http://dani.foroselectronica.es Robotics and Electronics Weblog Wed, 03 Feb 2010 16:28:46 +0000 http://backend.userland.com/rss092 en I've been playing around with SMS PDUs encodings and recently observed some curious things regarding the way that cellphones treat the text messages when they include special characters.First look at these two tables of the GSM alphabet: The tables above show the GSM Alphabet using a 7-bit encoding which implies ... http://dani.foroselectronica.es/sms-text-messages-character-count-and-cellphones-103/ Since the very first moment I saw a 2-wheel self-balancing robot I got amazed about all the engineering behind it and I was so excited to build one myself. So now that it's become a reality let me introduce you to TOBIAS Mechanical Description: 4mm thick PVC sheets High torque motors (0.69 Nm) High ... http://dani.foroselectronica.es/tobias-self-balancing-robot-95/ Disclaimer: All the information posted is intended for illustrative and educational purposes only. I just want to show you that it's possible to set up the iPhone SDK on a Virtual Machine. Please, BUY an Apple Mac OS X License if you are going to use this and BUY a ... http://dani.foroselectronica.es/setting-up-iphone-sdk-on-a-virtual-machine-89/ I've started to build some sort of two-wheel Balancing Robot and before getting the party started I'm having to deal with mixing up the data gathered from my inertal sensors. My homebrew IMU (Inertial Measurement Unit) is composed by one 3-axis accelerometer and 1-axis gyroscope. The gyro sensor's got an analog ... http://dani.foroselectronica.es/playing-with-inertial-sensors-and-kalman-filter-85/ I'll briefly explain how to generate the signature file for a given library in order to import it from IDA Pro and get the library functions identified by the disassembler (which can save you hours from digging into 'well-known' functions). Requirements: FLAIR tools installed. Execute the COFF parser > pcf ms32.lib miracl ms32.lib: skipped ... http://dani.foroselectronica.es/creating-library-signatures-for-ida-84/ Hello, I've developed a little application that switches the audio output from the rear speaker to the front one and viceversa. This is useful for VoIP applications which are quite unusable without headphones since the audio comes from the back speaker. It just runs for 10 minutes and it's supposed to ... http://dani.foroselectronica.es/windows-mobile-route-audio-through-the-earpiece-ppc-81/ I'm working on a project which involves an i2c communication between a master and some slaves. The master device is using an LPC2148 microcontroller running at 60 MHz and the slave ones have a low-cost PIC microcontroller. Each slave device runs a different task and some of them are more ... http://dani.foroselectronica.es/i2c-protocol-clock-stretching-79/ Finally we wrote some tiny documentation about RL-AMC-50NP04 along with a reference C source code to interface it from the LPC2138-01 board. RL-AMC-50NP04 Quick Reference Guide RL-AMC-50NP04 Reference Source Code Enjoy it, Daniel http://dani.foroselectronica.es/rl-amc-50np04-documentation-76/ When I had to write some formulas in the blog I used to render them from LaTeX to images using some websites such as Online LaTeX Equation Editor. It has the disadvantage that you've got to write the equation, render it, save it to your harddisk and then upload to ... http://dani.foroselectronica.es/latex-in-wordpress-75/   Last week, we attended to Campus Party in Valencia. At CampusBot area, some robots competitions took place along the week and we had our line followers ready to fight. The results were pretty good: In the qualifying session on Tuesday we got the fastest two times with our two robots ... http://dani.foroselectronica.es/campus-party-2008-robots-competitions-74/