Sensor board

WLAN Pi Pro

Two Intel BE200 radios, PoE with battery backup, and front-panel menus. The choice for two channels at once.

Unified image

Two radios, PoE and a front panel.

Good for

  • Two channels at once
  • PoE mounting, left running unattended
  • Using front-panel menus without a phone

Hardware

PartDetail
ProcessorRaspberry Pi Compute Module 4 (BCM2711)
Memory8 GB on the tested unit. A CM4 comes with 1, 2, 4 or 8 GB; check which one your Pro has
Wi-FiTwo Intel BE200 on PCIe
Wi-Fi card linkBoth cards share the CM4’s single PCIe 2.0 ×1 lane (5 GT/s, about 4 Gb/s)
StorageRemovable SD on the tested unit; check yours before writing
WiredGigabit Ethernet with PoE in
PowerPoE or USB-C. A battery keeps it running after external power is removed
DisplayOLED front panel with five buttons

What you can buy

  • Compute module: CM4 with 1, 2, 4 or 8 GB of memory, and no eMMC (Lite) or 8, 16 or 32 GB. The tested Pro has 8 GB and boots from SD, which means a CM4 Lite. Check yours before writing the image.
  • Storage: SD on a CM4 Lite, or the CM4’s eMMC. SD write speed depends on the card.

Radios

CardMeasured
Two Intel BE200On separate channels at once. The card captures at 320 MHz on a Gen2 link (tested on a NanoPi, same card and link type); the app offers up to 160 MHz today

Limits

  • Heat: in a one-hour run the two radios reached 86 °C and 91 °C.
  • Both radios share one PCIe 2.0 lane (5 GT/s), so their combined rate is capped at about 4 Gb/s before overhead.

Measured

  • One-hour capture on both radios: about 3.0 and 3.2 million packets, no drops.

Install

The tested Pro uses removable SD. Check your unit's storage before writing. Its carrier board selects the Pro front panel and button profile. Use supported power or PoE, and remember the battery can keep it powered after external power is removed.

Then follow the unified image setup guide: claim the sensor with its one-time code, and connect from the app or the device website.