Evaporometer team meeting at OPEnS Lab. Bo Zhao (OSU GeoVisualization) and Chet Udell (Director, OPEnS) center holding Evaporometer transmitter node. Marissa Kwon and Manuel Lopez (far right) Evaporometer technical team. Shaozeng Zhang (front-right) from Anthropology plans to study the interplay of data, translation, mapping, and public engagement with this project.

Evaporometer team meeting at OPEnS Lab. Bo Zhao (OSU GeoVisualization) and Chet Udell (Director, OPEnS) center holding Evaporometer transmitter node. Marissa Kwon and Manuel Lopez (far right) Evaporometer technical team. Shaozeng Zhang (front-right) from Anthropology plans to study the interplay of data, translation, mapping, and public engagement with this project.

Abstract

The Evaporometer wireless star network system is weeks away from being prepared for the Andrew's Cyber Forest! This post details the features and improvements leading up to the current state of the system.

Objectives

Bo Zhao (OSU GeoVisualization) and Chet Udell (Director, OPEnS) have teamed up to deploy a number of wireless environmental sensors in the Andrews Cyber Forest. The Evaporometer wireless star network currently consists of one receiver hub connected to the web and a group of sensor transmitter devices. Devices communicate through LoRa long-range low-power radios up to 20km line of sight. Data will be publicly accessible and visualized in realtime by Bo Zhao's group.

Devices

Transmitter nodes consist of the following:

 Hub consists of:

Method of use

Multiple Transmitter nodes will be distributed in a star network arrangement around the central hub. They will each transmit data from their sensors in 15min intervals. Receiver Hub will log each transmission onto a local micro SD card. It also uploads transmissions in near real-time onto a secure Google spreadsheet. Bo Zhao's bots will dynamically pull data from this sheet for visualization.

Deployment will take place July 27.