IoT Gate Barrier Controller

I’m setting up a smart gate barrier that runs on a Raspberry Pi and reports to a self-hosted ThingsBoard instance on my own virtual server. The job covers everything from wiring the Pi to the gate hardware right through to building a browser dashboard my staff can pull up on any PC.

Here’s what I need the finished system to do for me:
• Show the gate’s status in real time, with clear indicators for open, closed, or fault states.
• Let authorised users trigger OPEN / CLOSE remotely and see an immediate confirmation.
• Store a full access history—time-stamped events and which user issued each command.
• Present all of that data in a detailed dashboard: live widgets, trend graphs, charts, and a scrollable log panel.
• Send email and push notifications if the gate is forced, left open too long, or if the Pi or server drops offline.

Core tech is flexible as long as it’s reliable; MQTT, Python, Node-RED, or direct ThingsBoard integrations are all fine. The server is already provisioned (Ubuntu 22.04, root access ready). I’ll want clean code, commented where it matters, and a short deployment script so I can recreate the setup on a spare Pi if needed.

Deliverables
1. Raspberry Pi image (or Ansible/Bash script) that:
– Drives the gate relay and status sensors
– Secures connectivity to ThingsBoard with TLS

2. ThingsBoard installation on my VPS with:
– Custom dashboards matching the spec above
– Role-based logins for Administrator and Operator levels

3. Notification service configured for my SMTP and preferred push channel (Firebase or similar).

Acceptance criteria
• Command-to-action latency under 1 second on the local network.
• Dashboard widgets refresh every 2 seconds or faster.
• Access logs stored for minimum 90 days and exportable as CSV.

Hand-over includes all source files, documentation, and a quick Zoom walkthrough. If you’ve built similar IoT control systems, especially with ThingsBoard, I’d love to see a demo or screenshots when you bid.

2. Scope of Work
The Service Provider will:
1-Configure Raspberry Pi to communicate with ThingsBoard using MQTT
2-Implement gate open/close control logic on the Raspberry Pi
3-Integrate Raspberry Pi with the Client’s self-hosted ThingsBoard instance
4-Configure telemetry and server-side RPC for gate control
5-Create a functional ThingsBoard dashboard for client PC access
6-Implement basic reliability and safety handling (reconnects, command validation)
Provide documentation for setup, operation, and future extension

The Service Provider will deliver:
• Raspberry Pi application source code
• MQTT communication setup with ThingsBoard
• Configured ThingsBoard dashboards
• Basic wiring / interface guidance
• Setup and usage documentation

1.3D Graphic pages shall be prepared for the operation to monitor the status of each barrier.
2.The status of each Boom Barriers Open/ Close/ Trouble shall be displayed by change of colors.
3.The actual, real time operational status of each Boom Barrier shall be displayed on the graphic page.








4.The Alarms shall pop up on the screen.
Please prepare the following graphic pages in the system, not limited to:
a. Home Page Graphic
b. Cluster Wise Graphic Pages
c. Basement Wise Graphic Pages
6. Each page must include fully functional navigation buttons, including:
a. Home
b. Next
c. Previous
d. Back (if required)
e. Cluster Selection (for relevant pages)
f. Basement Selection (for relevant pages), etc.,


5.Contractor to prepare and submit the technical document for the 3D Graphic pages and obtain all approvals.
6.Floor plan graphic pages shall be developed to clearly display all access control and traffic management equipment installed on each level. The graphics must include accurate placement and labeling of the Boom barriers, etc., devices on the layout.
It shall also be possible to group the barriers/blockers to open/close them.