Mbira
Well-known member
I have an Arduino microcontroller that is sending out three digital signals, ground, and +5v to four groups of four 595 shift registers. Each group will control 32 LEDs.
The arduino and the power supply is in a rack, and each bank of LEDs, and their four 595s will be on the other side of a 20' DB-25 cable.
Do I need a buffer between the digital pins out of the arduino when each pin splits into four? Can anyone point me to a simple buffer circuit to accomplish this?
I am doing this project (except using four 595s instead of two):
http://www.arduino.cc/en/Tutorial/ShiftOut
Thanks guys!
The arduino and the power supply is in a rack, and each bank of LEDs, and their four 595s will be on the other side of a 20' DB-25 cable.
Do I need a buffer between the digital pins out of the arduino when each pin splits into four? Can anyone point me to a simple buffer circuit to accomplish this?
I am doing this project (except using four 595s instead of two):
http://www.arduino.cc/en/Tutorial/ShiftOut
Thanks guys!