About PINGEQUA

PINGEQUA is an independent hardware lab focused on RF, Wi-Fi and modular expansion boards for Flipper Zero, M5Stack Cardputer and M5Stick devices.

We design compact hardware modules, test real firmware compatibility, and build practical setup resources for makers, hardware developers and wireless researchers. Our goal is to make advanced electronics accessories easier to install, configure and use.

Who We Are

PINGEQUA started from hands-on hardware development: PCB design, soldering, firmware testing, enclosure prototyping and real-world compatibility checks. We are based around the Shenzhen-Dongguan electronics ecosystem, which gives us close access to component sourcing, small-batch manufacturing and rapid product iteration.

What We Build

Our main focus is modular expansion hardware for popular open hardware and maker platforms, including:

• Flipper Zero modules — RF, Wi-Fi, GPS and GPIO expansion accessories.
• M5Stack Cardputer modules — compact RF and wireless expansion boards for Bruce firmware workflows.
• M5StickC / StickS3 accessories — portable RF and development modules for lab testing and learning.
• Supporting tools and documentation — setup guides, troubleshooting pages, web flashing workflows and compatibility notes.

Tested with Real Devices

We do not treat a module as finished just because the schematic works. Each product direction is checked against real host devices, real firmware environments and common user setup paths. This includes firmware compatibility, pin configuration, power stability, antenna connection, mechanical fit and beginner setup friction.

Documentation-First Support

Many hardware issues are actually setup issues: firmware version mismatch, wrong GPIO mode, incorrect pin file, missing app file, bad cable orientation or unsupported host hardware. For that reason, we invest in product-specific setup pages, Wiki content and troubleshooting notes instead of leaving users to guess.

Responsible Hardware for Makers and Researchers

Our products are intended for authorized testing, hardware development, education and lab research. We encourage responsible use, clear permission boundaries and compliance with local regulations.

Need Help?

For order questions, compatibility checks or setup support, contact us at support@pingequa.com. Please include your order number, product model, firmware version and photos of your setup so we can diagnose the issue faster.