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Pinouts, which card carries which radio, which connector programs which chip: on these boards it is already written down and tested, so your prompt can describe the product you want.
Open hardware is why this works. The designs are published, so what we write about a board can be checked against them rather than taken on trust. And the board runs your firmware, not a vendor’s.
You do not need any of this to build on a board. Chip support covers that. This adds the board itself, verified once by hand, so your prompt can describe the product you want rather than your pins.

Read the bench

Live logs over RTT and serial, the HCI bus, and over-the-air capture.

Know the board

Written and verified by engineers, confirmed marked separately from assumed.

Prove the board

SPDX SBOM, live CVE scan, and a secure-by-design posture review.

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The boards

A Fanstel LEWRX840XE6P industrial gateway in its yellow IP65 enclosure, opened to show the board inside

LEWRX840XE6P, the IP65 unit opened

Everything in that photograph can be checked against Fanstel’s published schematics: the board revision printed on the PCB, the radio cards, the labelled programming headers.

LEW840x

An ESP32 base with Ethernet and PoE, radios on swappable M.2 cards, indoor or outdoor enclosure. BLE in, Ethernet, Wi-Fi and optionally cellular out, with failover.

BWG840x

An nRF52840 with a power amplifier on the sensor-facing radio, an ESP32 on the uplink, over UART inside the box. Two chips from one written spec.
The schematics, specifications and control code for both are published by Fanstel. We pin our own copy to the exact revision each build was checked against.

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If you make hardware

The details that make a device quick to build on should come from the people who designed it. If you already publish your designs, you are most of the way there. Each piece of knowledge is versioned, tested on the board, and carries its author’s name in every session that uses it, on the same contributor roster as everyone else. Fanstel is the first partner, not the only one. For the LEW840x this already includes signed images and licensed source: gateway firmware.

Talk to us

If you build open IoT hardware and want your devices to work this way.