I've been Google-ing for what I'm trying to do and this thread appears really close so I'll try asking here...
I'm capable enough with building circuits but not really with the design...
What I'm trying to do for my son's motorcycle is build a circuit that will fade-on/fade-off the LED accent lighting he already has on his bike when it's parked... The LEDs are in strips of 6 SM LEDs in a silicon tube with appropriate resistors (looks like a SM with 301 on it, 2 per strip) to allow them to be run off a 12v circuit...
There are total of 6 strips that I need to control... Right now they are wired into a little aux "fuse box" under the seat with six 5 amp fuses, one per strip...
It looks like a timer circuit based off a 555 chip is my best bet but I'm unsure of the math to adapt the various circuits presented here to 12v operation and how to calculate values for the delays... Ideally I'd like cycle along the lines of 2-3 seconds of ramp up to full brightness, 2-3 seconds at full, 4-5 seconds dimming to off, 2-3 seconds off & repeat...
Can someone take a bit of pity on a non-mathematical sort and help me out with the values that I'd need? The kiddo always has a bit too much faith in the old man's abilities, but I think that I can fake it if I can get a little direction..
(Re-posted and re-worded from an 'attempted threadjack' )
-=- slp
I'm capable enough with building circuits but not really with the design...
What I'm trying to do for my son's motorcycle is build a circuit that will fade-on/fade-off the LED accent lighting he already has on his bike when it's parked... The LEDs are in strips of 6 SM LEDs in a silicon tube with appropriate resistors (looks like a SM with 301 on it, 2 per strip) to allow them to be run off a 12v circuit...
There are total of 6 strips that I need to control... Right now they are wired into a little aux "fuse box" under the seat with six 5 amp fuses, one per strip...
It looks like a timer circuit based off a 555 chip is my best bet but I'm unsure of the math to adapt the various circuits presented here to 12v operation and how to calculate values for the delays... Ideally I'd like cycle along the lines of 2-3 seconds of ramp up to full brightness, 2-3 seconds at full, 4-5 seconds dimming to off, 2-3 seconds off & repeat...
Can someone take a bit of pity on a non-mathematical sort and help me out with the values that I'd need? The kiddo always has a bit too much faith in the old man's abilities, but I think that I can fake it if I can get a little direction..
(Re-posted and re-worded from an 'attempted threadjack' )
-=- slp
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