The Spudnik project is designed to monitor water quality and other environmental parameters in remote locations, report over the cell network and post the monitoring data to Ubidots and the Particle console.
The project is described, hardware identified, and the code posted at:
The initial deployment of this project in northern Minnesota has been working continuously since June 2018 without maintenance. As we enter winter, temperatures have been below freezing every day since November 7th with a low of -22C. Future implementations will incorporate water depth sensors and experiment with other battery types for cold conditions.