# Biscuit Crumb (Biscuit Shop)

> A keyring-sized wardriver with an LED ring, controlled from your phone.

- **Category:** Wi-Fi & Bluetooth
- **Availability:** Sold out
- **Price:** US$65, checked 2026-10-18
- **Good for:** Pocket-sized wardriving from your phone.
- **You'll need:** A phone with the Biscuit Manager app; location comes from its GPS.
- **Trade-off:** Scans Wi-Fi or Bluetooth, one at a time.
- **Page:** https://gadgets.sh/devices/biscuit-crumb/

## Where to buy

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

## Blueprint

**Closed design.** No schematics, PCB source, case file or BOM published on the product page.

### Key parts

| Part | Role | Datasheet |
|---|---|---|
| ESP32-C5 | dual-band Wi-Fi 6 scanner and BLE phone link | https://documentation.espressif.com/esp32-c5_datasheet_en.pdf |

_Notes:_ Fetched the biscuitshop.us product page on 9 October 2026: it names a single ESP32-C5, six NeoPixels and onboard SPI flash, and links the Biscuit Manager apps and a support community, but no hardware design files.

## DIY build evidence

**Sources not reviewed.** 0 pinned source files. Published files do not establish a tested reproduction.
- Build plan: https://gadgets.sh/diy/biscuit-crumb/
- Source manifest and downloads: https://gadgets.sh/diy/biscuit-crumb/manifest.json
- Source revision: Needs review
- Evidence: schematic: not-found; pcb: not-found; bom: not-found; gerbers: not-found; enclosure: not-found; firmware: not-found; instructions: not-found
Use the build plan to review hardware licence scope, missing evidence, firmware and dependencies before fabrication.

## Specifications

### Compute & storage

| | |
|---|---|
| Processor | One ESP32-C5: scanning and the phone link |
| Storage | Onboard SPI flash; no SD card slot |

### Wireless & software

| | |
|---|---|
| Wi-Fi | 2.4 and 5 GHz; Wi-Fi 6 |
| Phone link | BLE, to the Biscuit Manager app for iOS and Android |
| Scanning | Wi-Fi networks or nearby Bluetooth devices, one at a time |
| Mapping | Live maps, clustered markers and heatmaps in the app, using the phone’s GPS |
| Testing features | Maker lists Bluetooth testing tools, Evil Portal and Karma for authorized assessments |
| Node role | Satellite node for a Biscuit Pro or Ultra (firmware 1.4.40 or newer); cannot manage nodes |
| Badge Mode | Runs without the phone, signalling nearby supported devices and deauthentication activity on the LED ring; saves no logs |
| Updates | Over the air, from the app |

### Power & package

| | |
|---|---|
| Lights | Six RGB NeoPixels in a ring; brightness and effects set in the app, or off |
| Release | First batch went on sale 9 October 2026 and sold out within minutes |

## Documentation

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

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