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Step 8Connecting it all together
Solder the 9 V battery connector where the battery is shown, with the negative (black) wire to pin 1 and the positive (red) wire to pin 8. We'll refer to these points later as "Ground" and "+9 V" (photo 1 and 2)
Pin 8 is connected to pin 7 through a 180 kilo-ohm resistor, and pin 7 is connected to pin 6 through a second a 180 kilo-ohm resistor. (photo 3 and 4)
Use a telephone wire to connect pin 2 to pin 6. (photo 5)
The 0.22 uF capacitor connects pin 6 to pin 1. (photo 6)
Pins 4 and 5 should be left unwired.
Pin 3 is our "clock" output
Solder the LEDs to the board and connect them together. Example: If you have 6 LEDs the positive (+) pin of LED 1is connected to LED 6 through the positive pins of LEDs 2,3,4 and 5 to the 6th LED (photo 7)
Take the output from the 555 (pin 3) and connect it to the positive side of the LED, through a 330 ohm resistor, and then to the ground (-).
Pin 8 is connected to pin 7 through a 180 kilo-ohm resistor, and pin 7 is connected to pin 6 through a second a 180 kilo-ohm resistor. (photo 3 and 4)
Use a telephone wire to connect pin 2 to pin 6. (photo 5)
The 0.22 uF capacitor connects pin 6 to pin 1. (photo 6)
Pins 4 and 5 should be left unwired.
Pin 3 is our "clock" output
Solder the LEDs to the board and connect them together. Example: If you have 6 LEDs the positive (+) pin of LED 1is connected to LED 6 through the positive pins of LEDs 2,3,4 and 5 to the 6th LED (photo 7)
Take the output from the 555 (pin 3) and connect it to the positive side of the LED, through a 330 ohm resistor, and then to the ground (-).
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