The kit¶
What a sensor is built from: about €350. The prices include Dutch VAT, as seen on 2026-10-10; the links are the shops the first sensor came from, and any shop with the same part does.
| Part | What matters | Price |
|---|---|---|
| Raspberry Pi 5, 4 GB | €120.99 | |
| Raspberry Pi Active Cooler | Under two capture streams the Pi stayed unthrottled with it (a9000.md) | €5.43 |
| Raspberry Pi 27 W USB-C Power Supply, EU | The official 5 V 5 A supply: with it the Pi gives its USB ports 1.6 A, which the two adapters and the fan share | €12.09 |
| RTC Battery for Raspberry Pi 5 (KW-3229) | The sensor has no network time: its clock runs on the battery while the Pi is unplugged | €5.43 |
| 2× Netgear Nighthawk A9000 (A9000-100PES) | MediaTek MT7925U, the only USB chip that decodes EHT and 160 MHz. Not the A8500 and not the A9000-100PAS | €99.99 each |
| 2× microSD card, an endurance model such as the SanDisk High Endurance | The sensor's card and a spare flashed from its image, which fits only a card at least as large: the same model and size for both. Flashed with Raspberry Pi Imager, with verification | |
| USB-C to Ethernet adapter, 1 Gbit/s, and an Ethernet cable | The link between the Mac and the sensor, which carries both capture streams; below 1000 Mbit/s the app warns | |
| USB voltage/current meter, max 3 A (KW-1850), optional | The current a stick draws on its port | €6.64 |
A case to print is being designed in hardware/enclosure; the sensor works without it.