Circuit Lake

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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) [...]

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The project built to track cats. It will log when they go in and out of the house. You can see what cats favorite time to go out is. The project can sent SMS messages if a cat goes missing for a certain amount of time.

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The purpose of ATMEGA8-16P1 based FM receiver project is to monitor polar orbiting weather satellites operated by the National Oceanographic and Atmospheric Administration (NOAA). The receiver will tune from 60 to 800 megahertz with an IF bandwidth of 50 kilohertz. While the IF bandwidth was chosen to be optimal for the NOAA polar orbiting [...]

This AVR-based wireless pedometer can provide useful statistics for walker/runner such as the number of steps a user has taken, the distance and the speed the person has walked/run, as well as the number of calories the person has burned. This information is wirelessly transmitted to the base-station, and it is displayed on the PC [...]

The goal of this project is to simulate the 26 Braille codes by vibrating a motor mounted on the glove’s finger tips. When the tips tapped out a Braille code, the information is stored in SRAM, or in EEPROM; or sent as ASCII data wirelessly to other compatible Braille gloves.
The system features two gloves that [...]

This project shows you how to build wireless temperature sensor with arduino and XBee. It uses LM 34 as temperature sensor. The project configured the radio at the sensor end to read the analog input of pin 19 every 4 seconds and to send a sensor reading packet. Both the sender and receiver radios should [...]

This 2.4GHz Spectrum Analyzer project build based on Cypress CYWUSB6935 module. The project allows you to monitor the 2.4GHZ ISM band in your immediate vicinity. You can monitor what’s going on and figure out what channel to change your Wi-Fi network to in order for it to keep working when your neighbor rudely sets up [...]