Hacked Gadgets Forum

March 26, 2009

DIY Weather Station Project – PIC 18F452 Based

at 5:42 am. Filed under Complex Hacks, DIY Hacks, Electronic Hacks


Knowing the current weather condition is nice. Instead of turning on the TV and turning to the weather channel why not spend a few weekends and build your very own DIY Weather Station Project. It is based on the PIC 18F452 microcontroller and has great documentation.

“Weather station with pressure reading, relative humidity, indoor & remote outdoor temperature display.Both Celsius or Fahrenheit & mbar/hPa or mm Hg supported. With calendar & clock. Easy 3-button user-menu. 42 hour-history display (curve). Auto-memory & display of all high and low-values. PIC 18F452 running at 4 MHz, power saving sleep mode. Sensors are only turned on when needed.”


March 25, 2009

Nickel-O-Matic Robot

at 1:22 pm. Filed under Complex Hacks, Cool Gadgets, Crazy Hacks, Electronic Hacks, Funny Hacks, What Were They Thinking

 

I love complex machines that take lots of complex technology to perform a simple task. This Nickel-O-Matic Robot waits for a coin and then uses tons of servos and stepper motors to print a cool message on a wooden token.

"The system was built as a number of modules to make design and trouble shooting simpler. The most complex of the modules is the inkjet system. At the center of the inkjet module is a spindle that rotates the wooden nickel under the inkjet head. This spindle is turned with a stepper motor and allows for repeatable placement of the nickel under the inkjet head. The spindle is also moved horizontally under the inkjet head by a second stepper motor coupled to a lead screw and slide mechanism. A Propeller Chip controls all the elements of the inkjet module. The Propeller Chip was chosen for the inkjet system for two reasons. The first is that the inkjet required fast and accurate timing. The Propeller Chip has direct control over the inkjet head through a simple Darlington transistor array. Each of the inkjet’s 12 nozzles needs pulsed on for no more than 6 microseconds. The second reason the Propeller Chip was chosen is that the module needed at least 24 IO pins to control the inkjet module. The inkjet head needs 12 pins, the two steppers need 4 pins each, there are three IR sensors, and I needed at least one pin to communicate with the BASIC Stamp 2."

Via: HackaDay and Make


Analog Data Logger Project

at 5:28 am. Filed under Complex Hacks, DIY Hacks, Electronic Hacks

 

Having the capability of data logging is a great trouble shooting resource. Often a meter with min/max capability is connected to circuits that are suspected to act up from time to time to prove that something strange is happening. However even when you know there is an intermittent issue wouldn’t it be nice to know what exactly happened and when. With this Analog Data Logger Project you would not have to guess what happened, all you would have to do is look at the log file.

"This project is an analog to digital converter for use with programs running on a pc, mainly a data logger but I’m working on another program that will use this circuit and two variable resistors so you can play pong on your pc."

Via: Hacked Gadgets Forum


March 23, 2009

Waterjet Cuts an iPod in Half

at 10:47 pm. Filed under Crazy Hacks, What Were They Thinking

 

We all remember the Will it Blend videos, now we can say Can Water Cut It. These guys use a Flow Waterjet to have all sorts of fun. If you ever wanted to see a laptop cut in half, a golf club in half or a blender cut in half Can Water Cut It is the right site for you. 🙂

"What makes waterjets so popular? Waterjets require few secondary operations, produce net-shaped parts with no heat-affected zone, heat distortion, or mechanical stresses caused by other cutting methods, can cut with a narrow kerf, and can provide better usage of raw material since parts can be tightly nested."

 

 

 

 

LEGO Rock Crawling Truck

at 2:39 pm. Filed under Toy Hacks

 

This LEGO Rock Crawling Truck looks impressive since it is built with the delicate LEGO blocks and pieces that we all played with when we were young. This truck not only looks good but is shown in some interesting positions that prove that it articulates very well on rough uneven terrain.

Via: dansdata.blogsome.com


March 22, 2009

Spiral Stair Wine Cellar

at 5:09 am. Filed under Complex Hacks, Cool Gadgets, What Were They Thinking

 

I would love to have a secret trap door somewhere in the house, not sure it would be filled with wine since I probably don’t even have a bottle in the house right now. I think my secret cellar would be filled with servers and other technology. Only problem with that would be if the authorities ever found it, they would never think that it was installed just for fun. The Spiral Cellar company offers lots of options, they can make a hidden version or a model that has a glass top to show off your collection. What would you put into your spiral cellar?

"The Spiral Cellar system was first developed by a Frenchman, Georges Harnois, in 1978, who recognized that few modern houses had cellars, but people still wanted somewhere to store their wine. It can keep up to 1,600 bottles in ideal storage conditions and since, like a traditional cellar, it relies on the surrounding earth for its insulation, plus an ingenious air-flow system, it requires no power to maintain its constant temperature. Once it’s paid for, that’s it – no more expenses except for the wine itself, of course! "

Via: Dornop

March 21, 2009

Desktop Energy Seed Lamp

at 9:26 am. Filed under DIY Hacks, Electronic Hacks

 

This Desktop Energy Seed Lamp is interesting. It uses old batteries as a power source. All of the batteries are put in parallel using two large metal plates and a jewel thief circuit (I prefer the rusty nail implementation though) is used to create the larger voltage needed to power the LED circuit. As long as the batteries all have about the same amount of charge left the circuit should efficiently drain the remaining energy out of the batteries. I am not a big fan of Parallel LED circuits, but they may last long enough not to make that a concern. Have a look at the full article, it documents the mechanical and electrical process of this design very well.

"Today I will show you something very interesting. It is not a killing robot or skynet (not yet). It is a desktop ambiant light that use dead alkaline battery to power itself. This design can hold up to 15 batteries. It use a single joules thief circuit to power 50 LED!"

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