Here are the materials from a talk given at the Triangle Embedded Interest Group (TriEmbed) September 12th, 2016 meeting at North Carolina State University.
Project motivation: The creek occasionally floods
Monitor components: Ultrasonic sensor (right), temp/humidity (bottom), Hope RF board (top-left)
Bottom view of ultrasonic sensor and temp/humidity sensors and radio/MCU carrier boad
Monitor overlooking creek with “measuring tape yagi” antenna above
Solar panel for battery charging
The measuring tape yagi and RG6 feedline