ParkingLotLust
Member
Ive got access to tons of different chips, just no microcontrollers, and I dont have the board to program a μC anyways. Is it possible to build a circuit (well, a few) that would, based on which input went high (+12v) (all on the same string of 50 LEDs):
a) turn them all on, one by one, then all off. So for example (o = off, O = on):
o o o o
O o o o
O O o o
O O O o
O O O O
o O O O
o o O O
o o o O
o o o o
b) light them all up to 40% brightness
c) light them all up to 100% brightness (thinking PWM for b and c?)
Note that not one circuit has to do all this, just as long as they can all be connected to the same strand of LEDs and not hurt eachother.
Im not looking for someone to design this whole thing for me (that would be nice though
), but links to other circuits or datasheets of chips that can do what Im looking for always helps.
PS. Although I appreciate you looking, please dont post things saying like 'Use a microcontroller' or 'it will be too hard'. Im not good at programming, and Ive never even looked at microcontroller coding, and thats not something I really plan on using anyways, so learning it to write a program to do this, when I can build it with other chips, seems like a waste to me.
a) turn them all on, one by one, then all off. So for example (o = off, O = on):
o o o o
O o o o
O O o o
O O O o
O O O O
o O O O
o o O O
o o o O
o o o o
b) light them all up to 40% brightness
c) light them all up to 100% brightness (thinking PWM for b and c?)
Note that not one circuit has to do all this, just as long as they can all be connected to the same strand of LEDs and not hurt eachother.
Im not looking for someone to design this whole thing for me (that would be nice though
PS. Although I appreciate you looking, please dont post things saying like 'Use a microcontroller' or 'it will be too hard'. Im not good at programming, and Ive never even looked at microcontroller coding, and thats not something I really plan on using anyways, so learning it to write a program to do this, when I can build it with other chips, seems like a waste to me.