Shake the Future shows us how to remove the internal buzzer of a small alarm clock and wire it to a much louder siren and strobe unit. This simple hack involves taking the small clock completely apart to get at the electronics that activate the internal buzzer. When the clock activates the alarm there is a small open relay that closes, with this wired in series with the siren the
Lots of people feel a bit down when we get less natural light in the winter months. SAD lights have been around for awhile and can be purchased from a few places but Luke Skaff decided to build one from scratch. His design allows for a light output that is closer to what you get in real sun. “I made two full spectrum ceramic metal halide light therapy lights
This project makes a Vintage MP3 Boombox with a few simple steps. By using an inexpensive Bluetooth MP3 player this old Candle Model JTR1296 Boombox can now be used to crank out some MP3 tunes direct from your smart phone. The boombox is a 12 volt DC player which can get power from D cell batteries, a 12 volt DC input jack or wall power (which is rectified using
This Car Horn Alarm Clock is sure to wake you up in the morning. Not sure if the volume would beat my Fire Alarm Bell Alarm Clock but either is sure to get the job done. The clock in this hack has a nice small motor that is activated to ring the alarm on the stock unit. A small transistor is used to drive a mosfet to handle the
Electricity is great, and it is even better when you design an electrical project start to finish including the electrical source. This system is broken up into 2 sections by RimstarOrg the first video above shows how to build a simple high voltage spinning ball bowl. It uses the velocity of the ball and the principle of attracting opposite charges to allow the ball to move from one strip to
Pax Instruments Inc is making an open source temperature datalogger. Charles made a great video going over the entire current prototype showing off the tech inside and reasoning behind many of the build and design decisions. The device is using a MCP3424 A/D, it has 18 bits of resolution so your measurements should be nice and accurate. There is also a lot of thermal management that has been done
Have a master lock that you forgot the combination to? Samy Kamkar shows us how to get in with a nice little motorized combo lock cracking device “Combo Breaker is a motorized, battery powered, 3D printed, Arduino-based combination lock cracking device. It is portable, open source, 3D models provided, and exploits a new technique I’ve discovered for cracking combination locks in 8 attempts or less, but in an even
