Circuit Lake

Model Aircraft Electrical System Tester

admin — Thu, 11 Mar 2010 22:56:11 +0000

Advertisement In many applications loss of battery power is a problem causing no real harm. But, this is not the case in radio control (R/C) model aircraft. If the aircraft batteries “go dead” in flight it generally results in total destruction of the model and can represent a safety hazard. This ATmega8-based project goal, named MAESTRO, [...]

Source : Model Aircraft Electrical System Tester

Handheld 2.4 GHz Spectrum Analyzer

admin — Wed, 10 Mar 2010 22:37:55 +0000

This portable 2.4 GHz Spectrum Analyzer is built inside a cell phone case, Nokia 3410, and used the phone’s graphical LCD to display measuring results. It uses AVR ATMega8 as main controller and CYWM6935 module. The software is written in C using arv-gcc under Windows (WinAVR). The program runs continuously and make around six or [...]

Source : Handheld 2.4 GHz Spectrum Analyzer

Mains Voltage Monitor

admin — Tue, 09 Mar 2010 22:48:19 +0000

Advertisement The purpose of mains monitor project is to record mains fluctuations with an autonomous device and upload measurement to a PC for analysis. The monitor plugs into an ordinary mains outlet and records (time stamps) the voltage amplitude and the frequency at defined time interval. It transmits data through an USB interface. It can [...]

Source : Mains Voltage Monitor

Home Automation Using Mobile Phone

admin — Tue, 09 Mar 2010 01:32:20 +0000

This project shows you how to implementing your own Web/WAP enabled home automation system. It will allows you to control the on/off state of up to eight 3A appliances via either a web browser or a mobile phone. The system is split into three functional sections. These are 1. PHP files on the internet server – These [...]

Source : Home Automation Using Mobile Phone

Magnetic Stripe Card Reader

admin — Sun, 07 Mar 2010 23:46:55 +0000

Advertisement This AVR-based magnetic stripe card reader will read the data from track 1 of a credit card, or any other card that uses a similar format, and will send it out an RS232 port where it can be displayed on a PC using any communications program. There can be up to three tracks used on [...]

Source : Magnetic Stripe Card Reader

Low-Cost Vehicle Security System

admin — Fri, 05 Mar 2010 00:27:20 +0000

This vehicle security system built using Atmel’s Atmega8 AVR microcontroller, Analog Device’s low cost acceleration sensor ADXL311JE and Dallas semiconductor’s DS1973 iButton. The circuit powered by small battery power supply which is integrated with the unit. The system works as follows, whenever Atmega8 detects the change in acceleration by continuously comparing the ADC count, it looks [...]

Source : Low-Cost Vehicle Security System

Wireless RF Temperature Transmitter

admin — Wed, 03 Mar 2010 15:40:53 +0000

The purpose of the project is to monitor the temperature of three compost heaps. It will send the data wirelessly to the receiver and process or display the result to PC. In the transmitter board, the project uses the TXM-433 as RF transmitter and MCU AVR AT90S4433 (you can replace it with AVR ATMEGA8) as [...]

Source : Wireless RF Temperature Transmitter