his electronic cricket is a fun project. A real crickets chirp at night and faster in warmer temperatures. A cricket chirp is composed of a group of three sinus waves of a single frequence of about 5kHz. occurring in rapid succession.
Introduction
This electronic cricket is a fun project. A real crickets chirp at night and faster in warmer temperatures. A cricket chirp is composed of a group of three sinus waves of a single frequence of about 5kHz. occurring in rapid succession. Each group of three is one chirp. The rate of the chirp depends on the temperature. For this project the attiny2313 is used. It can produce square waves that almost sound as the sinus waves a real cricket make.
Circuit
The circuit itself is very simple, a small loudspeaker of 8ohm/0,5W is connected to portb.1 and ground of the Attiny2313 microcontroller.You can build the circuit on a breadboard or use the ATTiny2313 board. You can buy the ATTiny2313 board at www.bizztronix.eu.
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