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i am making a tachometer..
there are two problems
1) my lcd is not showing any data… it only shows black boxes…
2) my counter start counting as soon as i touch the output wire of my sensor.. even if there is no voltage at that point..
even the code given on this website of lcd interfacing is not showing any data???
guyz pls help me… i have to submit my project and it si not working…
POST THE CIRCUIT DIAGRAM THAT YOU HAVE MADE
OR ADJEST THE PRESET CONNECTER WITH THE PINS OF LCD 1,2,3 (mostly 10k)
OR CHECK THE DIAGRAM BELOW
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