LCD Problem

[solmer]

Hi everybody,

I've followed the instructions about calibrating the LCD circuit but it doesn't works. I measure 4.9 volts at the pin 12 of the PIC16f676 but I can't get 4 v (Is 4.9 right?).

I'm experimenting another problems.... :

When i put a metal object the signals goes to the end and the green leds lights up but the led never blinks. Can I use this circuit for discrimination ? Is this circuit the same that shell TeknolijiEkibi shop?.
[youtube=425,350][/youtube]




Thanks in advance for your help.

All the best.


Linkback: LCD Problem

[Karadağ]

Hi solmer,

It isn't right. You have to measure approximately 4V. So, you have to set for  approximately 4V by trp4.

For your other problem, You can not use the this circuit for discrimination. Our discrimination cicuit different than this circuit. This circuit our old production.

Best Regards.

[solmer]

Hi, Thanks for your post. discrimination was driving me crazy    No I know the only way to get discrimination is getting the LCD circuit from the store.


All the best

[Karadağ]

Yes it is true,

If you want you can buy and use our discrimination circuit.

Best Regards.