Welcome to EnviroDIY, a community for do-it-yourself environmental science and monitoring. EnviroDIY is part of WikiWatershed, an initiative of Stroud Water Research Center designed to help people advance knowledge and stewardship of fresh water.
New to EnviroDIY? Start here

Reply To: Bizarre eTape Sensor Behaviour

Home Forums Environmental Sensors Bizarre eTape Sensor Behaviour Reply To: Bizarre eTape Sensor Behaviour


    Another low cost depth sensor, showing the problems with using “raw sensing”,  and the range is very small range 0-10cm and needs recalibrating evertime there is a power cycle. – https://www.vegetronix.com/Products/AquaPlumb/ – but my experiments have shown it has 

    My comment

    “Works pretty nicely, except after power off.
    Can’t take power off while in water – then reads 0.
    Seems as a capacitance based sensor, when powering up needs to baseline the capacitance – guessing on my part – that is needs to be out of the water. Once read a baseline capacitance, then it detects increase in capacitance, water crossing. If the baseline capacitiance could be read, and then programmed, maybe it could survive a power off. “