Hello, I have been trying to make an EC Meter using arduino following the instructions from this website: https://www.instructables.com/id/Arduino-Water-Pollution-Monitor/ I tested the probe by making an LED glow but when it comes to the readings, I'm getting 5V or numbers very close to 5V for any…

Post details of your project (not the images in the link, images of YOUR project). Which liquids did you try? That's anyway a VERY crude EC sensor, will only give very rough results.

Came here from the instructable. Do you have any other recommendation for EC meter for accurate results?

Schematic is in the .cpp file of the library I have improved versions of this board in development (EC + pH sensor; also have a few simple EC only boards on hand).

Thanks. The schematic is simple and good but I wanted a rugged waterproof solution so would be choosing EC Sensors from below https://www.ebay.com/itm/254277104876 [image] Wireless Water Quality sensor EC Electrical Conductivity Meter Arduino... Find many great new & used options and g…

Interestingly, the Instructable never shows the result of soldering stranded copper wire to nichrome wire. It is next to impossible to solder to nichrome wire because of the nickle and the chromium. You need to either use a crimp connector or spot weld the two wires together. You will find you cann…

EC Meter

Other Hardware Science and Measurement

wvmarle October 24, 2019, 2:29pm 6

annleemrs1_4_198_9:
Wireless Water Quality sensor EC Electrical Conductivity Meter Arduino Compatibl | eBay

"not included: sensor probe".

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EC Meter

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