Project Overview
This project was a focused engineering development centred on reliable sensing, robust firmware and practical deployment. The product needed to support rapid mapping of temperature conditions across a large number of measurement points, making ease of placement, data capture and retrieval essential.
The sensor comprised a Bluetooth communication protocol, a high-accuracy temperature sensor and a compact enclosure designed to be both discreet and easy to deploy. The product was intended for use in industrial contexts where reliability, repeatability and simple operator handling were critical.
Although simpler in appearance than larger connected systems, the project required precise execution across electronics, firmware, RF communication, enclosure design and user experience.
The Technical Challenge
The primary challenge was balancing small form factor, sensor accuracy, battery life, data storage and wireless communication. The device had to record temperature data over extended periods, store data locally and allow operators to retrieve readings remotely when required.
Because the device could be used in harsh or biomedical-adjacent environments, the casing material and physical design were also important. The enclosure had to be robust, discrete and suitable for a wide range of deployment settings.
From a firmware perspective, ultra-low-power operation was central. The system needed to manage sleep behaviour, sampling intervals, local memory, Bluetooth communication and reliable data retrieval without unnecessary battery drain.
Design and Engineering Approach
Denovi developed the product around the needs of operators working with many data points. The user experience was not just the interface or data output; it included how the sensor was placed, identified, retrieved, connected and downloaded.
The electronics and PCB design were developed to support a compact sensor package with Bluetooth communication and local storage. Component selection, PCB layout and power strategy were all shaped by the requirement for long operating life and reliable RF behaviour.
Firmware was designed to run on ultra-low power while recording weeks of temperature data locally. This allowed the device to be deployed, left in place and retrieved later, with data downloaded wirelessly without requiring a constant live connection.
The casing was developed in medical-grade nylon to support durability and suitability across demanding environments. Its form was designed to be neat, discrete and practical, making it easier to deploy without interfering with the environment being measured.
Outcome
The result was a compact Bluetooth temperature sensor platform that combined reliable sensing with low-power embedded design and practical field usability. The project demonstrates how careful firmware architecture, RF communication design and physical product packaging can turn a simple sensing requirement into a robust industrial tool.
For Denovi, the project highlights capability in clinically executed IoT engineering: focused, efficient and built around the realities of deployment.