PWM using PCA in AT89C51CC01

you first have to know how ADC works..

you can get some basic information about ADC here:
http://www.8051projects.net/adc-interfacing/introduction.php

Now ADC converts analog to an equivalent digital value. This digital value is measure of steps taken by ADC to reach that analog level. each step of adc provides the resolution of that ADC. if ADC is an 8-bit resolution so it has 255 steps, 10bit ADC h... Read Compelte post
Posted by ajay_bhargav on Mon Aug 16 2010, 06:07 PM

Resolution of ICL7106



thanks pdi,so that means i have to use 12bit ADC to match accuracy of 7106

... Read Compelte post
Other Tags: adc   accuracy   
Posted by nischay kumar on Sat Aug 09 2008, 05:41 AM

MAX192 ADC schematics?

well ..
it is generally preferred not to connect VREF to VDD.

mostly in case of sensitive ADC application u either use two separate power supplies... for Analog and digital sections or simply isolate digital ground from analog ground.

but if it is just an experiment... just add a variable resistor/pot (small value) between VDD and Vref.
u are also supposed to add a zero ohm impedance between your... Read Compelte post
Posted by shyam on Sat Aug 09 2008, 03:59 PM

MAX192 ADC schematics?

I'm using a Dallas 8051 (DS89C450) for my microcontroller project and it's working fine with serial and a LCD, but now I want to add a MAX192 seriel ADC to it. I have a rough idea of how to write the software for it, but I'm not sure on how to connect it to my board. (I'm a programmer, not an electrical engineer )

At the moment I use Port1 for the LCD and three pins on P3 to control the LCD. Port ... Read Compelte post
Posted by TB on Sat Aug 09 2008, 11:50 AM

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Hi Dave. Good to see you. Parole ?
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its AT89S52
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sir, i want embedded c code for ultrasonic sensor having buzzer interfaced with AT9S52
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i am making digital voltmeter using AT89C51, ADC and LCD 16x2,,, kindly someone please send me hex file in assembly language
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ExperimenterUK Avatar
Posted By ExperimenterUK
Sat Jan 13 2018, 10:26 PM
This is clearly an old design.A modern microcontr...
bastik Avatar
Posted By bastik
Sat Jan 13 2018, 09:38 PM
For now I don’t have much information about device...
ExperimenterUK Avatar
Posted By ExperimenterUK
Fri Jan 12 2018, 06:49 PM
Sometimes the Configuration word has to be program...
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Posted By ExperimenterUK
Fri Jan 12 2018, 06:30 PM
What exactly is your situation ?I very much doubt ...
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Posted By eddieprice
Fri Jan 12 2018, 04:32 PM
I am using a 16F84A for the first time and am havi...
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Posted By bastik
Fri Jan 12 2018, 10:37 AM
I have device with SAB80C535 microcontroller and I...
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Posted By ExperimenterUK
Fri Jan 12 2018, 12:01 AM
I tried to compile your 8051 version in Keil 5but...
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Posted By cjj20
Tue Jan 09 2018, 07:42 PM
I just think something is off in the checkgpgga fu...
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Posted By ExperimenterUK
Tue Jan 09 2018, 07:35 PM
Why do you think there is something wrong with it...
cjj20 Avatar
Posted By cjj20
Tue Jan 09 2018, 07:32 PM
Please help me correct this code #include ...