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TONITIJUANA said:i"ll like to know how or where can i get a longe range tx/ rx for a proyect that i need to make it must have a long range recepcion i just need to get a output voltaje on the receptor when i push a buttom on the transimter
please help me on this thanks
Hi,
Can any body design a circuit to detect over and under voltage ( AC 230V ) using LM3914 IC. I have the design idea which get help . We can use the AC voltage variatin ( 200 - 270 AC ) to input pin No. 5 of the LM3914 and can detect the output from pins 1 and 9 to 18. Leave the lowest and highest output pins and bridge the other outputs with a 1N4007 to a single output to activate a SCR. Lm 3914 should wired as a dot generator.
Thank you.