neazoi
Advanced Member level 6
Hi, I have made the "Variant 2" of this frequency counter https://www.qsl.net/dl4yhf/freq_counter/freq_counter.html
Because I had a 4 digits display and I wanted the 100's Hz to be displayed, I ignored the D1 connection, and I connected D2 to first digit, D3 to second digit, D4 to third digit and D5 to fourth digit.
The problem is, that the last digit is not completely blanked (the segments that should not lit).
So I see some segments that are a bit bright (actual reading) and some others that are dim, which should be off.
This happens only in the last digit, the one that is connected to the transistor.
Can you help me with this problem?
Because I had a 4 digits display and I wanted the 100's Hz to be displayed, I ignored the D1 connection, and I connected D2 to first digit, D3 to second digit, D4 to third digit and D5 to fourth digit.
The problem is, that the last digit is not completely blanked (the segments that should not lit).
So I see some segments that are a bit bright (actual reading) and some others that are dim, which should be off.
This happens only in the last digit, the one that is connected to the transistor.
Can you help me with this problem?