petros

cross-posted from: https://lemmy.ml/post/432966

I am doing "prior art" research to find out what are reliable and open constructions of sensors (and controlling/recording) platforms used in citizen monitoring of environment.

Due to recent events in Poland, priority topic is river monitoring:

• water temperature,
• pH,
• conductivity,
• dissolved oxygen,
• turbidity,
• ORP (oxidation reduction potential),
• water level (sonar?).

Also, typical weather station sensors recommendations will be appreciated.

If you know about an active group dealing with river environment monitoring, please drop a link here – I will be happy to learn from them.

At this stage, I do not intend to start any deep R&D. I need to learn about good (best!) practices and appropriate hardware, so we can deploy a network of early warning checkpoints as soon and as cheaply as possible.

I am now working on some simple pole weapon prototypes. Spearheads and other pointy ends are mounted in an axial groove, fixed with two screws. It gives an advantage, if we need to be able to change configuration. Other than that, we may need a permanent fixture.

My idea is to use non-protruding rods and to fill gaps with some kind od resin / glue. It needs to be elastic enough to wthstad vibrations and hits, while rigid enough to transfer force to the shaft.

Any suggestions?