2021 Jun 24, 06:55 AM
(This post was last modified: 2021 Jun 24, 07:05 AM by astrogerard.)
Yeah, that is expected behaviour when using fairly long wires (as you have on the breadboard) and not using decoupling capacitors on all the 5v connections.
I would start by putting a capacitor (e.g. 0.1uF) on every hc595 between pin 16 (5v) and pin 8 (GND).
On the breadboard itself between 5v and GND I would use a 47uF (more or less).
For more info see this and this
--Gerard
I would start by putting a capacitor (e.g. 0.1uF) on every hc595 between pin 16 (5v) and pin 8 (GND).
On the breadboard itself between 5v and GND I would use a 47uF (more or less).
For more info see this and this
--Gerard