Circuit Lake

Electronic Project and Circuit Collection

Atmega644 Related Resources


AVR Digital Stethoscope

February 11, 2013 By: admin Category: AVR, Data Acquisition, Detector, Measurement, Microcontroller No Comments →

Digital Stethoscope Project

This digital stethoscope can be used as computer aided diagnosis (CAD) applications for the detection of cardiac murmurs. It can assist physicians in analyzing cardiac signals in real time during auscultation to reduce the risks of not detecting heart murmurs conditions. The Stethoscope system is built based on ATmega644 AVR microcontroller and custom-built sensor to […]

AVR Remote Power Control

January 29, 2013 By: admin Category: AVR, Control, Monitoring, Remote No Comments →

remote home power via LAN

PowerManager allows you to monitor and control your home power through a web browser on a local area network (LAN). You can turn on or off any devices that plugged to PowerManager’s outlets with the click of a button on a webpage. The system based on AVR ATMEGA644 microcontroller and ENC28J60 Ethernet controller. This embedded […]


AVR Auto Composing Piano

January 27, 2013 By: admin Category: Audio, AVR, Miscellaneous No Comments →

Smart Piano with music composer feature

This ATmega644-based smart piano can composes music of your own taste automatically. What you have to do is select a mood of the music and play two notes upon which the music is based, and then let the piano create the music for you. You can also train the piano by first playing several pieces […]

Pulse Oximeter and Heart Rate Meter

January 15, 2013 By: admin Category: AVR, Measurement, Monitoring, Project No Comments →

Solar Powered Pulse Oxymeter

The purpose of the project is to build a low cost pulse oximeter and heart rate meter powered by solar energy. The idea based on the fact that the oxygen saturation of blood is one of the most important parameter to be monitored. By make it low cost and solar powered, the device is ideal […]