Hacked Gadgets Forum

November 20, 2012

Analog Clock Voltmeter

at 5:43 am. Filed under Complex Hacks, Cool Gadgets, Crazy Hacks, DIY Hacks, Electronic Hacks, Funny Hacks, Insane Equipment, What Were They Thinking

 

What is the voltage on a AA battery? It would be around 1:30PM if you were using this voltmeter! A PICAXE 18M2 microcontroller is used to read an analog value, calculate what time it represents and then uses a stepper motor to spin the adjustment knob to have the clock show the voltage using the hour and minute hands. πŸ™‚

Read more about the Analog Clock Voltmeter

“The max input voltage for the ADC on the PICAXE 18M2 is about 5VDC. Β To tame the input signal for the PICAXE a simple 3:1 voltage divider (10K, 10K, 10K) was implemented. Β This limited the input voltage into the PICAXE to 4VDC. Β A trim pot was also used to adjust for the inputΒ impedanceΒ of the PICAXE and to help calibrate the measurement results.”

 


November 19, 2012

Lasershark – Laser Projector Project

at 7:52 am. Filed under Complex Hacks, Cool Gadgets, DIY Hacks, Electronic Hacks

 

Thanks to David Powell from the Baltimore Hackerspace for sending in some details about the Lasershark which is aΒ  Laser Projector Project. It uses a LPC1343 – 32-bit ARM Cortex-M3 microcontroller to run the show, make sure you watch the video below to see this thing in action!

“This board is intended to be a low cost open-source USB Showcard for folks who want to make their own 1 or 2 analog/ttl laser projector. To use it, you will need to make or obtain:

  • One or two lasers capable of TTL or (ideally) 0-5v analog modulation and power supplies for the lasers
  • Galvos, galvo amplifiers, galvo amplifier heatsinks, and a power supply for these components. For a cheap source of galvos, ebay is a good spot to check. I would suggest getting as high Kpps units as you can afford (at least 20).
  • Computer with usb port.”

 

 


November 18, 2012

Name the Thing Contest – 211

at 1:12 am. Filed under Contests

Β 

 

The prize this week is a credit card knife, it has a ton of features to get you out of a jam in a network closet or your next camping trip. This contest will run for one week (November 18 – 23, 2012). Ending time is based on central standard time. To enter, identify the item above and what it can be used for.

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 December 15, 2012

The item to guess was a Nixie tube calculator (Remington-Rand EDC-III Desktop Calculator)

The winner is Mark K. (there were 186 entries)

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Below is a picture of the prize.

 


POV Wheel Display for a Longboard

at 12:52 am. Filed under Cool Gadgets, DIY Hacks, Electronic Hacks

Β 

 

A ATTiny24 is running the show here. This POV Wheel Display for a Longboard from ch00ftech looks like it took quite a bit of time to put together. Those tiny surface mount parts on the home made board must have taken a steady have to get right! There are more LEDs than microsontroller outputs but instead of using a serial to parallelΒ  chip to do the work the LEDs are matrixed.

Via: Hackaday

 

November 15, 2012

8x8x8 LED Cube

at 12:49 pm. Filed under Cool Gadgets, DIY Hacks, Electronic Hacks

 

If you have been listening to the latest episodes of The Amp Hour you have probably heard of Club Jameco. Chris from Pyroelectro has checkout it out, he purchased the 8X8X8 LED Cube to check it out.Β  It is Arduino based and looks like a well thought of design. If you decide to give it a try it looks like you will need to set aside a large amount of time since the LEDs cube needs to be all soldered carefully by hand and the circuit board is perf-board based. I think a custom PCB would make this kit quite a bit better.

Check out the kit build here.

 


November 12, 2012

RoboBrrd by RobotGrrl

at 11:16 pm. Filed under DIY Hacks, Toy Hacks

 

We have seen RoboBrrd before but very soon you may be able to purchase your very ownΒ RoboBrrd kit! Check out this Indiegogo. If you can please supportΒ RobotGrrl (Erin Kennedy) in her quest to have this kit become reality since I can see this platform helping all sorts of youngsters get excited about electronics and mechanics. You can pledge as little as $1 and you will still get the warm and fuzzy feeling. πŸ™‚Β 

Click here to pledge.

 

November 10, 2012

Name the Thing Contest – 210

at 6:07 pm. Filed under Contests

 

The prize this week is a credit card knife, it has a ton of features to get you out of a jam in a network closet or your next camping trip. This contest will run for one week (November 10 – 16, 2012). Ending time is based on central standard time. To enter, identify the item above and what it can be used for.

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 December 15, 2012

The item to guess was a temperature controlled fan speed controller

The winner is Wim R. (there were 142 entries)

————————————–———-

Below is a picture of the prize.

 

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