer-Focused Specifications

The 1080 x 1240 pixel multitouch display reaches 500 nits brightness, adequate for outdoor use. The 4,100 mAh battery and 9-axis motion sensor suggest applications beyond traditional computing. Physical dimensions (155 x 73 x 14mm, 225g) place it between a large smartphone and small tablet.

Open Hardware Commitment

Mecha Systems has published source code for device software and plans to release PCB designs and mechanical files. This open hardware approach enables community modifications and long-term maintenance beyond the company's support cycle. Developers can create custom modules or adapt the design for specific applications.

Shipping Timeline and Platform Implications

Shipping begins in June for i.MX8M Plus models, with I.MX 95 variants following in September. The NXP processors run mainline Linux without proprietary firmware dependencies, making the device suitable for embedded development and IoT prototyping.

The Mecha Comet represents a shift toward modular, open hardware in the handheld Linux space. Rather than competing with smartphones, it creates a category of pocket computers that prioritize expandability and developer access over consumer convenience.

For developers maintaining cross-platform applications, the device offers a Linux environment that can test ARM-specific code paths without cloud instances. The modular I/O board could interface with sensors or industrial equipment, making it useful for field testing embedded systems.

The Kickstarter campaign provides early access to a hardware platform that bridges the gap between single-board computers like Raspberry Pi and consumer handhelds. With open designs and modular architecture, it offers long-term value for developers who need portable, customizable Linux hardware.

Mecha Comet Kickstarter Campaign

Mecha Systems Official Website

NXP I.MX8M Plus Processor

NXP I.MX 95 Processor