Re: LED driver type application: want to control Christmas lights


<ohspamit@xxxxxxx> wrote in message
news:1158432141.595925.308780@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
How do I? I want to use a personal computer to switch 2.5 V Christmas
bulbs on and off, individually. First, let me state: I have a very
crudimentary knowledge of electronics and an in-depth knowledge of
computer programming (of some kinds).

I understand there are "microcontrollers" and probably other kinds of
devices which are programmable. I know a computer must be capable of
turning on and off hundreds or thousands of switches. I'd prefer not to
break into my computer but to use an external i/o such as a USB port.
But I want it to control hundreds or thousands of light bulbs,
individually.

I think what you are wanting to do is treat the bulbs as a big memory
matrix, and in that you may look into a static memory controller. The bulbs
will be the bits in the array. Each bulb will need a set/reset flip flop to
light it or turn it off. Then you will just need to send the pattern from
you pc to the crude latch board to set what lights are on and then send the
next pattern to load it. Research into older static memory controllers. You
may have a big project on you hands. my 2c worth. JTT


.

Relevant Pages