The presented project is a tiny controller for lighthouse based on R8C/13 microcontroller. The hardware design is very simple. The only external components other than resistors and capacitors are: LED used as a light source, CdS photoresistor used as ambient light level sensor, 74AC14 used as very low cost (false) RS232C driver and quartz oscillator [...]
This face detection and tracking system is built based on Arduino and OpenCV. The webcam sends video frames to OpenCV running on a Windows PC. If OpenCV detects a face it will track it and calculate its center’s X,Y coordinates. The coordinates are then passed on to the Arduino via a serial USB connection. The [...]
A “Clapper” is a device that will turn on or off an AC appliance that is plugged into it, such as a lamp or fan when it “hears” you clap twice in approximate succession.
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 [...]
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