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74HC595 shift register with LEDs bargraph output

Posted: Mon Sep 01, 2025 3:10 pm
by andeug
Hi,


I am working on a kitchen timer using an Arduino Nano, two 74HC595 shift registers, and 16 LEDs, but I'm having trouble determining which components to use. Would it be possible for someone to create an LED bargraph component, for example, and calculate automatically how many 74HC595 shift registers are needed? The LED bargraph should also have a customizable number of LEDs, and ideally should be made in 2D.

Am I missing anything? Does the existing Flowcode 10 library already have the components I need? LEDs are there, but not the 74HC595 component with individual LEDs (or an LED bargraph).


Andreas

Re: 74HC595 shift register with LEDs bargraph output

Posted: Mon Sep 01, 2025 3:40 pm
by medelec35
Hi Andreas
There is a 2D 7Segment 74HC595 component.
Select the Components ribbon, then then click on Search magnifying glass icon and enter HC595
All you will need to do is use the ShowSegments function.
Then you can control 8 LEDs in bargraph format. That will allow you to have 0, 1 or multiple LED's enabled.