Contact person: Business Client

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Location: West Drayton, United Kingdom

Budget: Recommended by industry experts

Time to start: As soon as possible

Project description:
"We are seeking a skilled developer/engineer to finalize the design, programming, or integration for our VanSmart vehicle alarm and security system. This is a cutting-edge protection system for vans and light cargo, combining hardware, a mobile app, and back-end communication. We need expertise in areas such as embedded systems, mobile app development (iOS/Android), and Bluetooth/GSM integration.

The core system must incorporate the following features and meet these specifications:

Connectivity & Control:
- SIM-based operation with Bluetooth (BLE) connection to the VanSmart App.
- The system must use a fixed pairing code (123456) that the user can change via the app after installation.
- GSM tracking and communication to an existing back-end server.
- Remote signaling of alarm conditions via SMS to the back-end (protocol already exists).
- App Functions (Apple or Android): Free download with Arm/Disarm system control , variable sensitivity for shock sensors , and variable entry and exit times.

Hardware & Power:
- Operation must be suitable for 12-50 volt DC.
- Includes reverse polarity protection and overload protection on the main board up to 5amps.
- The unit has an on-board re-chargeable battery with a charging circuit from the vehicle battery.
- Max PCB size is 100mm (smaller preferred).

Inputs & Outputs:
- Inputs:
- Clean form A relay for magnetic door contacts.
- Input for PIR motion detectors (detector spec to be provided).
- 2 pins for an override key jack socket connection (spec to be supplied).
- Output:
-12V sounder driver ($300mA max).
- 12V output to signal optional devices like the VanSmart tracker or immobiliser." (client-provided description)