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relay help for my light bar on my truck can anyone help
well I have a semi truck and a light bar with 12 marker lights in the
bumper I am going to wire them 6 and 6 so when I turn on the turn signal they flash the right way 6 will flash right and 6 will flash left I would like to go further and make them flash in a seires 1,2,3,4,5,6, how do I do this. what relays do i need and or anything eles I would like them to start to flash in the center at number 6 and flash one at a time down to 1 and work there way to the out side of the bar so it would be 1,2,3,4,5,6 6,5,4,3,2,1,and start over again. left side right side |
#2
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relay help for my light bar on my truck can anyone help
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#3
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relay help for my light bar on my truck can anyone help
wrote in message oups.com... well I have a semi truck and a light bar with 12 marker lights in the bumper I am going to wire them 6 and 6 so when I turn on the turn signal they flash the right way 6 will flash right and 6 will flash left I would like to go further and make them flash in a seires 1,2,3,4,5,6, how do I do this. what relays do i need and or anything eles I would like them to start to flash in the center at number 6 and flash one at a time down to 1 and work there way to the out side of the bar so it would be 1,2,3,4,5,6 6,5,4,3,2,1,and start over again. left side right side I'd try alt.electronics group. they'd give you more answers and possibly an off the shelf solution |
#4
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relay help for my light bar on my truck can anyone help
karel wrote:
"Richard Lamb" schreef in bericht link.net... wrote: well I have a semi truck and a light bar with 12 marker lights in the bumper I am going to wire them 6 and 6 so when I turn on the turn signal they flash the right way 6 will flash right and 6 will flash left I would like to go further and make them flash in a seires 1,2,3,4,5,6, how do I do this. what relays do i need and or anything eles I would like them to start to flash in the center at number 6 and flash one at a time down to 1 and work there way to the out side of the bar so it would be 1,2,3,4,5,6 6,5,4,3,2,1,and start over again. left side right side Something with that many options would be easiest done with a micro processor and a dozen solid state relays. Bit of overkill, I should think. And not Jim's approach either. Otherwise, it's gonna get ugly with a bunch of TTL or CMOS LSI chips. Ugly? One CD4017 as a counter with the decoder built in, and a 555 as a free running clock oscillator. Then for each lamp a mosfet (much more reliable than a relay, and less expensive than solid state relay) and you're done. It ought to be feasible to build the circuit only once and have it drive both sets of lamps. And oh yeah, will be less perturbed from spikes & the like if you feed through an 7809 or so rather than straight from the battery. Add a multiplexer to select between the two operating modes. I can see that working. Ok, maybe not so bad after all. |
#5
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relay help for my light bar on my truck can anyone help
Tater Schuld wrote:
wrote in message oups.com... well I have a semi truck and a light bar with 12 marker lights in the bumper I am going to wire them 6 and 6 so when I turn on the turn signal they flash the right way 6 will flash right and 6 will flash left I would like to go further and make them flash in a seires 1,2,3,4,5,6, how do I do this. what relays do i need and or anything eles I would like them to start to flash in the center at number 6 and flash one at a time down to 1 and work there way to the out side of the bar so it would be 1,2,3,4,5,6 6,5,4,3,2,1,and start over again. left side right side I'd try alt.electronics group. they'd give you more answers and possibly an off the shelf solution The public safety/EMS market has lightbars of this nature that ARE off the shelf. Be a pinch to adapt it to what he wants to do. Just a matter of $$$. Google "arrowstick" or "arrowstik".. something like that.. Dave |
#6
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relay help for my light bar on my truck can anyone help
karel wrote:
"Richard Lamb" schreef in bericht link.net... wrote: well I have a semi truck and a light bar with 12 marker lights in the bumper I am going to wire them 6 and 6 so when I turn on the turn signal they flash the right way 6 will flash right and 6 will flash left I would like to go further and make them flash in a seires 1,2,3,4,5,6, how do I do this. what relays do i need and or anything eles I would like them to start to flash in the center at number 6 and flash one at a time down to 1 and work there way to the out side of the bar so it would be 1,2,3,4,5,6 6,5,4,3,2,1,and start over again. left side right side Something with that many options would be easiest done with a micro processor and a dozen solid state relays. Bit of overkill, I should think. And not Jim's approach either. Otherwise, it's gonna get ugly with a bunch of TTL or CMOS LSI chips. Ugly? One CD4017 as a counter with the decoder built in, and a 555 as a free running clock oscillator. Then for each lamp a mosfet (much more reliable than a relay, and less expensive than solid state relay) and you're done. It ought to be feasible to build the circuit only once and have it drive both sets of lamps. And oh yeah, will be less perturbed from spikes & the like if you feed through an 7809 or so rather than straight from the battery. SCR's won't work for the switching because it's DC powered. Once turned on, they won't go off until voltage crosses zero. Yep! I think we're going to have to call in an expert. Well I'm not claiming to have Jim's level of expertise. But that would perhaps be overkill too, for this simple project. BTW what's it to do with aviation? Who would want to carry all this flashy extra weight? Or is it to make sure the truck gets seen on the airfield? KA Haven't you heard? FAA is proposing turn signals on aircraft. Dan, U.S. Air Force, retired |
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