Circuit Lake

This project is a first step in trying to alleviate swimming pool or tub accidents (i.e. children drowning) by warning the occupant(s) of the house that something or someone is in the water. It foregoes old-fashioned buzzers, bells or sirens and instead uses high-quality digital audio and speech ISD2560. It is designed to be very [...]

The project shows you how to build an automatic volume control system for TV-sets, home audio systems, etc. The system measures current volume level from Audio AUX output and controls audio volume by Infrared commands. The idea is simple – in many situations TV-set user has to adjust the volume: when he or she watch [...]

This automotive scan tool uses the Renesas M16C/62P development board to create an interface to the onboard diagnostic (OBD) port in cars. The OBD-II communications standard, defines three standard interfaces J1850 VPW, J1850 PWM and ISO 9141-2. This device was designed ONLY for ISO 9141-2 interface and it has been tested on Subaru & Honda [...]

This project is a simple Renesas M32C/84 microcontroller-based Optical PhotoElectric Beam sensor. It could be used for various applications such as security sensor, optical switch counter, electronic lever trip alarm, etc.

This project tends to do something different from the usual use of optical navigation sensor for movement detection. It will use the image capturing function [...]