At a certain moment in our lives all of us wanted to be a fire fighter. To simulate that effect, we created a super-awesome siren. With two 555-timer chips and lots of trail and error, we were able to create this awful noise.
We're sorry for all headphone users...
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Make a Spot Welder for Cheap!
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Turn a flatbed scanner into a camera
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Increase the power of a 5mw green laser pointer
How To:
DIY Stick Welder from Old Microwave Parts
How To:
Fix Dead Lithium-Ion Batteries That Won't Hold a Charge Anymore
How To:
Hack Your Electricity Meter
News:
Infrared LEDs Protect Your License Plate Number from Police Cams
How To:
Build a Remote-Controlled Water Gun (Or Flamethrower!)
How To:
Hack a WiFi USB Adapter for Better Reception
How To:
Make a PVC Hand Pump to Move Water, Compress Air, & Create Vacuum
How To:
Make a Super Cheap One-Way Check Valve
How To:
Quick-N-Dirty Circuit Board Repair: How to Patch Faded or Corroded Traces with Pencil Lead
How To:
Hack a coin operated laundry machine
How To:
Make a Secret Car Compartment
How To:
Mod Your Old iPod 30-Pin Dock into a Bluetooth Speaker for Your iPhone 5
How To:
Make a sneaky, snake spy camera that records video
How To:
Zap and revive old NiCad batteries with a mig welder
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Hack Smart Cards for satellite TVs
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Hack Software & Run a Trial Program Forever
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Make Siri Open Your Garage Door via Raspberry Pi
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Make a Spot Welder for Cheap!
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