Categories: Andrew Ellis, Culturally Situated Community Sensing, James Davis, Photos, Uncategorized
Communication / Programming
The nodes are now communicating with each other at a very basic level. They are also sleeping until requested. However, there are a fair number of bugs that must be worked out this week. I hope to have them all working in harmony to report to the base station and sleeping properly by next week .
Andrew Ellis has been working on the power supply and has settled on the schematic he wants to use. I have also been playing around (because I can’t help myself), and it all looks very promising. I will make sure that something is together, even if it’s not the final version, by next week.
Toby Michelena provided a buoy and anchor as we hoped that he would, although it’s a bit different from what was expected. It’s small and light, which is great in many respects, but being close to the water, we will have to be careful about the communications going under water. There is also no complex structure up top, so we need to be careful about snow and ice forming on top of the solar cell during the winter. This will inform the design of the enclosure. I hope to have a final design and something mocked up of this by next week.
The pump for the flow cell is still on order and should arrive next week. Once that is in, I can experiment with using a mesh to keep the pump from clogging, and build a small setup to channel water through the opening.
DaLi Shao was kind enough to provide the next generation of sensor and show me how it works. That will be hooked up, and hopefully tested with linearity & repeatability data by next week, though I make no promises. The turbidity and temperature sensors are languishing though.