Circuit Lake » AT90S2313

Meeting Minder

admin — Tue, 23 Mar 2010 03:14:40 +0000

The MeetingMinder is time reminder for public speaker that give a warning when their speaking time will end. The project is built as indication light tower that has red, green and yellow 360-degree wraparound lights, mounted to a base which houses a large two-digit seven-segment display and the control circuitry. The tower colors indicate [...]

RS232 Frequency Meter and Pulse Generator

admin — Mon, 15 Mar 2010 05:03:07 +0000

This multi purpose project is built around MCU AVR AT90S2313. Besides as Frequency meter, the project can be used as Pulse Generator too (combined counter and frequency meter). It doesn’t have any front panel controls because the user interacts via an RS-232 terminal program at 9600 baud. The user controls reads data via an [...]

Magnetic Stripe Card Reader

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

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 [...]

Ultrasonic Radar For Driver

admin — Mon, 08 Feb 2010 00:40:38 +0000

This AVR-based embedded system of high-resolution ultrasonic radar will help the driver to avoid potential accidents by telling the driver the minimal distance of obstacles behind the car which may be neglected by drivers. The system uses TV On-screen character display (OSD) technology as main display and LED as secondary display. In the light-emitting bars [...]

Secret Keyless Entry System

admin — Thu, 07 Jan 2010 22:31:15 +0000

This AVR AT90S2313 based project modifies a home’s existing doorbell to become a hidden keyless entry system. The doorbell will operate normally unless a secret code is entered via the doorbell button. When the secret code is entered, the doorbell does not ring and the garage door is opened. An Atmel Microcontroller AVR AT90S2313 [...]

3D Ball LED Matrix

admin — Sat, 14 Nov 2009 03:37:39 +0000

Led 3D-ball is 3D lights effects project based on microcontroller AVR AT90S2313 and 2 decoder 74145. The project could be use as decoration balls for Xmas and New Year trees, bars, cafes, disco and more. The matrix measuring twenty rays all over seven led. The microcontroller firmware written in basic and compiled with bascom AVR. © [...]