When deactivating the 4017 clock pulse (only one row lights up), the flickering stops, so I assume this is caused by the 4017. The whole thing is controlled by a Nano (powered through USB, but both the shift- register and 4017 are powered by an external voltage source) I got 2 issues I could use some help with: 1) I get a constant flickering of the LEDs Ive tried some delays, but it just seems to make it worse. See attached circuitry (During test only 8x8 is used and thus, only one shift-register).Įdit: Im using 2N3904, not 2N2222 as shown in the schematics, since my 2n2222s hasnt arrived yet. Rowbyte Data Glitch 2 Serial Code Code Below.
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