Castle Crew

Smart
Systems

The same NFC/RFID technology behind your Castle Crew card, put to work across your business — loyalty, attendance, secure access, door locks and point-of-sale, all on one tap-based backbone.

Get a Quote Download Castle Forge

Built on PN532 NFC/RFID hardware

✦

Reader Console

>> CASTLE FORGE KERNEL INITIALIZED

>> READER: PN532 (auto) — connected

>> Waiting for tap...

>> UID: 04:A3:22:9F:5C:80:01

>> Verified — Access Granted

>> Logged to history (0.14s)

Tap detected

What you can
build with it

Six ready-made use cases on one reader network — or ask us for a custom integration.

Loyalty Card Systems

Tap-to-earn and tap-to-redeem loyalty on branded NFC cards or tags — points, stamps and tiered rewards, no app required.

Attendance & Time Tracking

Staff tap in and out at the door. Clean, exportable attendance logs with zero manual sign-in sheets.

Secure Access Control

Card- or tag-based access with per-user permissions, zone restrictions and a full entry/exit audit trail.

Door Lock Systems

NFC-controlled smart locks for offices, residences and shared spaces — provision or revoke access remotely, instantly.

POS & Payments

Point-of-sale terminals that read the same cards, for tab-based accounts, cashless payments and member billing.

Custom Integrations

Asset check-out, event check-in, vending, equipment lockers — if it can be triggered by a tap, we can build it.

How it works

Every system on this page runs the same four-step loop under the hood.

Tap

A card, tag or wristband is tapped on a reader at the door, till or terminal.

Verify

The system checks the tap against permissions, balances or schedules in real time.

Act

Access is granted, a payment is charged, attendance is logged, or points are added.

Track

Every tap lands in a dashboard you can search, export and manage — no manual bookkeeping.

Program cards from
your own PC

Castle Forge is the free companion app for our PN532 NFC/RFID reader — write, read and manage every card in your system straight from Windows, no phone required.

Repeat Mode — write one link to many cards in a row
Batch Mode — import a list, write a different link per card
Read & inspect any tag, with keyboard-wedge auto-paste into Excel
Local write history log for every card you program

Download for Windows

v1.1.0 · Windows 10/11 · ~45 MB installer

Windows SmartScreen may warn that this is from an unrecognized publisher while we finish code signing — click More info → Run anyway to continue.

Castle Forge — v1.1.0

Write Cards

Read Cards

History Logs

Event Console

Settings

Continuous Writing

Write a single link sequentially to multiple cards.

Start Broadcast

Status

NFC Reader Ready

SmartSystems

What you canbuild with it