HardwareIoTSoftware
QR DoorMan: Secure Door Entry System
Multi-mode access control — gate unlocking by mobile authentication, RFID tag or vehicle tag.
DisciplinesHardware · IoT · Software
Our roleDesign, build, release
Technologies
Access controlRFIDMobile authPCB designEmbedded C
QR DoorMan
The challenge
What was in the way.
QR DoorMan needed hardware, iot and software work delivered as one system rather than split across vendors — multi-mode access control — gate unlocking by mobile authentication, RFID tag or vehicle tag.
Disciplines in scope
HardwareIn scope
Firmware / IoTIn scope
AI / ML—
Web & mobileIn scope
How we built it.
We restated the brief as constraints — power, latency, cost, compliance — and named the ones that conflicted. A working slice through the riskiest layer was signed off first, then built out in two-week increments with one demo each, reviewed against the same engineering standard across hardware and software.
01Technical discovery
02Architecture & prototype
03Build & iterate
04Deploy & hand over
Access control systems
RFID integration
Mobile authentication
01Shipped
Delivered to production and still maintained by the team that built it.02Tested
One test matrix across hardware, firmware and interface — no gaps between layers.03Documented
Runbooks, monitoring and escalation handed over with the system.04Scaled
Grew with usage without re-architecture or a second rebuild.