Hacked Gadgets Forum

November 22, 2015

PCB vias made using Conductive Ink

at 11:46 pm. Filed under Cool Gadgets, DIY Hacks


When you are making some prototype PCBs it is quite simple until you go double sided, now you need to potentially solder through hole components on both sides, stick small wires in each via and solder both sides or insert small rivets in the holes. DIYyouwhere is playing around with a method where they attach a brush to the drill so that they can electrically detect when the metal drill bit drills through the PCB and hits the bottom layer of the copper. As soon as it detects contact the bit is retracted. They now use a syringe of conductive ink to link the copper layers together by squirting some ink in each hole.


November 17, 2015

HacKeyboard – Hacked Mechanical Keyboard

at 11:46 pm. Filed under Cool Gadgets, DIY Hacks

HacKeyboard - Hacked Mechanical Keyboard_3


So if you are looking for a neat keyboard mod I think you can take one or two of the ideas that you can see in the HacKeyboard and run with it. I really like the hidden USB storage drive which is mounted with a secret keyboard sequence. If the keyboard was just regular looking that would be very secure since who would think there was some secrets lurking inside this throw away peripheral. To jazz things up this version also has a key logger so you can see what secrets the users are hiding, there is also a USB hub for productivity and a light show to keep you entertained.




November 15, 2015

Internet Radio in an Antique Case

at 9:51 pm. Filed under Cool Gadgets, DIY Hacks

Internet Radio in an Antique Case



You can see the case above that Tony Flynn built the Internet Radio project around. The outside may look old but the internals are sporting a powerful Raspberry Pi. It uses your local wifi to tune in internet tunes.

“The radio is configurable by anyone and no programming skills are required.  All the stations and settings are stored in a text based configuration file which is stored on a USB memory stick accessible at the back of the radio.  When the user wants to change the settings or add new stations they remove the USB stick and edit the text-file using a laptop and any text editor.”


November 11, 2015

Analog Alarm Clock Siren Hack

at 5:17 pm. Filed under DIY Hacks, Electronic Hacks


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 system is ready to test. After you are complete it will be hard to sleep through your ringing alarm again.


November 3, 2015

Full Spectrum Light Therapy Build

at 10:24 pm. Filed under Cool Gadgets, DIY Hacks

DIY Sunlight Simulator Light Therapy Light wide


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 for my mom who has Seasonal Affective Disorder (SAD). They have a much higher color rendering index (CRI) and produce a more full spectrum output of visible light than fluorescent ‘SAD’ light boxes on the market. This allows it to be much more closely matched to the sun’s emission spectra than fluorescent and the vast majority of LEDs. Each light outputs 12,000 lumens and can hit the 10,000 Lux requirement.”


Cermaic metal halide bulb cool down

October 27, 2015

Vintage MP3 Boombox Conversion

at 10:57 pm. Filed under DIY Hacks, Electronic Hacks



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 a transformer and bridge. Watch the video to see the interesting ground connection via a high value resistor to main power. Since the mains power input is non polarized this can be 110VAC. I have never seen this before. Was this common practice in this era?

A battery input jack was implemented so the system could run from a rechargable LiPoly battery. To prevent discharging below the safe range a cheap warning buzzer which is common on quad copters would be a good addition.

The MP3 player that was used normally operates from a 5 volt USB connection, the case was removed to allow direct soldering to the power connections. A simple LM7805 was used to convert the players 12 volt DC supply to the 5 volts that the bluetooth device needed. The stereo has a mic input which was an ideal connection to pump in the tunes. The result is a great looking boat anchor of a player that cranks out the tunes in style!


October 20, 2015

Car Horn Alarm Clock

at 12:10 pm. Filed under DIY Hacks, Electronic Hacks


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 large current needed for the car horn.

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