Hacked Gadgets Forum

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. “

 

October 16, 2014

DIY LM1876 Audio Amplifier Project

at 1:46 am. Filed under DIY Hacks, Electronic Hacks

DIY LM1876 Audio Amplifier Project

 

Our friends over at Electro Labs has a new project out, it is a DIY LM1876 Audio Amplifier Project. As usual it is a start to finish project that has full details so you can build your own.

“This is an audio power amplifier based on LM1876 which can deliver up to 20W per channel into 4 or 8 ohm load and guarantees less than 0.1% THD + N (Total Harmonic Distortion + Noise).

The amplifier is powered by -15 0 15 VAC symmetrical supply. The full bridge diode rectifier and the smoothing capacitors convert the AC input to ±21 VDC which is used to power LM1876. The inductors on the AC input line reduces the noise arising from the mains line.”


October 14, 2014

AirWick Freshmatic Teardown – Bypass Protection Method

at 4:07 am. Filed under Teardown

  AirWick Freshmatic Teardown_8361

 

You probably have a few of these AirWick Freshmatic room fragrance sprayers in your house. One thing I noticed on the packaging was it could only be used with AirWick refills. I was curious how they could tell the difference between Airwick and generic refill canisters. Turns out there is a Vishay TCNT2000 Reflective Optical Sensor that is at the heart of their protection scheme. It simply looks for the black bars that are printed on the neck of the spray can. As the can is sprayed the sensor is watched to ensure the black bars move past the sensor when expected. If the bars aren’t present the system immediately flashes the red light indicating. You can see in the video below that it continues to monitor the sensor for about a second after the motor is turned off to ensure the plunger eventually moves back to the correct position. The build quality is amazing for a small throw away device. When you consider the device is basically free when you purchase a set of spray cans with the sprayer it reminds me of inkjet printers which were often almost free in the hopes that you will spend hundreds on replacement inkjet cartridges. 

If you end up with a damaged neck label which prevents a can from spraying or if you have some cans that don’t have the the barcode present you can download and print the barcode here, it is basically some 2mm black and white stripes.

 

AirWick Freshmatic Barcode for Can

 

 

(more…)

October 13, 2014

blueShift – An OpenXC LED Tachometer

at 9:53 am. Filed under Cool Gadgets, DIY Hacks

blueShift - An OpenXC LED Tachometer

 

Inside the custom 3D printed housing Pete Mills built a LED Tachometer which gets engine data from a Open XC ODB2 module via bluetooth. It is looking for RPM and headlight status data from the module to update the user display. The headlamp status is used to dim the LED display when the headlights are automatically turned on by the car.

“An Arduino, some addressable LED’s, a bluetooth module, code and a 3D printer come together to make blueShift – An OpenXC LED Tachometer.  blueShift is so named for the Bluetooth protocol used for data communication, and the use of a tachometer to indicate when to shift your car.”

 

Internal Links:

Categories:

Search:

Google
Hacked Gadgets
Web

Site Sponsors:

Nuts and Volts Electronic Labs Trossen Robotics Free Technical Publications Blue LED

 

Recent Comments:

Site Rating:

More RSS Feed Options

Site Sponsors:

 

Interesting Sites:

Site Videos:

Incoming Links: