Firstly I would just like to say hello. My name is James and I'm from S.E London in the U.K.
I'm currently having a problem getting two or more shift registers to work on the Arduino Uno. I've learnt alot over the last few months, and any problems I've encountered I've muddled through and solved either by myself, or by reading this brilliant forum.
However, I'm totally stuck trying to figure out how to operate all or each output on two or more shift registers individually. I've read the 'shiftOut' tutorial, and I've also looked at some other peoples shift register projects on the internet, but I can't get them to do what I want them to.
Basically I want to create a bargraph display using LEDs, and I can achive this by using one shift register, but when I use two or more, they are copying what the first one does. I can understand that you are outputting 8 bits per SR which makes a byte. What I can't work out is how to operate the shift registers or bytes individually by turning on specific outputs or bits.
I think I must have the electronics engineers version of 'writers block' because it's just not sinking in. I'm blaming that on the long hours I've been working over the last couple of weeks lol.
I would genuinely appreciate any help or advice you guys have to offer.