Circuit Lake

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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.

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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.

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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.

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 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 [...]

The CarbCounter+ is PIC32MX460F512L based Food Scale combined with a PDA. The device built to help people with Diabetes manage, log and calculate their Carbohydrate information. This allows for more accurate insulin dosages and control, thus reducing the possibility of complications later in life. CarbCounter allows parents of toddlers, school kids, people on the go [...]

The Low Cost Telemetry Device (LTD) provides a low cost, minimal parts count Telemetry keyer using an Atmel’s ATMega8 Microcontroller. The LTD sends data by measuring voltage levels of up to four analog channels via its on-chip 10-bit Analog to Digital Converter (ADC) and converting them to numbers and sending the measurements via Morse Code. [...]