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This AVR-based embedded system of high-resolution ultrasonic radar will help the driver to avoid potential accidents by telling the driver the minimal distance of obstacles behind the car which may be neglected by drivers. The system uses TV On-screen character display (OSD) technology as main display and LED as secondary display. In the light-emitting [...]
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The AVR Ethernet I/O board with accompanying PC control software offers remote control of 4 relay activated devices and status monitoring of 4 opto-coupled inputs over the Internet. Remote control is accomplished using any web browser-abled computer, or by running the custom “Ethernet I/O Control Panel” Windows software on an Internet ready PC. Browser [...]
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The Battery sAVR is an intelligent battery capacity meter that will log the discharge of a single primary or secondary cell over a period of time. But it’s more than a dummy load and data logger, with Atmel ATtiny26 AVR microcontroller, the Battery sAVR can emulate 3 different types of loads in real-time – [...]
The project convert a standard residential water meter as an inexpensive industrial flow meter. To accomplish it, you need to remove the register of standard meter and adding a PCB to the top with a hall effect sensor to pick up the rotation of the internal impeller which has an embedded magnet that normally drives [...]
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 weather [...]
Sing-along is a musical tone memory game for 1 to 3 players. The game plays a random sequence of notes, then it listens for the player(s) to sing or hum the notes back to it. The sequence keeps getting longer each time the player sings it correctly. If a player does not sing a note [...]
This project shows you how to build thermometer with multiple sensor. The project use AVR ATMega168 as main processor and DS18×20 1-Wire® Thermometers as temperature sensor. It can monitor up to 16 DS18×20 thermometers, with a variable logging rate of 5 to 9999 seconds. The data is displayed on a multi-page LCD display and send [...]
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