Circuit Lake

This vineyard monitor project is built based on Parallax propeller chip. It consists of a weatherproof box that houses the electronics mounted on a PVC support pipe. The pipe is intended to be driven into the ground. The project will collect data like soil temperature and moisture, air temperature and humidity and solar radiation and sent them to a host PC located up to 100 feet away wirelessly.The soil temperature sensor is placed at the bottom of the pipe while the soil moisture sensor is located on an extension cable ...

This simple AVR ATtiny2313-based LAN tester allows you to check the type of LAN cables (straight or cross) and to test whether LAN cable is broken or not. The project has 8 outputs. Each one of them produces a pulse successively and only one output can be high at any time.To check the LAN Cable, you need to plug the end cable to rj45 connector A and the other cable end to RJ45 connector B. And then the MCU will send pulse to connector A and the LEDS will glow ...

Remote accelerometer is small device that has a three axis accelerometer and transmit the acceleration values to a remote host. One example of its use is to gather a data from moving object. You can attach the sensor to someone and when he move like jump around, you can use the data to produce sound or modify music on your remote machine. "It's like a simple version of Wiimote" said Alex, the project designer.Main part of the project are ATmega328P, Arduino compatible microcontroller, running at 8 MHz; ADXL335 (3 axis ...

The project allows you to determine whether or not the caller is an actual person. If not, it hangs up without ever disturbing the user. But, when the caller is real human then its built-in ringer will give alert to user. Telephone screener is very useful to avoid automated telemarketing call in the middle of dinner, just to find only silence at the other end of the line. The hardware is based on microcontroller PIC16F872 and plugs into an ordinary phone line. While, its firmware is written in assembler and ...