Biscuit Expansion Node XIAO ESP32-C5 | Unsoldered Headers | Firmware Preinstalled

$43.99
In stock. Usually ships in 1–3 business days.
  • Free US shipping on orders over $200. Add $156.01 more to qualify.
  • 30-day returns from delivery.
    Return terms: you pay shipping both ways, 3% card fee, 30% if opened
    • 30 daysfrom delivery to start a return
    • Shipping both waysto you and back to us, paid by you
    • 3% card feededucted from every refund
    • 30% open-box feeif the box has been opened
    • Special ordersno returns without a manufacturer RMA
    • Discontinued itemsnot returnable

    Wrong or defective items, and items damaged in transit with Package Protection, are always covered with no fees. Full return policy

  • Manufacturer's warranty from STS Technologies LLC. Warranty
  • Volume order? Get a quote: chat with us, email us, or add it to your cart and download a PDF quote.
D Questions about this product? Daniel and the team reply fast, usually within minutes, Mon–Fri 8am–4pm ET. Chat with us now or email us.
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Before You Order

  • Required: A Biscuit Pro or Ultra running compatible firmware as the node manager. The manager device is sold separately.
  • Included: One XIAO ESP32-C5 with dedicated Biscuit Node firmware installed and external antenna.
  • Power: Requires a USB-C cable and USB power source, neither included.
  • Compatibility: Biscuit DIY and Crumb cannot manage this node. The node does not connect directly to the phone app.

Add a Wireless Scanning Satellite

Pair the node through your primary device’s Node Management settings. A dedicated node scans assigned Wi-Fi channels or Bluetooth LE devices, one role at a time, and sends observations to its manager.

Hardware and Package

One Seeed Studio XIAO ESP32-C5 board with unsoldered pin headers and its external antenna. USB-C powered. No soldering is required for USB-powered operation; using GPIO accessories or a wired battery may require soldering.

  • 2.4 GHz and 5 GHz Wi-Fi 6; Bluetooth LE
  • 8 MB flash and 8 MB PSRAM
  • Compact exposed development board; no enclosure, display or built-in microSD slot
  • Battery, USB-C cable and USB power supply are not included

Operating Limits

Keep the node with its manager during wardriving: observations use the manager phone’s location. No onboard GPS, battery telemetry or local capture storage is provided. Firmware LED behavior varies by board; multicolor status indications are not promised.

Support

Compatibility questions: sales@stscollective.com. Setup support: support@stscollective.com.

STS Collective is an independent reseller and is not affiliated with or endorsed by Biscuit Shop. For authorized wireless research and education.

Biscuit Node documentation

Setup guides and downloads

Download your free PDF guide for setup, power requirements, troubleshooting and documentation links. Save a copy for offline reference.

Project documentation

Use the instructions for your exact hardware and installed firmware version. Setup help: support@stscollective.com.

Shipping

Free US shipping on orders over $200. Orders under $200 ship at the rate shown at checkout. Oversized items ship by freight; we confirm the quote with you first.

Shipping policy

Returns

Start within 30 days of delivery. On change-of-mind returns you pay:

  • Shipping both ways, to you and back to us
  • A 3% card processing fee
  • A 30% open-box fee if the box was opened

Special orders need a manufacturer RMA. Discontinued items can't be returned. Defective items are always covered.

Start a return

Damaged or wrong item?

Tell us within 3 days of delivery with photos and we'll make it right, with no fee.

Contact us

STS Technologies LLC warranty

This product is covered by the manufacturer's warranty. We help you with the claim from start to finish.

Warranty details

Support from real people

Setup questions, compatibility, firmware: chat with a specialist or email info@silarius.com, Monday to Friday, 8am to 4pm ET.

Chat with us

Business accounts

Approved businesses can pay on Net 30 / PO terms after their second completed order.

Ask about terms

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