Cricket Call Generator


The goal of this project was to build a field-portable cricket-call generator. The cricket-call generator will be used to attract crickets and for song discrimination tests.


We used an Atmel STK-200 development board with an AT90s8515 flash-programmable microcontroller (mcu) on-board. A port of the mcu was used to drive an 8-bit digital-to-analog converter (Analog Devices AD557). Another port was used to detect a button push. The button starts playback of the selected song. A third port was used to run LEDs indicating which song is being played.


There are four processes which run on the microcontroller:


The DAC schematic shown in the EOD project was used again here.