[Led display Digital Voltmeter question]

Does anyone actually built the 7107 based voltmeter project posted in this section in Eagle format?
I would appreciate if someone could tell me where the test probes should be attached on that board (should be the IC pins 30 and 31 ?).
Also, I would like to know how to set up the measuring range for 0-20v for this project. I guess there is some resistor to be changed like in the other projects.
Many thanks

[Led display Digital Voltmeter question]

Ok then. So what should I do to have the project working in the 0-20V range, displaying the measured value with two decimals? What is the value of R3 if not 1.2K? Is that 12K? Where should I connect the #5 pin for each display?
I'm sorry to bother you but I'm just a hobbyist and I don't know to make the calculations.
Thanks.

[Led display Digital Voltmeter question]

Hi MP,

Have used R3 = 1.2 Kohm 1% tollerance as described in the project page for 0 - 20 V range.
I have connected the pin #5 of the 2nd display (from left to right) to the R6 resistor.

Thanks for support and also for sharing this very useful project.

[Led display Digital Voltmeter question]

Hi guys,

Just finished to build this project for 0-20V range and it looks like I have a problem: instead of 12.00 V, for example, the display shows 00.12V, instead of 07.00 V it shows 00.07V and so on.
What should I do to make it show the correct value with two decimals?
Thanks.