Circuit Lake

This Oscilloscope was built based on AVR AT90S8535. It samples signals on a range of 0-4 V and displays them through HyperTerminal using VT 100 codes. The user, through the keypad, can select time per division calibrations ranging from .1sec to 2ms. The waveform is displayed along the user defined grid and peak-to-peak [...]

This AT90S8535-based alarm clock features a large, bright time display, easily visible in the bedroom. It also features a loud, irritating alarm, sure to wake even the soundest of sleepers. By far the most innovative part of the alarm is the LCD display, which gives the date, alarm status, and status for setting the [...]

This final project involved the design of a fully functional, multi-purpose digital thermometer. This was designer attempt at producing a portable device that could be widely used for a variety of different purposes. For example, think of the many situations where the precise measurement of temperature is of high importance.

Temperature control and monitoring is important [...]

This AT90S8535-based project is built to enhance the controls of a Hummer RC truck. The main objective was to demonstrate that an Atmel microcontroller together with basic hardware building blocks can replace all of the car’s original circuitry. Improving the RC truck’s handling involved adding analog control over steering and speed.

“The original construction of [...]