Instructables
video Led Voltmeter
 This is my voltmeter with ICL7107,I have found this project  on the web here is link 
More pictures in full size you can see it here
sorin03064 years ago
hi
the Segment Sinking Current of the ICL7107 is a maximum 8mA
but the Led display absorb over 20mA!!
who do you have resolve this problem??
compliment for your project .