Digital Voltmeter
This project gives you a digital voltmeter which can measure voltage from 0v to 25V DC. The values are displayed over the 7segment display. Atmega8 is used and the internal ADC is used to measure the DC voltage. The resistor network is used to reduce the input voltage to the 0-5v.
Circuit Diagram
Photo
Download Bascom code
12.28.2009 at 4:45 AM
hey.nice project...but do you have the code for the microcontroller??
1.01.2010 at 9:03 AM
very good thank.
1.06.2010 at 2:09 AM
is there any pcb for this voltmeter?
2.19.2010 at 5:28 PM
It is a nice project. I have a simpler already, but it is better.I made some modifications on Bascom code on my needs.Thanks
7.20.2010 at 8:34 PM
This is cool it is just what i need to get my self back into electronics after 20 years away. Is the source code available as it looks like just the thing i would like t build and then play with by adding other things eg temperature gauge.
Regards James
11.05.2010 at 6:44 PM
Nice project i like it. I tryed simulating this in proteus and i get weird symbols for some input voltages.
11.12.2010 at 6:36 PM
hi
very goooooooood . ok thanks
much
12.21.2010 at 9:28 PM
v.nice
is the code available i need it
3.06.2011 at 3:26 PM
good
6.17.2011 at 3:50 PM
Can there be an auto ranging mechanism in the circuit
6.29.2011 at 11:30 PM
IMHO the BASCOM code is not consistent with the schematic circuit. For this code,
PD0 should be connected with "c" segment;
PD2 -> "a";
PD3 -> "f";
PD5 -> "d";