Accelerometer Controlled Usb Gamepad and Mouse using PIC18F2550 / PIC18F4550

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Secret Knock Detecting Door Lock

project using an arduino, a motor, and a piezo sensor which allows you to both record and detect knocking patterns to unlock a door.  The video below does a fantastic job of demonstrating how it works: It’s completely mobile and can be suction cupped to any dead bolt. Press a button to record a new sequence.  Upon detecting the correct sequence of knocks, the motor turns the lock open. Devamını gör…

PICkit 3 Programmer/Debugger Review

In this video, Dave compares the new PICkit 3 to the old PICkit 2.David L. Jones is an electronics designer engineer based in Sydney Australia.In his blog he shares some of his 20 years experience in the electronics design industry in his unique non-scripted overly enthusiastic style. I strongly recommend you to visit his blog.

Make your own X-men “Pyro” costume | Prometheus Device

The device was created by Everett Bradford. “Prometheus Device” is a hand-mounted appliance that shoots, like, real fire. Coolest part is that you can make your own. Devamını gör…

Make your own battery powered USB chargers.

You can charge your i-pod with this battery powered USB chargers. It is easy to make. From anythingbutipod.com Andreas Degard has explained step by step how we make this.

This article shows you how to make a USB charger that is confirmed working on a range of devices.

Or you can always just buy a Duracell Instant Charger for not much more Devamını gör…

How is a tiny braitenberg vehicle robot made? by Alexander Weber

It weighs 17 gramms, is driven by two pager motors, powered by a small lipo cell and controlled by an 8-pin ATtiny25V.  Pretty isn’t it? After reading this post you can build this amazing robot on your own. First, i want to explain what exactly braitenberg robot is?

Braitenberg vehicle : A Braitenberg vehicle is an agent that can autonomously move around. It has primitive sensors (measuring some stimulus at a point) and wheels (each driven by its own motor) that function as actuators or effectors. A sensor, on its simpler form, is directly connected to an effector, so that a sensed signal immediately produces a movement of the wheel. Depending on how sensors and wheels are connected, the vehicle exhibits different behaviors (which can be goal-oriented). This means that it appears to strive to achieve certain situations and to avoid others, changing course when the situation changes.^{[1] Devamını gör…}

Why we use resistor while we are driving leds.

I came across a very nice article at tinkerlog.com explaining why you need to use a current limiting resistor to power your leds. They say:
In this post I will try to show, why it’s a good idea to use a current limiting resistor for an LED. And when it’s safe to drive the LED without any resistor.

If you read about LEDs, you will notice that everyone tells you, that you need a current limiting resistor. But mostly they do not tell you why.

For more information visit here.

How a Drawdio is made?

Drawdio is a pencil that lets you draw music. Imagine you could draw musical instruments on normal paper with any pencil (cheap circuit thumb-tacked on) and then play them with your finger. The Drawdio circuit-craft lets you MacGuyver your everyday objects into musical instruments: paintbrushes, macaroni, trees, grandpa, even the kitchen sink… Devamını gör…

Microsoft Robotics Developer Studio 2008 R2 Express Edition

Microsoft Robotics Developer Studio 2008 R2 (Microsoft RDS) provides a wide range of support to make it easy to develop robot applications. Microsoft RDS includes a programming model that makes it easy to develop asynchronous, state-driven applications. Microsoft RDS provides a common programming framework that can be applied to support a wide variety of robots, enabling code and skill transfer.

Microsoft RDS includes a lightweight asynchronous services-oriented runtime, a set of visual authoring and simulation tools, as well as templates, tutorials, and sample code to help you get started. Devamını gör…

JALEdit + JAL Source Codes Download and step by step installation

  JAL is free high level pic programing language. It is so easy to understand. I will explain how you gonna install this compiler.

• First dowload JAL.rar which is below the page.
• Open JALEdit.exe in JALWin Folder ( JAL\JALWin\JALEdit.exe).
• Open compile options as in the picture 1
• Specify lib directory of JAL as in the picture 2 ( Remember you should specify lib folder which is in the SourceCodes folder.)
• Specify jal.exe location as in the picture3
• Now you can compile your codes perfectly, if you do what exactly i explained, your codes will be converted to HEX codes. Devamını gör…

What is JAL ( Jast Another Language ) ?

Jal is a high-level language for a number of Microchip (TM) PIC microcontrollers (16c84, 16f84, 12c508, 12c509, 16F877) and Ubicom SX (SX18 and SX28) microcontrollers. It was created by Wouter van Ooijen. He created Jal because he did not like any of the low-cost (or free) languages for these chips and implementing a high level language looked like a nice project. Implementing an existing HLL seemed more difficult and less fun than creating his own, so he just started writing the compiler and the language evolved on with it. Sorry for all C-lovers, but Jal is more like Pascal. For a quick impression of Jal you could read either the summary or the examples section of the on-line manual.

Basit hopörlör yapımı -TÜBİTAK Bilim ve Teknik Dergisi -Yavuz Erol

BASİT HOPARLÖR

Emaye kaplı bakır tel, mıknatıs ve plastik tabak kullanarak basit hoparlör yapımı.

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