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How make a PIC based Voltmeter for 24 volt reg. Power Suply?

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terka

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16f84 voltmeter

Tha is.....someone can helpme please??

I want make a PIC based voltmeter using 16F84 /ADC0832 or 16F877A, but i dont know home make the circuit/schematic for this...

I have tipical power suply with a LM317T...

Thankz
 

make voltmeter

mm

I found a PIC Power supply in elektor magazine, link is this forum...aply search...jejejeje

it´s made with transistor...

Bye
 

voltmeter using pic

How about precise of you meter.
If you test voltage ranger beyond 256 grade,you should use two or three channel amplifer to generate 2/3 gain voltage,then input to ad0832
 

16f84 for voltmeter

If you use a 16F87x , you don't need to se an external ADC, just aply the 24V dc to a resistor divider, for instance use 1k and 4k in series, you'll get 5V at PIC ADC input, from a 25V input, the rest is just code.
 

bf245 16f84 voltmeter

Hello

Thank for you reply

I have 24v trafo...in DC there is 30 volt aprox....in the out of regulated part apear 29 volt....I want to make a volt/current meter with 16F84 and ADC0832 (2 channels) using a LCD module....

8 bit definition is possible...

I wait uoy reply

Thank
 

Re: 16f84 voltmeter

Hai Terka,
Try this project........nice and coooooooooool


waiting for your replay...............
 

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