Friday, August 08, 2008
Home Automation by Edward Cheung
"This centralized system can control almost all of the lights in my home, a few appliances, the garden irrigation, some window treatments, the Audio/Video system, the security system, and the HVAC (Heating Ventilation and Air Conditioning)."
"I can communicate with the central computer by using keypads throughout the house, any phone in the world (including those inside the home), any browser over the internet, and from my wrist watch. A webcam (with integral pan/tilt) allows me to see what is happening with nothing but a web browser."
Thursday, August 07, 2008
"This site reflects my experience and my opinions on FPGA technology. It is meant to be informative and useful to anybody interested in learning FPGA technology."
- Jean P. Nicolle
- HDL tutorials
- SMD technology
- Crystals and oscillators
- How FPGAs work
- Digital oscilloscope
Electronic Projects of Ronald
I Colored The Sketch at Ronald's site and mailed it to him. Ronald used it in his website!!
NIXIE II A Talking NIXIE Alarm Clock! This Nixie Alarm clock will wake you up with a personal wake-up message or sound. A "wav" file stored in EPROM is played using only a few counters and a DA converter.
The µSCOPE - A poormans OscilloScope
"These days this obviously can be done much simpler. The present generation of micro controllers is so powerful that such a videoscope concept can be realized almost completely in software. Recently I obtained a sample of the 12f675. On examination of the datasheet of this small 8 pins micro controller from Microchip, it appeared that the small package contained all the components of a miniature videoscope. In short the µSCOPE project was born, with as main objective the challenge of implementing such a relatively complex task in this small micro controller. The result summarized on this web page is a fully functional (memory)scope that samples the analogue input signal and subsequently displays it on a normal TV"
Wednesday, August 06, 2008
PCB Design Tutorial - As published in Silicon Chip magazine Oct-Dec 2003. A very comprehensive three part tutorial on how to professionally design and lay out PCBs. Learn all the tricks of the trade! A ground breaking article.
10MHz DDS Function Generator - A very low cost 1Hz to 10MHz sine/square function generator using a novel "sliding window" display. Based on the Analog Devices AD9835 DDS chip.
Low Cost 20MHz Function Generator - A 20MHz+ Sine/Square/Triangle function generator based on the Maxim MAX038 chip.
PC Based Digital Storage Oscilloscope Adaptor- A simple and low cost PC Based digital storage scope using a novel architecture.
FSM Compiler Based PLC- A simple and low cost Programmable logic controller based on the Finite State Machine concept. Complete with custom compiler software and source code.