Stmicroelectronics offers a low-cost, complete evaluation and development package for tiny 8-pin versions of the st7lite micro-controller family. The st7uitralite primer is a compact usb-powered tool based on the st7fliteus mcu, preprogrammed with a real-world software application that is designed to demonstrate all of the mcu`s main features and peripherals. The primer plugs directly into the use port of a host pc, and includes st`s ultralitemusic application to highlight features such as the internal rc oscillator, 10-bit analogue-to-digital converter [adc], 12-bit auto-reload timer with pulse-width modulation, and low-voltage and auxiliary-voltage detectors. This light sensor and buzzer application plays five musical selections; changes in ambient light intensity cause it to step through the tunes. If the primer is unplugged from the usb port and then reconnected, the music continues from where it left off.
