Hacked Gadgets Forum

February 26, 2015

Homemade Electronic Drum Kit

at 9:04 pm. Filed under DIY Hacks

Homemade Electronic Drum Kit


If you are musically inclined a cool project would be to build some of your instruments. This Homemade Electronic Drum Kit by  is a great example of what can be developed with a bit of work. It looks great and is functional. 

“This first iteration is roughly modeled after the Roland V-drum. The main features I extracted were:

1. Piezoelectric pressure sensors for velocity-sensitive note triggering.

2. Mesh drum heads for quiet, responsive hits.

3. Dual-zone pads in which two sensors are connected to each jack. This allows for triggering two separate notes over a single cable. Usually the hits are divided as snare & rim, or cymbal & bells. This kit also features double kick pedals that transmit over a single TRS cable.

4. A drum brain that converts analog signals from the piezos into MIDI messages that a computer can recognize. Software then interprets the messages to generate musical output. In this case, I am using an Alesis Trigger I/O, which feeds into my laptop via USB.

5. Typical drum kit form-factor. Based on the number of inputs on the Trigger I/O, my kit features three dual-zone cymbals, two kick pedals, one hi-hat pedal & five dual-zone drum pads. A total of nineteen independent notes.”


February 21, 2015

Sega Cartridges Resurrected using some old Computer Chips

at 7:42 pm. Filed under DIY Hacks, Electronic Hacks, Game Hacks

Sega Cartridges Resurrected using some old Computer Chips


Dragao has a Sonic Cartridge that had some invalid instructions that would cause the game to crash at a certain point. The solution wasn’t to find a replacement game at the local flea market, he Resurrected the Sega Cartridges using some old Computer Chips. The game was originally loaded on 16 bit memory chips, not having any of these handy from the donor computer motherboards he piggy backed 2  8 bit memory chips to make it work. An Arduino was then used to blast the code onto the new chips.


Sega Cartridges Resurrected using some old Computer Chips_2


February 20, 2015

DIY Water Level Sensor Build

at 7:59 pm. Filed under Cool Gadgets, DIY Hacks, Electronic Hacks

DIY Water Level Sensor Build


Bob Johnson completed his DIY Water Level Sensor project. It can sense 4 levels of water, the results are transmitted using some Xbee devices. 

“The distance from my barn to the house is over 700ft. I used a 2.4Ghz yagi to send the signal to the house. This works great and no outside antenna is required at the receiving end. I have tried this setup at much smaller distances, and no yagi or directional antenna was required.

This setup has worked well for me. I use it to monitor my horses water trough. By eliminating the need for a micro-controller on the transmitting end and placing the Xbee in sleep mode, I have been able to run this setup for 10 months now on the same 3 AA batteries with the Xbee set in high power mode. “


February 19, 2015

Lost Signal RC Alarm & Lost Plane Finder

at 7:01 pm. Filed under Cool Gadgets, DIY Hacks, Electronic Hacks

Lost Signal RC Alarm & Lost Plane Finder


When your RC plane flies  out of transmitter range some of them are setup to start a slow bank so that it hopefully flies closer to you and you can reacquire communication. What if that fails and the plane comes crashing back to earth? This Lost Signal RC Alarm & Lost Plane Finder project will help you in this case. When your transmitter is not connected the buzzer will sound so you can find it a bit easier. Construction is a nice and compact point to point solder construction which means no PCB is needed.



February 17, 2015

DIY AC Watt Meter

at 3:28 pm. Filed under DIY Hacks

DIY AC Watt Meter


If you are looking to build a new project, this DIY AC Watt Meter would make for a useful device that can be added to your test bench.

“The microcontroller of the wattmeter is PIC18F252. Basically it reads the voltage and the current and calculates the RMS voltage, the RMS current and the average power. Then it interfaces with the LCD and shows all these values. It has a hardware SPI module which lets communicating with the MCP3202 ADCs. On the other hand it interfaces to the LCD over 4-bit or 8-bit interface.  The microcontroller’s master clock becomes 5Mhz when 20Mhz crystal oscillator is used. There is an onboard ICSP connector (J3) which is used to program the PIC.”

February 14, 2015

Valentines Day Slot Machine

at 7:57 pm. Filed under Cool Gadgets, DIY Hacks, Electronic Hacks

Valentines Day Slot Machine 


If you want your valentine to work for their candy hearts why not build them a slot machine to let them win them. I have seen little bits before but this is the most complex device I have seen built!

“Try your luck with the littleBits Slot Machine and win a handful of candy hearts for your special someone. This slot machine operates just like the real thing. Pull the lever to start the graphics spinning on three DC motors. As they stop spinning in succession, win big when three hearts line up. When the hearts align, so do three bright LEDs and three corresponding light triggers. This signals the servo-activated trapdoor to release a candy jackpot.”



Valentines Day Slot Machine

February 12, 2015

Completed Working Nokia 3310 Phone Multimeter Project

at 1:03 am. Filed under Cool Gadgets, DIY Hacks, Electronic Hacks

Completed Working Nokia 3310 Phone Multimeter Project_1


Remember the Nokia 3310 Phone Multimeter that we saw last month? Looks like there has been some massive work on the project. It is complete and looks like it works great. It’s fantastic to see a resistor plugged into the bottom of a phone!

Link with steps to build your own.



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