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Topic: Interfacing TDS/EC Tester/Meter (Read 1 time) previous topic - next topic

Mobd3

unfortunately all control lines of the LCD give me 3V (which is the VCC) whatever the meter is in water or not :(

now I'm trying to take the I/P of the sensor then search about a relation to give me the exact TDS


PeterH


So I bought a TDS Meter from ebay and it's a cheap one


Have you confirmed that the meter does actually work, before trying to reverse engineer it?
I only provide help via the forum - please do not contact me for private consultancy.

Mobd3



So I bought a TDS Meter from ebay and it's a cheap one


Have you confirmed that the meter does actually work, before trying to reverse engineer it?


Yes, it's working perfectly

winner10920

Even if you found which traces the output was on, how would you get that info? And the actual number is in the processor, the only info outside it is the i/o to the lcd

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