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CASE / 04Employer-owned work

EKNOT Access

A mobile-to-door access flow where a resident requests entry in the app and an ESP32-C6 controller unlocks the entrance over Bluetooth LE.

  • C++
  • ESP32-C6
  • BLE
  • PlatformIO
  • OTA
SYS/04
  1. 01Approach door
  2. 02Authenticate BLE
  3. 03Unlock
SYSTEM MAP / 04

Signal path

The working path from input to physical or measurable outcome.

REQUESTResident app
CONTROLLERESP32-C6
PHYSICALDoor relay
↳ DEVICE LIFECYCLEOTA / diagnostics

Release · recovery · engineering handoff

RoleDocumentation & engineering handoff
Year2026
DeviceESP32-C6
LinkBluetooth LE
ScopePrivate firmware
01

The challenge

Start with the constraint.

Residents needed a short, understandable path from tapping “open” in the mobile app to a reliable physical door unlock over Bluetooth LE.

02

The approach

Make complexity local.

  1. 01

    Mapped the end-to-end flow from the resident app through BLE authentication to the entrance controller.

  2. 02

    Consolidated the ESP32-C6 firmware architecture, build process and device lifecycle into a developer handoff.

  3. 03

    Documented diagnostics, OTA releases and recovery procedures at a systems level.

  4. 04

    Preserved proprietary boundaries: no source, credentials or private repository links are exposed here.

03

The outcome

A documented and maintainable mobile-to-door access flow while keeping the employer-owned implementation private.

This is a limited description of a professional contribution. The product and source repository remain the property of the employer.