Hacked Gadgets Forum

October 25, 2014

LG Flatron W2052TQ Monitor Teardown and Repair

at 1:43 am. Filed under Teardown

LG_FLATRON_W2052TQ_MONITOR_8570

 

After about 3 or so years my 3 20 inch LG Flatron W2052TQ monitors started failing. They were continuously powered on for their entire life and would simply go into sleep mode when the computers weren’t in use. You can see the repair video below that shows the 2 1000uF caps that were the culprit. At this time I have still to crack open the other 2 monitors but they were showing the same symptoms so I am sure the same 2 caps have also failed in them. When they were powered on they would come out of sleep mode with no issues and work fine, the issue was if they were ever unplugged and allowed to power down completely. The power on button would need to be pressed many time or the power cord would need to be plugged and unplugged many times over and over to get the panel to liven up. In the end they just didn’t turn on or they would just turn on for 10s of seconds before the panel just went black.

The teardown shows what I consider very poor build techniques. First of all the entire monitor is held together with plastic snap together construction. I would have loved to see some screws holding things together allowing it to be serviced easier. But what I was very surprised at was how the electronics cage was just floating inside the box. There is a bit of tape holding it in place and a few tabs on the base plate bracket. In the video at around the 25 minute mark you can see a poorly designed PCB mounting design. I could see this passing as OK if they were making a few hundred of these but I am thinking they make hundreds of thousands of these monitors.

You can see many pictures below, full res images can be found here.

LG I think your quality needs to be improved!

 

 

LG_FLATRON_W2052TQ_MONITOR_8631

(more…)


October 23, 2014

Kettle Cranked up to 10KW and Boils Water in 10 Seconds

at 2:06 pm. Filed under Crazy Hacks

 

Photonic Induction cranks up the juice on their kettle to 10KW, it lasted long enough to boil a cup of water in 10 seconds but it did self destruct during the speed round! Check out the 10 second toaster also. :)


Can Crusher Project Build

at 1:12 pm. Filed under DIY Hacks

 

If you need to crush a bunch of aluminum cans you might as well build a machine to do it. That is what we see on the Ben Heck Show here. After Ben bent through a bunch of design submissions a cool design was selected. A single stepper motor crushes a can with a 30 to one gear reduction it can crush the can but isn’t able to crush the can completely. Not that the final design is ready for production but the design steps are very interesting.

 


October 21, 2014

Halloween UFO Project

at 2:57 pm. Filed under Cool Gadgets

 

People who visit the house of Andrew Wyatt will have a surprise when they see his Halloween UFO Project! It comes to life using cardboard, tape, tinfoil, 8mm Diffused neopixels from Adafruit and an Arduino.

 

October 19, 2014

Free Fun Flexible Watch

at 10:55 am. Filed under DIY Hacks, Electronic Hacks

 Free Fun Flexible Watch 

 

Check out the F*watch! It is a Free Fun Flexible Watch design by a team of 15 people with various backgrounds, the watch is a challenging project since in the end it can’t be the size of a lunch box, can’t weigh a pound and can’t be plugged into the wall for power. All of the electronics fit into a tiny printed housing and looks very functional.  Check out the items that are stuffed inside listed below.

“F*watch is a fully open electronic watch project featuring an integrated GPS receiver. The development started at CERN as an after-work project to make a special present for a retiring colleague who likes hiking and timing. The full design (electronics, mechanics and software) is available under free licenses and the design is exclusively made with free tools.

  • Sensors
    • GPS
    • Pressure sensor
    • 3D-accelerometer
    • Compass
    • Ambient light sensor
  • I/O
    • 128×128 pixels LCD with backlight
    • Micro-USB connector, 4 Buttons
    • Buzzer, vibrating motor
    • MicroSD memory slot
  • Various
    • 500 mAh Lithium-ion battery, fuel gauge
    • 4-layer PCB”

 

 

Free Fun Flexible Watch_3

 

\Free Fun Flexible Watch_2


October 18, 2014

Fast Charging Batteries that last 20 Years?

at 8:44 am. Filed under Educational, Insane Equipment

 Fast Charging Batteries that last 20 Years

 

Apple is famous for making nice looking products that are practically sealed for life even though many of us consider the internal battery a serviceable part. Having to access batteries for occasional replacement might be a thing of the past. Also planning to charge items is currently something that revolves around many things, you probably plan to charge your phone while you sleep, your electric car gets topped up when you are at work, you have a few sets of batteries for your cordless power tools. Wouldn’t it be nice it charging took a few minutes instead of many hours? How about a battery that lasts 20 years, which is typically more than the entire usable life of the device? This might not be science fiction for much longer. Scientists at Nanyang Technology University have developed fast charging batteries that can be recharged up to 70 per cent in only two minutes!

Thanks for the tip John.

“In the new NTU-developed battery, the traditional graphite used for the anode (negative pole) in lithium-ion batteries is replaced with a new gel material made from titanium dioxide.

Titanium dioxide is an abundant, cheap and safe material found in soil. It is commonly used as a food additive or in sunscreen lotions to absorb harmful ultraviolet rays.

Naturally found in spherical shape, the NTU team has found a way to transform the titanium dioxide into tiny nanotubes, which is a thousand times thinner than the diameter of a human hair. This speeds up the chemical reactions taking place in the new battery, allowing for superfast charging.”

 

Fast Charging Batteries that last 20 Years_2

October 17, 2014

Capacitive Fluid Level Sensor

at 11:28 pm. Filed under DIY Hacks

Capacitive Fluid Level Sensor

 

If you need to determine the level of fluid you might think of some type of float switch system like what is typically used in a sump pit or a toilet tank. This Capacitive Fluid Level Sensor by uses a capacitive effect of the fluid to determine the level.

“The advantage of capacitive level sensors is that they can be used for basically any solid and liquid. They have no moving parts and scales incredibly easy. They make no contact to the liquid or solid being measured, and so can also be used for more corrosive liquids. The disadvantage is that they need to be calibrated for the liquid being measured. The capacitive level sensor has the 2 conducting plates in the form of 2 electrically isolated aluminium tubes, a smaller tube in a larger tube. The space between the tubes is the dielectric. When the tube is empty, the space is occupied by air. when the tube starts to fill, more and more of the space will be occupied by water. Water holds more charge than air and thus the capacitance will rise (mostly) linearly with the water level. “

 

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