Btw - the 74hc165 shiftregister circuits i know from earlier electronic experiments, had a slightly different layout. There should be a 10k pullup between the SER pin and +5V of each shiftregister And a 100nF capacitor between Vdd and Gnd as close to the chips pins as possible. http://www.ucapps.de/mbhp/mbhp_dinx4.pdf
Thanks Buncan , good info and a nice PDF.
I assume you mean a ceramic 100nF capacitor ? ie a #104 (see PDF below if needed)
I had to do some googling for more info, so here it is for other noobs too...
SER is Pin 10 and also called QS or in MMJoy PCB layout's DATA NEXT
PDF below....
Pullup Resistor = a Resistor connected to 5v+ or 3.3v+ Pulldown Resistor = a Resistor connected to Ground (GND)
