Hacked Gadgets Forum

February 19, 2007

How to make a dual-supply RS-232 to TTL level converter

at 3:32 pm. Filed under DIY Hacks, Electronic Hacks

With some free samples from Maxim/Dallas you could build this on the cheap.

“I had a little bit of free time to work with the MAX3222 chips that Dallas Semi sent me. These have all of the features of the MAX232 (two TX and two RX channels) as well as shutdown and output enable. The best feature is that the chip can operate from 3.0V to 5.5V so it can be quite versatile in connecting both TTL and LVTTL devices via serial port. I ended up making a small board that has a female db9 connector and has the RX, TX and power leads for easy access.”

Thanks Nick.


TouchTimer EggLight

at 1:41 pm. Filed under DIY Hacks, Electronic Hacks

The EggLight is a high tech light. Inside that tiny egg like housing is a microcontroller that powers an LED. A simple code based touch sensor was designed to turn the light on. To see more projects by Proteus have a look at his site.

Video after the jump.

“This is a Bedside Night Light I’ve built for my girlfriend according to her valentine’s specifications (hahaha I’m NOT kidding):

+It had to be small
+Portable soft lighting for “stealth home navigation” at night
+It had to be COOL !

The Design:
ping-pong ball + generic_product_cap + capacitive_sensor_made_with_a_pic = EggLight !

The Capacitive touch sensor itself is nothing more than… CODE =D (and some resistors)

You see, each Pin (well most of them anyway) in the PIC microcontroller can be programmed during runtime to be INPUT, OUTPUT(HIGH or LOW) or just to be FLOATING on a tri-state condition…

What you need to do is (look at the schematics so you’ll understand)
+Put Pin on High (gp_0)
+Let it Float (gp_0)
+Wait some time and read it’s value with same pin or another one (gp1)

if a person is holding his finger between the finger contacts the capacitance of the pin is greatly increased , this way the gap of time that the Pin will take to discharge (during float) will be much larger than normal operation (no finger)… now look at the code below using two pins:”

Thanks Diego.

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3style Mouse

at 11:29 am. Filed under Computer Hacks

This 3style Mouse is one cool looking mouse. Some creations seem to stagnate in one form, I think this is what has happened to the typical mouse. It is nice to see some new ideas being brought forward in the pointing technology arena.

Video after the jump.

“The 3style Mouse works on the desktop or a mouse pad just like a normal mouse, except that you can spin it and use it an any angle.

The small white arrow shaped button is the orientate button. Pressing this button while the arrow points forwards on your desktop sets that as the ‘up’ direction for pointer movement on screen no matter how the mouse is rotated. This only needs to be done once for any particular desk or working environment.

The mouse can be rotated with one finger like a video or audio ‘jog wheel’ or you can ‘flick’ it and it will spin freely. You can continuously rotate the mouse this way, unlike with a scroll wheel. Rotating the mouse needs only a very light touch.

Because the mouse can be used at any angle you can also use the buttons at any angle. There is one ‘push’ button which can be operated from any part of the top of the mouse, and a series of ‘squeeze’ buttons which also work from any angle to give a ‘right click’.”

Thanks Laurence C.

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DIY Laser Beam Analyzer

at 8:21 am. Filed under Complex Hacks, DIY Hacks, Electronic Hacks, Insane Equipment

You will have to put aside 5 or 6 hours to understand this project! Good thing is that it comes with a 115 page manual! I would bet that David is the first to publish plans for a DIY Laser Beam Analyzer.

“The laser beam spot is the tool in laser welding cutting. Industrial lasers are really great, but there’s a huge problem when it comes to knowing the state of your tool. I mean, in a normal milling machine the mill bit can visually be examined to see if a part of the edge is chipped off. But how does your beam spot look? How is your beam quality? You might have pretty good idea of how good the beam quality is but the truth is: You don’t know. You can’t just look at the laser beam an tell. First of all trying to look at a laser beam without the right safety measures could seriously harm you. Secondly, if you’ve got these measures in place, theres nothing to see. Here’s a guide on how you can build yourself a laser beam analyzer! Get going! It’s great fun!”

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Making of CoilOsapien – Robosapien Coil Gun

at 5:18 am. Filed under Complex Hacks, Insane Equipment, Toy Hacks

Remember the video we featured last week? Well the CoilOsapien (Robosapien Coil Gun) is done, look here for all of the details.

“When the servo is activated it turns the disc inside the housing, with each spin it will pick up one BB and drop it into the firing chamber. The coilgun will need to be on a slight angle whilst reloading to allow the BB to roll to the back of the chamber. The reload would function better if it could be setup behind the coil to drop the BB directly into position, this would also allow loading in any position. Due to the fact there was not enough room to mount it back there I went the easier less functional alternative.

The following list is what I used for the hack, there are many substitutes you could make here.

* At least one disposable camera with flash
* 4 x photo flash capacitors (I salvaged mine from 3 other disposable cameras)
* 0.4mm enameled copper wire
* 2 x Ball-point pens (just the casings)
* Electrical tape
* A small servo
* 2 x 5v regulators
* SPST relay (Higher current handling if possible)
* SPDT relay
* LED
* AA battery holder
* 2 x softdrink lids (plastic)
* laser module (any type will do)
* small magnet
* 2 x empty film canisters
* Hot glue (this was my best friend!)
* Hookup wire (some heavy duty, some light duty)”

Thanks Marcus.

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SparkFun BlueSmirf Radio Controlled Tank

at 1:27 am. Filed under Computer Hacks, Electronic Hacks

Chris sent in his Radio Controlled Tank that is controlled by a SparkFun BlueSmirf module. Anyone interested in the plans to build your own?

Update: Chris provided a link with more details.

“I made the chassis completely out of a sheet of brushed alu. It uses the Tamiya twin motor gearbox, a PCB of my own design, a BlueSmirf radio from SparkFun and has two servos to pan/tilt a video camera sitting on top. I wrote software so the whole thing can be controlled with a web interface that the video doesn’t demonstrate. If there is interest I may document but there is none as yet. :)”

 

February 18, 2007

Hacking the Nintendo Wii Console

at 12:11 pm. Filed under Crazy Hacks, Funny Hacks, Game Hacks

It’s funny how these security experts can pick apart the Nintendo Game Cube and Wii security implementation. Have a close look at the connector in the picture, that’s right it says ‘insert modchip here’…

Video after the jump.

“Interesting if not long-winded explanation of DVD Security on Nintendo’s Wii

Cover’s everything from Nintendo’s original flaws in the Gamecubes copy protection and extensively covers the Wii’s security procedures, well worth a watch if console hacking is your thing…..”

Via: Hack a Wii

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