June 2013 archive

XBee Series 1 Basic Tests

XBees are regular RF modules with capabilities of Mesh networks.  It are based on 802.15.4 wireless standard named Zigbee.  Although they are not full zigbee compliant modules, the company has a variety of fancy modules and there are ones that are full zigbee compliant. Zigbee is regularly used to make control applications where battery life …

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Computer Vision

Computer Vision is an art.  For those people that made the libraries, my total admiration.  I will show you here the basic of displaying an image using your computer with a package named OpenCV or Open Computer Vision.  This stack of functions will help you to develop complex applications using your device input, generally a …

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CPLDs – Complexity Reduced to One Single Chip

CPLDs are the most basic chips (right now) in programmable logic.  You can make an AND, OR; make combinational gates, state machines and any combination of circuitry hardware that you want. Its well suited to glue logic to get the cost of hardware production lower.  I will explain a very basic introduction of CPLD and …

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Resistive Load Control

Microcontrollers are good for control.  8-bit market stills rules.  In this project i was able to implement a simple way to dim the incandescent light bulb.  This project was submitted on the IEEE design contest locally, but unfortunatelly i was only able to be on the second place. In the link you will find how …

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Welding Machine Controller

This post i will show you a past work about make a Welding Machine controller for tanks that holds fluids like water, air or other newtonian fluid.

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