📰 Dev.to · applekoiot

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Surviving the Dead Zone: Keeping a Cold-Chain Temperature Record Whole Offline

Dev.to · applekoiot 2d ago

Surviving the Dead Zone: Keeping a Cold-Chain Temperature Record Whole Offline

Intermittent connectivity is the norm on cold-chain lanes, not the edge case. The on-device logging, store-and-forward reconciliation, and timestamp-integrity d

Designing a Modular Wiring Harness for Multi-Function Vehicle Trackers

Dev.to · applekoiot 🏗️ Systems Design & Architecture ⚡ AI Lesson 2w ago

Designing a Modular Wiring Harness for Multi-Function Vehicle Trackers

How to allocate a 9-pin connector across 6 swappable modules for fleet, cold chain, security, and e-vehicle tracking.

Beyond Temperature Polling - Designing an Event-Driven Cold Chain Telemetry Stack

Dev.to · applekoiot ⚡ AI Lesson 1mo ago

Beyond Temperature Polling - Designing an Event-Driven Cold Chain Telemetry Stack

Why polling temperature every 10 minutes leaves auditors unsatisfied, and how a five-signal event model with idempotent payloads changes the math.

Why Most IoT Visibility Stacks Stall at Level 2 (And What Climbing to Level 3 Actually Looks Like in Code)

Dev.to · applekoiot ⚡ AI Lesson 1mo ago

Why Most IoT Visibility Stacks Stall at Level 2 (And What Climbing to Level 3 Actually Looks Like in Code)

A developer-side look at the visibility ladder for asset trackers, the firmware and payload schema choices that move a fleet from L2 to L3.

Building a Four-Layer Data Model for FSMA 204 Cold Chain Traceability

Dev.to · applekoiot 1mo ago

Building a Four-Layer Data Model for FSMA 204 Cold Chain Traceability

A practical data architecture for FSMA 204 cold chain traceability — entity, event, telemetry, and evidence layers with IoT sensor integration.