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The circuit we describe an arrow of LED's that can be used in the car, the bicycle and several things that you imagine. The cost is very low, and even more difficult.
The circuit is based on an analogue oscillator and arrow of LED's.
The oscilator use four pieces, and the arrow ten pieces.
Lock the pictures.
The circuit is based on an analogue oscillator and arrow of LED's.
The oscilator use four pieces, and the arrow ten pieces.
Lock the pictures.
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Signing UpStep 1Take the parts
These are the parts:
Q1 - 01 transistor BC 548 (NPN, general use, silicon)
Q2 - 01 transistor BC 558 (PNP, general use, silicon)
D1,D2,D3,D4,D5,D6,D7,D8,D9,D10 - 10 Common LED red, yellow or green (I use the red)
R1 - 01 resistor, 1 megaohm x 1 / 8 w
C1 - 01 to 10 microfarads electrolytic capacitor x 16 V
B1 - 02 cells in series with low-battery.
Q1 - 01 transistor BC 548 (NPN, general use, silicon)
Q2 - 01 transistor BC 558 (PNP, general use, silicon)
D1,D2,D3,D4,D5,D6,D7,D8,D9,D10 - 10 Common LED red, yellow or green (I use the red)
R1 - 01 resistor, 1 megaohm x 1 / 8 w
C1 - 01 to 10 microfarads electrolytic capacitor x 16 V
B1 - 02 cells in series with low-battery.
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5
Dec 10, 2010. 10:54 AMWally_Z
says:
You could also probably make something using red lightbulbs, or 10mm LED's to make it like a real arrow sign. If you put a lot of red 10mm LED's on together, you can make it a larger sign. But you will need to increase the power and components to something that can handle that much electricity. An inverter is probably needed.
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6
Dec 11, 2010. 10:21 AMNemweb (author)
says:
good idea
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6
Jul 27, 2009. 1:29 PMNemweb (author)
says:
Yes, I use ubuntu =D
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Jul 26, 2009. 9:13 PMrocky430
says:
Ubuntu
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