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Get Make: Magazine Issue 79
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Projects from Make: Magazine

High-Power Blinking LED

Make a high-power LED blink as a warning light, a robot eye or whatever else you might need.

  • By Simon
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High-Power Blinking LED
December 18, 2012, 10:42 pm PST

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Steps

  • Project Steps View All
  • 1. Materials
  • 2. Tools
  • 3. Schematic
  • 4. Finished project

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Step #1: Materials

NextPrev
High-Power Blinking LED

1: PCB; 2: Solder; 3: White LEDs; 4: Wire; 5: 10kΩ resistor; 6: Switch (it can be a momentary switch); 7: Battery holder for 4 AA batteries; 8: 10μF Electrolytic capacitor; 9: 555 timer (NE 555).

Step #2: Tools

NextPrev
High-Power Blinking LED

1: Wire clippers; 2: Soldering iron or gun; 3: Hot-glue gun; 4: Knife for stripping insulation from wire.

Step #3: Schematic

NextPrev
High-Power Blinking LED
  • Solder all parts together on a small PCB according to the diagram at left.
  • By changing the value of R1 you can change the speed of the LED's blinking. You can also add a 10kΩ potentiometer trimmer instead of R1.

Step #4: Finished project

NextPrev
High-Power Blinking LED

Here is a video of this project on YouTube.

Tagged circuits
Simon

Simon

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