Time Lines

Phase 1 – Requirement Finalization, Hardware & Firmware Design (6 Weeks)

Week	Task	Description	Deliverable (Internal)	Responsibility
Week 1	Requirement Finalization	Finalize technical requirements and performance targets.	Final Requirement Document	Hardware + Firmware Team
Week 2	Component Selection	Select sensor, LoRa (Mesh) SoC, PMIC, and components.	Approved BoM	Hardware Team
Week 3	Firmware Architecture	Define firmware stack and power management logic.	Firmware Design Document	Firmware Team
Week 4	Schematic Design	Develop complete circuit schematic.	Schematic Document	Hardware Team
Week 5	PCB Layout Design	4‑layer PCB design with EMI optimization.	PCB Layout Files	Hardware Team
Week 6	Latch/Switch Integration	Integrate magnetic/IMU wake‑sleep circuit.	Schematic + PCB Files	Hardware Team

Phase 2 – Prototype Development and Lab Testing (8 Weeks)

Week	Task	Description	Deliverable (Internal)	Responsibility
Week 7	Component Procurement	Order and receive selected components.	Stocked Components	Procurement Team
Week 8–9	PCB Fabrication – Batch 1	Manufacture 5 prototype units.	5 Assembled Units	Production Team
Week 10	PCB Assembly – Batch 1	Assemble PCBs.	Assembled PCBs	Hardware Team
Week 11–12	Bring‑Up & Initial Testing	Power‑on, sensor, communication bring‑up.	Initial Bring‑Up Report	Hardware Team
Week 13–14	Firmware Development Cycle 1	Develop base firmware (LoRa Mesh, power, OTA).	Test Firmware Build	Firmware Team
Week 15	Functional Testing – Batch 1	Accuracy, signal, power, wake‑sleep tests.	Functional Test Report	Hardware + Firmware Team

Phase 3 – Internal and Field Testing (8 Weeks)

Week	Task	Description	Deliverable (Internal)	Responsibility
Week 16–17	PCB Fabrication – Batch 2	Manufacture 20 units for pilot testing.	20 Assembled Units	Hardware Supplier
Week 18	Internal Lab Testing	Environmental, robustness, signal strength validation.	Internal Test Report	Firmware + Hardware Team
Week 19–20	Firmware Development Cycle 2	Refine stability, OTA, encryption.	Updated Firmware Build	Firmware Team
Week 21	Field Setup – Batch 2	Deploy pilot units.	Deployment Report	Deployment Team
Week 22	Performance Testing	Detect accuracy, false positives/negatives, RF quality.	Field Test Report	Firmware Team
Week 23	Battery Performance Validation	Long‑duration battery tests.	Battery Test Report	Hardware + Firmware Team
Week 24	Field Testing – Batch 3	Final extended evaluation.	Final Test Report	Deployment Team

Phase 4 – Pre‑Certification & Handover (2 Weeks)

Week	Task	Description	Deliverable (Internal)	Responsibility
Week 25	Performance Issue Resolution	Fix issues and finalize improvements.	Resolution Log	Hardware + Firmware Team
Week 26	Certification Readiness & Handover	Prepare CE/FCC documents, final handover.	Certification Package	Technical Architecture Team