Contact person: Business Client

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Location: Lutherville-Timonium, United States

Budget: Recommended by industry experts

Time to start: As soon as possible

Project description:
"Phase 1 is ready to move from paper to lab. Following Technical_Proposal_V3.0.0, I need a Raspberry Pi edge adapter that can
• Photometer serial integration
• HTTP API for the Android HMI
• AP/offline mode for field use
• Compatibility verification against the reference photometer firmware

Your code must be delivered as a repeatable Pi image and a field-trial package I can flash and ship.

While the adapter is taking shape, I also need the Phase 2 blueprint. The document should spell out the overall system architecture, detail every interface with its security model, and define an OTA/update and recovery strategy that keeps units serviceable in remote locations.

I will break the work into fixed-price milestones and release payment once each milestone is accepted. Any hardware you need (specific Pi model, serial adaptors, photometer stubs, etc.) will be reimbursed at cost with receipts.

I can get you hardware immediately so we can begin integration and architecture in parallel." (client-provided description)