If you are into Radio Control Models or robotics chances are that you have an old RC transmitter laying around. This article describes how to create a motion control module for your RC transmitter, that will allow you to control your model or robot by simply tilting the transmitter case. That's right no more wiggling the  sticks!

This article introduces a new project I am working on - a  Quadcopter using Acc_Gyro and a PIC. I share some things I learned along the way so far.

The iPad is finally out - one feature that might caught your attention is the built-in accelerometer and the ability to control a game by tilting the device. But it turns out you can do same thing on your laptop. Read on to find out how.

Trickster is a simple application built on UsbThumb platform. It tricks your victim into thinking they have a virus on their computer, by hardware emulating and moving their mouse in circles on intermittent intervals.

This article describes how to update firmware on USBThumb.

This article describes how you can use USBThumb as a Propeller Programmer or USB to Serial converter.

Bus Pirate is a great tool for exploring new chips using your PC , without the need to integrate the chip into a MCU project. Once I received my unit, i decided to put it to the test by exploring an accelerometer with I2C/SPI interface - the MMA7456L from Freescale. I am writing this in hope that it will help other people get started with BusPirate and I2C protocol in particular. I will only describe the I2C interface in this article but BusPirate is capable of so much more !

This article introduces an  implementation of a simplified filtering algorithm that was inspired by Kalman filter. The Arduino code is tested using a 5DOF IMU unit from GadgetGangster - Acc_Gyro . The theory behind this algorithm was first introduced in my Imu Guide article.

This article discussed the theory behind accelerometer and gyroscope devices. It shows a simple  Kalman filter alternative, that allows you to combine accelerometer and gyroscope data in order to obtain more accurate estimates about the inclination of the device relative to the ground plane.

In this article I am testing another accelerometer from ST - LIS331AL. I am also touching the topic of filters and vibration response.

This article is the first in a series of reviews of MEMS devices (gyroscopes, accelerometers). I start by testing 3 accelerometers side by side and testing their performance: Dimension Engineering DE-ACCM2G (ADXL322), LIS244AL, Pololu MMA7260QT.

I have received some feedback from my readers regarding my first usb gamepad project , so for the past few weeks I was working on a new imrpoved design.    There are plenty of new improvements that I hope will address many of your requests. The new device supports a wide range of gyroscopes and accelerometers that can be configured using  Configuration Utility for Windows. Have a look at this article as it features new suggested schematics as well as a full feature log. Firmware and configuration utility are free to download for private use.

This article is a continuation of my series of SMT experiments. It describes the process of creating a custom PCB and reflowing a SMT device in home conditions.

This article describes how to create an inexpensive and easy to build motor driver that can drive two DC brushed motors. The driver holds  4A per motor  with  8A peak per motor. I'm including the circuit schematic and photos of a sample build on a perforated proto-board. Watch videos of motor controller in action mounted in my new wireless robot.

This article describes a series of techniques that facilitates defining and programming I/O ports in embeded C with the same ease you do these task in PBASIC/PicBasic. Macro definitions and sample code is given for PIC C18/C30  and  gcc-avr (ATMEL MCUs).

This projects is intended for those who would like to get started with OpenCV and  stereo vision. I created a simple StereoVision C++ class that simplifies the development of a 3D calibration and vision system.

Learn how to connect a Nokia LCD to your breadboard project without soldering.

Learn the technique of  soldering a wire to small pads without creating bridges.

A method of mounting leadless surface mount devices withoug having to create a custom PCB.

Schematics and code for construction of an accelerometer controlled USB gamepad based on a Microchip PIC microcontroller. 

Create a device that allows you to turn on and off your computer using your regular TV remote.