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Two depth sensors for reliable depth measurement confidence
It is of course built on the fantastic ModularSensors, which I’ve forked and added to. It also use the extensible Modbus wingBoard with the RS485 on it – all of which are open source.
I haven’t described all the parts in detail yet, but I can do if anybody is interested in it.
One of the ways I test the software with specific configuration of sensors and features is to run them in a simulated low water stream – a jar of water, depth change is only evaporation, so a defined depth however the temperature varies by about 15C.
Part of the dataset I’ve made into a graph that shows the way that the Insitu LT500/SDI-12 and the Keller Acculevel/RS485 respond to a 15C diurnal temperature change in the water . The dataset was downloaded from MMW (all data delivered with the reliable data delivery feature)