Featured Speaker: Mr. Neil Hancock, CTO, Azonde, Aznode.com

The low-cost Internet of Things architecture is well suited for remote environmental monitoring. This talk covers a device designed to be low cost, solar powered, and used outdoors, for critical stream level monitoring in the drought stricken North Bay. The “open source” Stroud Water Research Center's "Modular Sensors" software and the Mayfly microcomputer facilitate environmental scientists collecting physical measurements from the “great outdoors”. Low-cost board level sensors using ADC, I2C or 1Wire are well understood and relatively low power. External transducers have a wider range of sensing, and require interfaces using the newer USGS SDI-12 three wire water world protocol, and the older stable Modbus 4wire RS485. Each brings new powering challenges. The software code and hardware definitions are stored in git, a distributed “Version Control System” allowing easy incremental traceable improvements. The package comes with technical debt that needs characterizing and analyzing. For more information, please contact the ES Department at (707) 664-2030 or engineering@sonoma.edu.