Second Generation Soil Monitoring network at Olin Hall

On November 30th, we started deploying the second generation of our soil monitoring network at the site behind Olin Hall on JHU's Homewood campus. So far we have deployed nine sensing motes and two relay points, used to forward measurements from the sensing nodes to the WSN gateway. The network uses our Koala protocol for reliable data gathering with ultra-low energy consumption.

This is what the sensing node looks like in the lab without the sensors:

This is what it looks like in the field with the fan-out box where the sensors connect:

It is based on the TelosB mote from (ex) MoteIV and is connected to two Echo5 soil moisture sensors and two soil temperature sensors. Temperature and Humidity sensors are deployed at 10 and 30 cm depths which the sensing mote sits on the forest bed.

Below is a short video, documenting the deployment process, courtesy of Marcus Chang.