P1220396.JPG
This instructable will show you how to make a super simple LED flasher. I was thinking about a mod where you could wire this up to an alarm circuit, and it would flash and make noise. If anyone figures it out, send me a PM or leave a comment.

Step 1: Parts

Gather the parts you need.

Step 2: Insert the 555 Timer into the Breadboard

P1220366.JPG

Step 3: Connect pin 7 to +6V

P1220367.JPG

Step 5: Connect Pin 6 and Pin 2

P1220369.JPG
Use a Jumper Wire.

Step 6: Connect Pin 2 to ground with the 10 uF cap.

P1220373.JPG
P1220376.JPG
This capacitor is polarized, so be sure to connect the longer pin to pin 2.

Step 7: Connect Pins 4+8

P1220377.JPG
Use a Jumper Wire. Once you connect them, connect pin 8 to +6V.

Step 8: Connect the + and - LED terminals in parallel

P1220383.JPG
Connect positive to positive, and negative to negative.

Step 9: Connect the - side of the LED's to pin 3 and the + side to +6V.

P1220391.JPG

Step 10: Connect the + side of the LED's to the positive terminal on the buzzer, and the - side to the - terminal of the buzzer.

P1220393.JPG
Use a Jumper Wire.

Step 11: Connect Pin 1 to ground.

P1220380.JPG

Step 12: Switch it on and see what happens!

P1220396.JPG
The LED's and the buzzer should switch on and off. If not, then check the circuit. Go through all the steps again and check your wiring.

Step 13: Schematic

P1220397.JPG
domints says: Mar 2, 2012. 11:21 AM
It's just next NE555 led flasher circuit. There are lots of these in the internet and in the Instructables. Only change is you connect 10 leds in parallel instead of one. Nothing creative.
Pro

Get More Out of Instructables

Already have an Account?

close

PDF Downloads
As a Pro member, you will gain access to download any Instructable in the PDF format. You also have the ability to customize your PDF download.

Upgrade to Pro today!