Positron BASIC Community

There's this LED indicator based on the 74HC595 — has anyone worked with them?
I just don't know how to work with them.
I have a PIC16F628; they say you can use it via SPI.
Maybe someone has some experience with it?
Thank you.

The chips are 8 bit serial input shift registers.The data sheet explains how they work.
My guess is you will clock in a bit for each 7 segments and then enable the output.
I did something similar years ago and it worked very well.

Here is a link to the PCB.

https://aqtronic.com/product/static-drive-3-bit-7-segment-led-display-module-with-74hc595/

The link below shows how the displays may be connected to the IC. Although written for Arduino the description may help you.

https://wiki.geeetech.com/index.php/Arduino_7_segment_LED_timer_with_74HC595_module

A friend of mine made a very long PCB with a lot of 7 segment displays on it (side by side) with a 74HC595 for each display. If a certain number of 7 seg displays were required the PCB could be broken off at the required spot.
 
These displays don't strobe so they look good when taking a video of them.

I guess you will have to write your own code.
I once drive 45 relays using this method using similar IC's. I simply bit bashed three pins to the relay PCB.
 

Very easy to use with Positron's SHOUT instruction

Thank you all for your help; I'll try to write a program for it.