Hello I have this set of 7 segment (picture attached) previously I had a similar segment but the only difference was that this one has a colon between the 2nd and 3rd digit ...
The first problem is that the Decimals in this segment set doesn't work (which actually i am fine with because i dont need them)
but the main problem is that the colons (which I was expecting to be turned on when I applied VCC on D2 and D3 and Ground on DP pin) are turning on in reverse order that is
when I connect VCC to DP pin and ground to D2 the upper led of colon turns on and when I connect VCC to DP and ground to D3 the bottom colon turns on
my intention is to toggle colon with 1Hz frequency ... But i dont understand How can I do it while bieng able to multiplex the segment at the same time
I have attached my current schematic .... Any help will be appreciated. Thanks
edit: in my schematic Blink corresponds to DP pin