HW074: Build Your Own Access Point with Bradley Wegner

In this episode of Heavy Wireless, Keith Parsons sits down with Bradley Wegner, the creator of the 'Build Your Own Access Point' deep dive at WLPC Prague. Wegner shares his journey from a casual conversation at a conference with Brian Ward to developing a hands-on lab where attendees built their own wireless access points using the BananaPi board. He details the challenges of sourcing affordable hardware—initially deterred by $1,000 Qualcomm boards—before settling on the MediaTek-powered BananaPi, which offers impressive expandability with support for NVMe SSDs, 10GbE ports, cellular cards, and UWB. The episode dives into the technical and logistical hurdles, including firmware limitations with OpenWRT, regulatory issues with 6GHz band activation in the U.S., and last-minute hardware delays. Despite these, Wegner successfully led a 15-person lab where participants assembled the devices, configured them with OpenWRT, and even used them as clients in Wi-Fi 7 'school bus drag racing' tests. The experience sparked creativity, with students quickly repurposing the devices as sniffers, VPN endpoints, and storage servers. Wegner envisions future applications like location tracking with UWB, roaming extended service sets, and integrating cellular capabilities. He emphasizes the educational value of tactile hardware engagement and encourages others to explore similar projects. Key takeaways include: (1) Hands-on hardware projects like building your own AP deepen understanding of networking fundamentals; (2) The BananaPi offers a powerful, affordable, and extensible platform for networking labs; (3) OpenWRT remains a flexible and secure OS choice for custom networking devices; (4) Real-world constraints like regulatory compliance and firmware updates must be addressed early; (5) Collaborative learning environments foster innovation and problem-solving; (6) Devices can be repurposed beyond APs—into routers, clients, NAS, or even cellular gateways; (7) Community-driven troubleshooting (e.g., students patching firmware) enhances learning; (8) Future labs could explore Passpoint, WireGuard, TailScale, and UWB-based locationing.