F... I've pimped the LED bar shield with a second shift register, but there seems to be a bug with the soldering. The LED bar shows the first pattern, and nothing more happens.
The Æthernet log of Danimath
Showing posts with label 74HC595. Show all posts
Showing posts with label 74HC595. Show all posts
Wednesday, August 15, 2012
Saturday, June 16, 2012
LED bar shield, Part I
The LED bar shield shall hold two shift registers 74HC595 and a LED bar with 20 LEDs; 16 LEDs of it will be used. The sketch shall choose randomly one of several patterns and run it five to ten times. Then it selects another one.
The first version of the shield was a disaster - the design was much too small. (And the distance were too small to be soldered by a smoker with old eyes ;-)). So I redesigned it with a larger PCB.
Here are some pictures of the first stage populated with one shift register:
The first version of the shield was a disaster - the design was much too small. (And the distance were too small to be soldered by a smoker with old eyes ;-)). So I redesigned it with a larger PCB.
Here are some pictures of the first stage populated with one shift register:
Subscribe to:
Posts (Atom)