Project overview
Gecko is our IoT module capable of sensing activities as well as the surrounding environment. We built this device with a Nordic nRF52832 MCU having 64MHz ARM® Cortex-M4F and 512KB Flash + 64KB RAM. We integrated a 6-axis Motion Sensor (Accelerometer and Gyroscope) for movements capture, as well as several other sensors, including pressure, temperature, humidity, gas quality and colour/light sensors.
In addition, our Gecko can capture sounds with an integrated microphone, and it gather light with a solar panel to extend the battery life (3.0V/30mA). In terms of connectivity, our Gecko uses a BLE Communication with gateway / smartphone and, alternatively, the collected data can be stored in an internal SD card.
We use a 500 mAh Li-Ion Battery with a battery voltage monitoring electronics. The battery can be charged via an USB (5V) port. Our Gecko is currently deployed on a variety of research studies and applications, including wearables and fixed location uses. written
APA style publications
- H. Li, M. Zheng and M. S. Eggleston, "The Gecko Sensor: An Ultra-Compact, Low-Cost, Solar-Powered Environment Monitoring Device," 2022 IEEE Sensors, Dallas, TX, USA, 2022, pp. 1-4. (PDF)
- M. Constantinides, S. Scepanovic, D. Quercia, H. Li, U. Sassi, M. Eggleston, “ComFeel: Productivity is a Matter of the Senses Too”, Proc. ACM Interact. Mob. Wear. Ubiq. Tech. 4, 123 (2020). (PDF)
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