View source for Water Depth sensing system

= Overview =
The level of the Lake varies after rain storms.  It would be nice to know how much, and to be able to review this information remotely.
A Raspberry Pi and a depth sensor should allow this to work given a fixed sensor at a "Known" depth.  The idea being to determine how much water is above the sensor at any given time.

The Raspberry Pi doesn't have an on-board ADC so an additional circuit is required to register voltage increases from sensors.

* [https://www.rototron.info/raspberry-pi-analog-water-sensor-tutorial/ This article] discusses the different ways sensors can be connected to the Raspberry Pi.
* [https://www.reddit.com/r/raspberry_pi/comments/6d59w8/how_to_calculate_water_depth_with_the_pi/ Reddit Discussion about water depth sensing]

= Water Depth Sensors =
* http://www.appmeas.co.uk/pi993-depth-level-sensor.html
* [https://www.apgsensors.com/about-us/blog/how-level-measurement-with-pressure-sensors-works How Level Measurement with Pressure Sensors Works]
* [https://www.youtube.com/watch?v=iru8tRwS7Yc What is a Pressure Sensor?]
* [https://www.youtube.com/watch?v=g_7txTdy-tg Water Depth Sensor using MS5540C and Arduino]
* [https://www.instrumart.com/categories/6123/level-transmitters?gclid=EAIaIQobChMIk7vEjvKO7AIVgo7ICh0SzAdPEAAYASAAEgLNBvD_BwE#filters=f409-1404 Level Transmitters]

= Technology Behind Pressure Sensors =
* [http://www.sensorsmag.com/sensors/pressure/fundamentals-pressure-sensor-technology-846 Fundamentals of Pressure Sensor Technology]

= Possible Alternate Sensor Technology =
* [https://www.adafruit.com/product/3397 Optomax Digital Liquid Level Sensor] - It's a Binary On/Off switch, but could be used to detect the simple presence of water at a given level in or below a building.  IE: Has water reached the joists?  Is water inside the cabin?

[[Category:Island Projects]]