Hacked Gadgets Forum

January 31, 2013

LED Logger

at 5:27 am. Filed under DIY Hacks, Electronic Hacks

LED Logger

 

Bogdan Raducanu from Electro Bob was curious how quickly LED strips reduce in intensity. Just like watching someone grow, LEDs dim over time very slowly. You can see how he built his LED Logger version 1 and the new version 2.

“Its PCB is developed from that of the ego box, replacing the 7 segment drivers with 8 channel high power drivers. Everything is based on tuxgraphics.org web client and someone has already done the task of making it work with Cosm (ex Pachube).

 

LED Logger_2


January 30, 2013

DIY Quadcopter powered by an Arduino Pro Mini Module

at 3:31 am. Filed under DIY Hacks, Electronic Hacks

 

Thanks to Alexandre for sending in his latest project, it is a DIY Quadcopter that is powered by an Arduino Pro Mini Module. He took out the original control electronics and did a brain transplant with a Arduino Pro Mini Module and a ton of sensors. Looks like it can fly very nicely, his next goal is to upgrade the microcontroller to an ARM7 stm32F103 (PDF) for more computing power!

“The various modules are soldered on a prototyping board. The unit is a bit heavy but the aircraft take off anyway.
Arduino pro mini module 16Mhz is used as the micro-controller. The voltage regulator is not used because the 3.7V lipo battery is connected directly above through capacitors to stabilize it. The motors are brushed type and are controlled by PWM (256 levels of accuracy) by SI2302 MOSFET which I added diodes. Two modules are used as sensors, MPU6050 (accelerometer / gyroscope) and HMC5883L (magnetometer).”

 


January 29, 2013

Telepresence on the Cheap

at 2:41 am. Filed under Complex Hacks, DIY Hacks, Electronic Hacks

_Telepresence on the Cheap

 

Do you work in an office where you sometimes telecommute? You may have a use for a Cheap Telepresence Robot that can be used to sit in one some meetings while you are relaxing in your boxers sipping a coffee. If you have the money to spend you can look into something that is more plug and play like the Anybot. If your company doesn’t let you telecommute why not try out what this guy did! Of course I am not promoting doing this unless you like the idea of getting paid 6 figures to surf Reddit, prowl for deals on eBay and update Facebook all day at work.

I am surprised these robots aren’t taking off since one was even spotted on Big Bang Theory. This one over at Nibbler has a base that is powered by an Arduino and a motor controller shield. The 3A motors can drive the thing around for around 15 hours on a charge. So I guess that means that you could probably come into work a few times a week to give your virtual self a charge. 🙂

Via: Hackaday

 

 


January 27, 2013

Name the Thing Contest – 219

at 12:32 pm. Filed under Contests

 guess_this_219

 

The prize this week is a breadboard power supply. This contest will run for one week (January 27 2013 – February 1, 2013). 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 Feb 2, 2013

The item to guess was a Panel Mount Amp Meter

The winner is Rune K. (there were 173 entries)

————————————–———-

Below is a picture of the prize.

 

 

PepGuard Self Defense Project

at 12:08 pm. Filed under DIY Hacks, Electronic Hacks

 

Many University campuses have blue light emergency stations people can go to if they are in distress. John Yin, Cordelia Lee and Adrian Tung have made a device that will do something that these stations can’t, their project can take and send a picture of the situation. The prototype device has a microcontroller, bluetooth module and a camera. When the take picture button is pressed it will snap a picture, save it on the smart phone that it is connected to via bluetooth and send it directly to an emergency number. The emergency number can be campus police for example.

This could be adapted to a door bell system by changing the bluetooth module to an ethernet module and have the captured image sent to your phone when someone is at your door. Of course this was a device that was built for a class project so the hardware devices needed to be used, if it was being designed from scratch I am thinking that the smart phone could be made to launch an application when a special button combination is pressed such as volume up twice fast. The application could take a picture, transmit video and audio, and send GPS coordinates of the phone to campus police. I guess the big thing here is for enhanced information, the receive end must be equipped to get it. Most provinces and states have spend millions of dollars to allow their 911 services to have the ability to receive the GPS locations of cell phones that call 911. Could the next upgrade to 911 include the ability to send live video and pictures?

Thanks for sending this in Bruce, to see more projects like this be sure to check them out here.

See project information here.


January 25, 2013

Raspberry Pi Dog Treat Machine

at 2:14 pm. Filed under DIY Hacks, Electronic Hacks

 

If you have a Raspberry Pi sitting on the shelf looking for a purpose have a look at this Raspberry Pi Dog Treat Machine project for some inspiration. The box allows you to feed Judd (a friendly and hungry dog). All you need to do is send an email to Judd and the box will dispense a treat to Judd, take a picture and email the picture back to the person who sent the initiating email. To make it work all you need to do is send an email to juddwouldlikeatreat@gmail.com. 

Click here to send Judd a Treat!

Via: Make

January 23, 2013

Hybrid Stepper Driver Module Repair

at 9:49 pm. Filed under DIY Hacks, Electronic Hacks

 

Mike from Mike’s Electric Stuff has a pick and place machine that he uses to assemble some of his projects. A short in the wires going to one of the stepper motors caused one of his motor drivers to fail. When he swapped one of the different drivers in place of the blown one it also blew. Most pick and place users would toss both of them in the bin and look for a replacement. Mike needed to get the machine up and running quickly so he decided to get into the hybrid case and do some looking around. Turns out that the mosfets are quite large and the damaged bond wire was quite obvious. He carefully installed a new external mosfet to replace the one that was blown internally and it seems to work just like new!

 

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