I have been trying to figure this out for the past 2 nights... I give in
I have a Uno with three 74hc595 connected. I have them in "serial" using pins 10(RSK), 12(Data) and 13(serial clock).
What I am trying to do is connect 24 relays to the shift registers. I then want to be able to turn each one on and off individually with a all-off command also available.
I would like to use ascii character serial input to do this, e.g. (A turns relay 1 on, a turns relay 1 off, B turns relay 2 on, b turns relay 2 off.....)
Is this possible or am I dreaming.
Thanks ahead of time for any help or direction.