# Biscuit Ultra (Biscuit Shop)

> A screen-free wireless survey device, controlled from your phone.

- **Category:** Wi-Fi & Bluetooth
- **Availability:** Sold out
- **Price:** US$160, checked 2026-09-15
- **Good for:** Log wireless surveys from your phone.
- **You'll need:** A compatible phone; location comes from its GPS.
- **Trade-off:** Screen-free design; check phone compatibility.
- **Page:** https://gadgets.sh/devices/biscuit-ultra/

## Where to buy

| Shop | Status | Link |
|---|---|---|
| Biscuit Shop | Sold out at Biscuit Shop | https://biscuitshop.us/products/biscuit-ultra?utm_source=gadgets.sh&utm_medium=referral&utm_campaign=biscuit-ultra&utm_content=api |

## Blueprint

**Closed design.** No schematics, PCB source, or BOM published; only a 3D-printable case model and a community wiki with no technical design files were found.

### Design files

- 3d-model: [Biscuit Pro/Ultra case (MakerWorld)](https://makerworld.com/en/models/2360992-biscuit-pro-case) (STL)

### Key parts

| Part | Role | Datasheet |
|---|---|---|
| ESP32-WROOM-32E-N8 | BLE/phone-link + telemetry processor | https://www.espressif.com/sites/default/files/documentation/esp32-wroom-32e_esp32-wroom-32ue_datasheet_en.pdf |
| ESP32-C5-WROOM-1-N8R8 | dual-band Wi-Fi 6 / injection radio | https://www.espressif.com/sites/default/files/documentation/esp32-c5_wroom-1_datasheet_en.pdf |

_Notes:_ Fetched biscuitshop.us product page and the community wiki (codehedge.github.io/Biscuit-Wiki) — neither links a schematic, PCB source, GitHub hardware repo, or BOM. Only the case STL and a Discord/wiki for support were found.

## Specifications

### Compute & storage

| | |
|---|---|
| Scanner | ESP32-C5-WROOM-1-N8R8 |
| Phone-link processor | ESP32-WROOM-32E-N8 |
| Storage | microSD slot and 8 MB SPI flash |
| Internal link | UART, 115200 baud |

### Wireless & software

| | |
|---|---|
| Wi-Fi | 2.4 and 5 GHz; Wi-Fi 6 / 802.11ax |
| Antennas | Two external RP-SMA connectors |
| Phone link | BLE GATT; phone GPS integration |
| Scanning | Wi-Fi access points/stations, Bluetooth and supported device identifiers |
| Capture | PCAP, PMKID and four-way handshake logging to microSD |
| Testing features | Maker lists deauthentication, beacon and portal testing, plus attack-device detection |
| Mapping | WiGLE API and WDG Wars integrations |
| Expansion | External ESP32-C5 nodes with the maker’s node firmware |

### Power & package

| | |
|---|---|
| Battery | 3200 mAh Rabbit Labs 18650 cell |
| Monitoring | I²C battery gauge |
| Status | Configurable RGB NeoPixel with stealth mode |
| Enclosure | 3D-printed ABS-GF |
| Included | Device and two swiveling 2.4/5 GHz antennas |

### Compatibility & support

| | |
|---|---|
| Phone limitation | Maker explicitly warns of unstable BLE with Nothing 4a Pro |
| Warranty | Maker advertises 60-day warranty and seven-day return window; check current terms |

## Documentation

- [Maker specifications and product details](https://biscuitshop.us/products/biscuit-ultra)

---
Source: gadgets.sh · https://gadgets.sh/devices/biscuit-ultra/ · JSON: https://gadgets.sh/api/v1/devices/biscuit-ultra.json