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 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 [...]

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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 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. [...]

This AVR ATmega8 based radar range finder project uses infrared light instead of ultrasonic. The project is built to detect sound absorbing materials like padded furniture which can not be detected by ultrasonic radar. Ultrasonic ranging systems require many milliseconds of acquisition time rendering them unusable for fast moving systems.

If you want to build Light dimmer that can be controlled from many ways then check out this Network Light Dimmer. This AVR AtMega8-based light dimmer project has multiple control interfaces such an RS485 network, an infrared remote control, a proximity touch slider or touch sensor (Qprox QT401/QT110). Other features including Opto isolated and handle [...]