Case study / 07
From physical current to useful mobile insight.
An end-to-end system connecting Arduino sensors, cloud services, data stores, and a mobile application.
- Role
- Backend & IoT Engineer
- Scope
- Devices · Data ingestion · REST APIs · Mobile integration
- Status
- Delivered project
- Year
- 2024
01 / CONTEXT
The problem
Ingest equipment readings reliably and expose them with low enough latency for an operational mobile experience.
02 / RESPONSE
The response
A two-tier device-to-cloud design separates acquisition, backend services, platform data, readings, and mobile APIs.
03 / EXPERIENCE
Product flow
- 01
Sense
Capture equipment readings.
- 02
Ingest
Transmit and normalize telemetry.
- 03
Store
Separate platform and reading data.
- 04
Serve
Expose secure, low-latency APIs.
- 05
Understand
Present consumption on mobile.
05 / SYSTEM
System architecture
A controlled acquisition boundary turns physical telemetry into secure mobile information.
06 / TRADE-OFFS
Architecture decisions
Two-tier boundary
Acquisition stays independent from product APIs.
Purpose-fit storage
Relational and document stores serve different shapes.
API optimization
Queries prioritize concurrent visibility.
07 / QUALITY
Security & reliability
- Acquisition and API responsibilities are isolated.
- The design supports simultaneous equipment.
- Documentation covers the complete system.
08 / EVIDENCE
Outcomes & evidence
- A working device-to-mobile data path.
- REST access designed for low-latency readings.
- Documented hardware, backend, and mobile integration.
09 / STACK