LED Scanner
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From: CT
Car: 1989 Camaro RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 3.23 LS
LED Scanner
I'd like someone with electronical know-how to show me in lamence terms of how to build a basic led scanner.
12volt source. swoops from left to right in a loop of 6 leds (biggest led bulb 10mm?)
I saw a very basic one on thinkgeek.com but it uses i beleive a 3v source
ref: http://www.thinkgeek.com/geektoys/science/cca8/
basically just power to microcontroller then resistor then led it seems. but i read online and others show these more complex designs..
12volt source. swoops from left to right in a loop of 6 leds (biggest led bulb 10mm?)
I saw a very basic one on thinkgeek.com but it uses i beleive a 3v source
ref: http://www.thinkgeek.com/geektoys/science/cca8/
basically just power to microcontroller then resistor then led it seems. but i read online and others show these more complex designs..
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Joined: Jan 2006
Posts: 3,341
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From: Mooresville NC
Car: LOWERED ♦ CRIMSON METALFLAKE
Engine: ► 400 KUBES ◄
Transmission: 765R4
Axle/Gears: EATON POSI 4.56
Scan Plan
You can use that 3 volt scanner if you reduce the usual car voltage from its’ ~13 volts to 3 volts with this circuit.
R1 is a 120 ohm, 2 watt resistor.
Z1 is a 3 volt, 2 watt zener diode.
You might have to adjust the resistor value(s) and adjust the zener to match the wattage depending on the draw of the scanner.
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Happy Racing!
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If People Drove Any Slower They’d Be Going Backwards
.
R1 is a 120 ohm, 2 watt resistor.
Z1 is a 3 volt, 2 watt zener diode.
You might have to adjust the resistor value(s) and adjust the zener to match the wattage depending on the draw of the scanner.
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Happy Racing!
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
If People Drove Any Slower They’d Be Going Backwards.
Thread Starter
Senior Member
iTrader: (9)
Joined: Nov 2008
Posts: 898
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From: CT
Car: 1989 Camaro RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 3.23 LS
Re: LED Scanner
http://www.evilmadscientist.com/article.php/larsonkit
direct link to the makers, but since the 2 AA are put together i think that is a 3v source. I know a little about electronics so i want to do it right the first time. what i'll do is get the instructions of building it so you know what source of power were using.
direct link to the makers, but since the 2 AA are put together i think that is a 3v source. I know a little about electronics so i want to do it right the first time. what i'll do is get the instructions of building it so you know what source of power were using.
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