Hacked Gadgets Forum

August 24, 2014

DIY Adjustable Electrical Load

at 10:15 pm. Filed under DIY Hacks

DIY Adjustable Electrical Load



Our friends over at Electro Labs have a  DIY Adjustable Electrical Load project posted. There are lots of adjustable load projects out there, they can come in handy when developing your next project so you should consider building one. The heart of this one is a IRF3710 MOSFET, it simply dumps the required energy into the large board mounted  heatsink.

“Since the MOSFET works as a resistive element, it dissipates heat depending on the current flowing through it. The simple equation P = VI gives us the amount of heat which will be generated on the MOSFET. To extend the power range of the load, we need to attach a heatsink to the MOSFET case.”


August 22, 2014

DIY Component Tester – Transistor, Capacitor, Inductor, Resistor Meter

at 8:05 pm. Filed under Cool Gadgets, DIY Hacks


If you are looking for a DIY meter project have a look at this DIY Component Tester (translated),  it tests Transistors, Capacitors, Inductors and Resistors. It is AVR based and is very flexible, in most cases you can just jam in a device and press the button to analyze the device.

“Automatic detection of NPN and PNP transistors, N-and P-channel MOSFETs, diodes, thyristors, inductors, triacs, resistors and capacitors.
Measure ESR with a resolution of about 0.01 ohms
Automatic calculation and display of the pins of the component under test
Detection and display of protection diodes for transistors and MOSFETs
Determination of the gain and the base-emitter forward voltage at transistors
Measuring the gate threshold voltage and gate capacitance of MOSFET
Self calibration process to improve accuracy”

August 19, 2014

Binary Wrist Watch

at 9:31 pm. Filed under Cool Gadgets, DIY Hacks, Electronic Hacks

 Binary Wrist Watch


Check out this great Binary Wrist Watch. It’s a true watch for the geek since most won’t be able to read it!

Via: Dangerous Prototypes

“The time setting mode can be entered by holding the left button for two seconds. After that the display is blanked and the time can be set bit by bit by switching through the bits by pressing the left button. If the bit is to be set, the right button has to be held down for one second. The watch automatically enters normal display mode after the last bit has been set (once you’ve gone through all the bits).”

August 12, 2014

Dummy Load Build

at 10:29 pm. Filed under DIY Hacks, Electronic Hacks

 Dummy Load Build


Wigman27 on the EEVblog has built a great looking Dummy Load. The nice and bright 4 line LCD display shows us voltage, current, resistance and power. This gives some great detail at a glance. The large lugs on the front and simple adjustment knob interface make this a great addition to your bench. The thread is interesting, he discusses the circuit design and shows some nice pictures of the bare PCB that was custom made for the project.


Dummy Load Build_2

August 9, 2014

Mini Solar Power Plant

at 7:39 pm. Filed under DIY Hacks

Mini Solar Power Plant


If you are concerned with having power when the grid is down this Mini Solar Power Plant project will allow you to build a that will help you out in a pinch.

“Arduino fan Kurt (from Kurt’s Arduino Projects), designed his ‘Mobile Sun Tracking Solar Power Plant to keep civilization running smooth. To get the solar panel to track the sun, Kurt used a cheap (little more than $1) LED flashlight and replaced the LEDs with three LDR photo sensors (each with their own shade).”



Mini Solar Power Plant_2

August 7, 2014

Voltmeter Clock Project

at 10:02 pm. Filed under Cool Gadgets, DIY Hacks, Electronic Hacks

Voltmeter Clock Project


If you are into cool clocks have a look at this Voltmeter Clock Project. It is based on the version that I built but has been enhanced with a ton of features such as master clock sync.

“I have used three voltmeters and mounted them on a wooden plinth with a clear Perspex cover to give the clock an industrial look.

I have modified Alan’s code to run on PICBasic Pro version 3. I have also added the following.

Switched display On and Off (keeping battery backup as per Alan’s design) but also allows me to turn meters Off in full power mode.

Synchronization to my Master Clock every 30 seconds

Synchronized LED & Re-Synch LED

Synchronization On & Off

Transistor meter drivers

Separate hourly Chime Circuit

Pulsed “tick tock” seconds sound.”


Voltmeter Clock Project_2

July 30, 2014

µVolume USB Volume Control Project

at 7:55 am. Filed under Cool Gadgets, DIY Hacks, Electronic Hacks

µVolume USB Volume Control Project


This neat µVolume project by Rupert Hirst of RunAwayBrainz allows you to control your tunes with a nice big knob that uses a rotary encoder to get the user input. You can see the previous version in action below.

Via: Electronics Lab


              Arduino Compatible (Atmel Atmega32u4)
              Manual volume adjustment using the rotary encoder
              (IR) Infra red  remote control of volume and multimedia controls.
              Apple remote or user defined
              Visual and audible Feedback
               RGB Lighting Customization’s”




µVolume USB Volume Control Project _2

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