Maximum Number of Zones

[astrogerard]

3.3v instead of 5v is just to try to see if the problem is still there, the led's will be a bit less bright but you will still see them.

For connecting the resistors I made a (very quick) drawing which I will attach. Hopefully you can get the idea. 
Only 1 pull-up resistor is needed (so not on all hc595')

The 0.1 + 47uF should be as close as possible to the circuit and with short as possible wires. I would also put one on the connector plug adapter on where you connect the breadboard wires.

A personal note: Tomorrow I have to undergo a small operation so I might be offline for a few days.

--Gerard


** EDIT **  !!!  Error in attached drawing: Label Pi_14 is wrong, should be Pi_13 !!!