Hacked Gadgets Forum

November 23, 2014

MagneBike – Magnetic Wheeled Robot

at 10:19 am. Filed under Cool Gadgets, Insane Equipment

MagneBike - Magnetic Wheeled Robot

 

The MagneBike is an interesting magnetic robot that is surprisingly flexible and can maneuver some crazy metal geometries.

“Locomotion Concept and Robot Design

  • Two wheels in a motorbike arrangement: better adaptation to the surface (flat or curved).
  • Magnetic wheel unit including lateral lifter/stabilizer arms. The lifter functionality helps to pass over step obstacles. The stabilizer functionality allows to drive sideway.
  • Five active DoF: front/rear wheel, front/rear lifter, steering unit.”

 


November 18, 2014

Self-Balancing Raleigh Chopper

at 3:36 pm. Filed under Complex Hacks, Cool Gadgets, Electronic Hacks

 Self-balancing Raleigh Chopper

 

It isn’t a simply task to make a self balancing anything. But if you are thinking of taking on the challenge has documented his design details for this Self-Balancing Raleigh Chopper that could give you a head start.

 

“Data from the IMU is read by the Arduino Mega 1280. I use a Mega 1280 because they are a lot cheaper online than the 2560, and about the same price as an Uno. They have several hard wired serial outputs which means I can conveniently use one of these to send motor control data to the Sabertooth 2 x 25 Amp power controller, and another to send data to the serial-LCD screen. The Deadman switch and steering buttons (actually brake levers from children’s e-scooters) when pressed will connect their respective Mega pins to ground. The deadman is for safety, if you let go of it all power to the motors will stop after half a second. Digital Pin 12 is connected to an LED. This LED stays lit on startup and goes out after a few seconds when the machine is ready to be brought “level” at which point it will start to balance itself. The potentiometer in the diagram is actually on the left handlebar and is a Magura 5K potentiometer “twist-grip” throttle handle designed for electric vehicles. Turning it makes the machine lean forwards a little, and so it starts to roll forwards. Let it spring back and machine will lean backwards a little and slow down. It makes a very effective method of controlling speed (as well as simply leaning like you would on a Segway).”

 


November 15, 2014

Shoulder Mounted Arduino Controlled Skull

at 10:34 pm. Filed under Cool Gadgets, DIY Hacks, Electronic Hacks

Shoulder Mounted Arduino Controlled Skull

 

Steven from Rimstar.org built an interesting spooky Halloween skull to scare anyone who walks by. The video below goes through the construction details.

“Two heads on a body are scarier than one so for halloween I mounted an Arduino controlled skull on my shoulder with the electronics in a backpack and a hand controller hidden in my hand with the cable running down my sleeve. The jaw opens, the eyes light up and it makes a scary sound.

The biggest issue I ran into was getting a sound synthesis that could be done by the Arduino while still using a servo. Most sound libraries I found either conflicted with the servo library or required use of an abstraction layer.

Luckily the Arduino comes with a tone() function that uses simple PWM to make an 8-bit type sound that did the job while not conflicting the the servo library.”

 


November 9, 2014

DIY Clothespin Piano for the iPad

at 6:28 pm. Filed under Cool Gadgets

DIY Clothespin Piano for the iPad

 

 This DIY Clothespin Piano is a fun project by from fiddlewax that will give you small physical piano keys to let you play songs on your iPad without tapping the screen with your fingers.

“Touchscreens are great, but when it comes to playing music on them, the lack of physical keys can be a drag. So I decided to round up some household stuff and make a piano keyboard that tricks the iPad into thinking it’s being played by your fingers (with the help of some clothespins and aluminum foil)! It’s quite easy to make a capacitive piano interface, and all told it cost me less than $5. All you need is some wooden clothespins, foil, markers, tape, rubber bands, stiff cardboard, and some patience to cut and piece it all together.”

 

November 8, 2014

Smart Mailbox Project

at 2:38 am. Filed under Cool Gadgets, Electronic Hacks

Smart Mailbox Project

 

If you have a mailbox outside your house you might have to look at it many times to check to see if your mail flag is up. Of course this isn’t a very efficient use of your time. Wouldn’t it be great if there was some type of visual indicator in your house that would alert you when the mail has arrived? Wait no longer, Bob from Galactic Studios has built a Smart Mailbox Project that will come to your rescue. He provides all of the build details so you can also build your own. It uses a 16F1825 PIC microcontroller and a reed switches and an IR beam to monitor when the door is open, when there is mail in the box and when the flag is up. Bob shares some of the learning events that he had along the way that lead to some modifications.

I think the next version needs to add more sensors! What about a weight sensor so Bob can know how much mail he has, it could even guess that a weight over a certain preset is a package. I am also thinking with our connected life you need to get some kind of notification on your smart phone that a mail event has occurred. :)

Thanks for the tip Jim.

“When the mailman comes and delivers my mail, a toy mailbox inside the house raises its flag. When I go out to retrieve my mail the toy mailbox lowers its flag. If I go out again to put outgoing mail in the mailbox, the toy mailbox is smart enough to know not to raise its flag. If anything goes wrong, like the mailbox door is left open or the battery is low, the toy mailbox waves its flag as a distress signal.”


November 6, 2014

EWaste 3DPrinter

at 10:53 am. Filed under Complex Hacks, Computer Hacks, Cool Gadgets, Electronic Hacks

EWaste 3DPrinter

 

If you think the price of 3D printers is hitting the floor check out what built for $60. About 80% of this EWaste 3DPrinter is recycled computer parts which is abundant and readily available.

“First of all, we learn how a generic CNC system works (by assembling and calibrating bearings, guides and threads) and then teach the machine to respond to g-code instructions. After that, we add a small plastic extruder and give an overview on plastic extrusion calibration, driver power tuning and other few operations that will bring the printer to life. Following this instructions you will get a small footprint 3D Printer that is built with about an 80% of recycled components, which gives it a great potential and helps to reduce the cost significantly.”

 

November 1, 2014

$100 DIY Car Computer

at 11:31 pm. Filed under Complex Hacks, Computer Hacks, Cool Gadgets, DIY Hacks

 

If you need some computing power on the go you might want to look into adding a car computer. Sentdex shows us how he does it on the cheap, the top of the great find is the $17 monitor. It has a Raspberry Pi as the heart, an ODB interface and a camera to loop record. An interesting power management system allows the system to detect when car power has been switched off and gracefully shut down the system.

Via: Hack a Day

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