We have several running deployments in and around Bremen, as well as some more exciting ones presented next.


Ngaoundere, Cameroon: The first test fields were carried out in the North of Cameroon, on the campus of the University of Ngaoundere in April 2016. We have tested the hardware and the software and have obtained several days of soil moisture data. The results of these experiments and the obtained data are published here:

Zaman, M. Gellhaar, J. Dede, H. Koehler and A. Foerster, “Demo: Design and Evaluation of MoleNet for Wireless Underground Sensor Networks,” 2016 IEEE 41st Conference on Local Computer Networks Workshops (LCN Workshops), Dubai, United Arab Emirates, 2016, pp. 145-147, doi: 10.1109/LCN.2016.040



Johannesburg, South Africa: In 2017, we have tested our sensor nodes for a different application scenario, namely miners’ safety during disasters. The goal was to evaluate the communication quality of the MoleNets in underground mines and their applicability as localization devices for trapped miners. The work was conducted together with Prof. Frederick Cawood and his team from the Witwatersrand University in Johannesburg. The results were quite promising and we are looking forward to continuing this cooperation once we can travel again. The results are described in this publication:

Zaman, A. Förster, A. Mahmood and F. Cawood, “Finding Trapped Miners with Wireless Sensor Networks,” 2018 5th International Conference on Information and Communication Technologies for Disaster Management (ICT-DM), Sendai, Japan, 2018, pp. 1-8, doi: 10.1109/ICT-DM.2018.8636376.


Hanties Bay, Namibia: in 2018, a master’s student of the CIT program went to Namibia to try the MoleNets for aquarium monitoring. Even if this was not a typical underground environment, aquarium halls share some properties with it, like the generally increased humidity and high environmental interference. The application itself was also very intriguing: maricultural researchers were trying to grow sweet water fish in salty water in order to better adapt to climate change and to consumers’ preferences. Thus, we installed a MoleNet on the aquarium, with sensors hanging into the water and monitoring pH value, dissolved oxygen, and water temperature. The results were again very positive and an installation there is still running. The results and experiences are described here:

Qayyum, K., Zaman, I. & Förster, A. H2O Sense: a WSN-based monitoring system for fish tanks. SN Applied Sciences 2, 1643 (2020).