http://www.8051projects.net/ Learn to make simple microcontroller projects, pic, 8051, avr and arm projects. download 8051 projects, tutorials, libraries, sample codes. join the microcontroller discussion forum and ask doubts regarding electronics. the best source for 8051 over internet. Mon, 01 Dec 2008 16:13:17 -0800 http://backend.userland.com/rss092 I am making a voltmeter using Keil uvision2. I have no idea how to start, anyone can help me ....The microcontroller receive digital data from ADC and <noauthor@nospam.com> http://www.8051projects.net/forum-t10070.html It looks nice arun why don't you add it to download? Ajay<contact@nospam.com> http://www.8051projects.net/forum-t10070.html Hello firefly,i have done the same project, but in assembly language, normal input is 0 - 5 V, in my other version you can measure 0 - 15 V with 8 bi Arun Kumar V<nura1002003@nospam.com> http://www.8051projects.net/forum-t10070.html Hi arun i have done the project in c programming and now i would like to use assembly languange but with little knowledge about it. As assembly langua firefly88<hujunhao88@nospam.com> http://www.8051projects.net/forum-t10070.html Hello Ajay,yes i can post my project in download section, i have a collection of my projects which i' ll post when the particular topic/concept aris Arun Kumar V<nura1002003@nospam.com> http://www.8051projects.net/forum-t10070.html Hi! Arun,I have a problem, my voltmeter display for the second decimal place is not stable. It keep changing. Do you have any idea why the display is firefly88<hujunhao88@nospam.com> http://www.8051projects.net/forum-t10070.html Hi firefly,Check the voltage input to the ADC.maybe the source to the ADC itself has ripples or is unregulated. If that is the case do the following:1 pdi33<islurpundalik@nospam.com> http://www.8051projects.net/forum-t10070.html Hi pdi33, I use ADC AD7896 and the circuit is in my first post. firefly88<hujunhao88@nospam.com> http://www.8051projects.net/forum-t10070.html And when zero volt my display will show 0.1V. firefly88<hujunhao88@nospam.com> http://www.8051projects.net/forum-t10070.html hi frefly,well, the ADC u r using is the fast type which uses successive approx. technique So there is bound to be some fluctuations in the reading.Fi pdi33<islurpundalik@nospam.com> http://www.8051projects.net/forum-t10070.html