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i will show you how to make a led blink and use a usb port of the computer as a power source.
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Signing UpStep 1Materials
What you will need:
1] 555 timer
2] 1k ohm resistor x2
3] 100 ohm resistor
4] led{any color i used a green}
5] capacitor [depending on the blinking rate. see next step}
6] circuit board
7] usb male connector
8] 555 timer holder {whatever it is called}
1] 555 timer
2] 1k ohm resistor x2
3] 100 ohm resistor
4] led{any color i used a green}
5] capacitor [depending on the blinking rate. see next step}
6] circuit board
7] usb male connector
8] 555 timer holder {whatever it is called}
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If you like 555 timers, check out this 555 timer calculator.
A Few Questions:
How much current does this thing draw?
Are you using a schematic program? if yes, which one?
i did not use any schematic program.
i used paint to draw the schematic.
Or go to their website:
http://www.cadsoft.de/download.htm
There are more self flashing options these days as well, pretty much any color, alternate between two colors, RGB flash, RGB fade, and some amber that simulate a candle.
Only make mention, as there is much better chance of success, and save some money, in these tough times.