Case Study - Real-time IR temperature sensing for workplace safety
MarchForth built MyTempie as a mobile-first health platform that pairs external IR sensors with cloud-backed administration for large-scale workplace screening.
- Client
- MyTempie
- Service
- IoT integration, Mobile app, AWS cloud platform
Overview
MyTempie is a mobile-first health solution designed to capture user body temperature through an external IR sensor and synchronize that data to AWS for enterprise safety monitoring.
MarchForth delivered the full product stack: sensor integration, cross-platform mobile app, administrative dashboard, APIs, and cloud infrastructure.
The challenge
At project start, organizations needed fast, non-contact temperature screening that could scale without manual bottlenecks.
The program had three key constraints:
- Hardware integration: mobile devices had to reliably ingest readings from Melexis MLX90614/90632 sensors through Arduino ESP32 over I2C.
- Data integrity: each reading needed secure linkage to authenticated user identities for compliance and auditability.
- Scalability: the platform needed to support bulk user operations and multiple organizational datasets in parallel.
The solution
MarchForth implemented a production-ready architecture across hardware, software, and cloud layers.
- Flutter mobile app for iOS and Android
- Arduino ESP32 + Melexis IR sensor integration
- Admin dashboard with VueJS and Bootstrap
- REST APIs on PHP and Go, hosted on AWS + MySQL
Workflow
- Authenticated users open the MyTempie mobile app.
- The app captures identity context and triggers the IR sensor for a reading.
- If temperature is below the configured threshold, access is approved; otherwise, entry is restricted.
- Temperature and user metadata are sent to AWS in real time for centralized review.
- Administrators monitor logs and manage bulk user data through the dashboard.
- Compliance logging
- Automated
- Cloud sync to AWS
- Real-time
- Scalable data model
- Multi-org
- API responses
- Low latency