Hacked Gadgets Forum

November 23, 2013

Name the Thing Contest – 244

at 10:06 pm. Filed under Contests

 OP200 SMD

 

The prize this week is an Arduino Pro Mini. This contest will run for one week (November 23 – 29, 2013). Ending time is based on central standard time. To enter, identify the item above and what it can be used for. Please note the image above is a side view of the thing.

Please do not give the answer in the comments.

Send an email to contest @ hackedgadgets.com with “Name the Thing Contest” as the subject, and the message body consisting of:

  • The name of the item in the above picture
  • An example of what the item pictured above can be used for

The winner will be chosen at random from all of the correct entries.

———————————–———-

Added January 24, 2014

The item to guess was a SMD LED.

The winner is Farzad B. (there were 217 entries)

————————————–———-

Below is a picture of the prize.

arduino_mini


Camera Trick Pictures

at 9:41 pm. Filed under Funny Hacks

Camera Trick Pictures_1

 

Have a look at the picture above and see if you can see that camera trick that is involved here. To see what is not quite right in the picture and to see some other examples click the link below!

(more…)


November 22, 2013

DIY Pick and Place Machine

at 4:42 am. Filed under Complex Hacks, DIY Hacks

 

Brian Dorey is working on a DIY Pick and Place Machine that look like it is coming along very well. You can see the full build log of the machine on his site here. You can see some information here about the vision system that will be used.

“The component selector is controlled via an Arduino Mini and this interfaces to a Smooth Stepper Ethernet board which is controlled via Mach3 on the Windows PC. The custom app we have written uses a CSV config file of the components to place and this is then converted into the G-Code needed by Mach 3 and also other commands to control the suction relays, LED lighting and camera control and the Arduino powered component selector system.”

 


November 20, 2013

Inside a Motion Activated Wrist Light

at 4:06 am. Filed under Cool Gadgets

 Inside a Motion Activated Wrist _6108

 

I find it interesting to see how inexpensive electronics are constructed. My daughter got this Motion Activated Wrist Light at a school event. All of the kids were wearing them so that every time they clapped in rhythm the entire arena was flashing with a pulse of light. She no longer wanted it so I thought it would be interesting to see what made this simple thing work.

The sensitivity is quite good for a disposable item. I am thinking the vibration sensor is something like this Sunrom Model: 4073, you can see by the picture below this sensor has a solid center pin that is surrounded by a spring. This allows the sensor to remain open no matter what orientation it is in and the spring will move back and forth when it experiences a shock allowing it to short to the center shaft. Only drawback to this design is that it won’t be very sensitive when it gets a shock in certain directions however the wrist light seems to be very sensitive no matter how it is bumped.

The construction is very simple, there are two stacked coin cells as the power supply. I didn’t do a full circuit dissection but I think it is quite obvious how it is laid out. When the light is moved the vibration sensor shorts which charges the caps and biases the transistor which drives the LEDs. As the capacitors discharge the base voltage slowly decreased allowing the LEDs to dim slowly until they turn off.

 

 

vibration_sensor_2   vibration sensor

 

 

 

 

November 18, 2013

Wire Bonding

at 11:31 pm. Filed under Insane Equipment

 

If you have never seen wire bonding in action you have to see this. Gold is the most common wire that is used for bonding but the wire is very thin so there isn’t much gold wire by weight that is actually used. Check out the 1:20 minute mark to see a how the wire is actually shaped and formed as it comes out to add the bends that might be needed to get exactly the right shape of wire.

 

Gold Wire Bonding_2

 

Gold Wire Bonding_3

 

Gold Wire Bonding_4

Gold Wire Bonding


November 17, 2013

Hard Disk Clock by Martin Stromer

at 3:49 pm. Filed under Crazy Hacks, DIY Hacks, Electronic Hacks, Insane Equipment

Hard Disk Clock by Martin Stromer_3338278

 

Martin Stromer made a great looking Hard Disk Clock that is actually very easy to read and looks like a great art piece at the same time. It is based around the ATMega16 Microcontroller.

“The time is set by turning the disk and setting the read/write head to the desired time by hand. Then you push the reset button on the back (the upper one of the tree on the back) and the clock measures the position of the indicators and sets its internal electronic quartz clock accordingly. For measuring the hour I painted a binary pattern onto the backside of the disk which is illuminated by infrared LEDs and detected by matching infrared light sensors.

For detecting the set minute the read/write head is driven to the outside of the disk until it interrupts the a light barrier. The steps necessary for that are counted, the internal clock is set and the head is driven back to its previous position.

Because the current time is stored in an internally the time display can be restored if it was changed by accident. This does the middle button on the back. Pushing it will turn the disk and move the head to the correct position.”

 

 

 Hard Disk Clock by Martin Stromer_3338298

Hard Disk Clock by Martin Stromer_3338288

November 16, 2013

Name the Thing Contest – 243

at 7:29 pm. Filed under Contests

 guess_this_243

 

The prize this week is an Arduino Pro Mini. This contest will run for one week (November 16 – 22, 2013). Ending time is based on central standard time. To enter, identify the item above and what it can be used for. Please note the image above is a side view of the thing.

Please do not give the answer in the comments.

Send an email to contest @ hackedgadgets.com with “Name the Thing Contest” as the subject, and the message body consisting of:

  • The name of the item in the above picture
  • An example of what the item pictured above can be used for

The winner will be chosen at random from all of the correct entries.

———————————–———-

Added January 24, 2014

The item to guess was a Multi Drive Enclosure.

The winner is Travis S. (there were 253 entries)

————————————–———-

Below is a picture of the prize.

arduino_mini

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