Änderungen

Schematic:

Schematic:

 

Schematic description:

Schematic description:

The Urban Cricket consists of three simple oscillators, a piezo beeper with built in driver and a solar cell for powering the circuit. The piezo beeper has a built in driver which means that a voltage applied will cause the beeper to generate noise not only a short click. It generates a tone at about 2,000 to 3,000 Hertz witch sounds pretty annoying ("piiiiiiiiiiiii").<br>

The Urban Cricket consists of three simple oscillators, a piezo beeper with built in driver and a solar cell for powering the circuit. The piezo beeper has a built in driver which means that a voltage applied will cause the beeper to generate noise not only a short click. It generates a tone at about 2,000 to 3,000 Hertz witch sounds pretty annoying ("piiiiiiiiiiiii").<br>

The first oscillator makes the beeper beep at a variable frequency of about 20-100 Hertz. The beeper controlled by the first oscillator sounds short 2-3khz bursts.

The first oscillator makes the beeper beep at a variable frequency of about 20-100 Hertz. The beeper controlled by the first oscillator sounds short 2-3khz bursts.<br>

The second oscillator works much slower at about 1 to 3 Hertz. The functionality of the second oscillator is to stop the first one at some times. Now the cricket sounds "brrr brrr brrr brrr brrr brrr".

The second oscillator works much slower at about 1 to 3 Hertz. The functionality of the second oscillator is to stop the first one at some times. Now the cricket sounds "brrr brrr brrr brrr brrr brrr".<br>

The third oscillator runs even slower than the second one causing the second one to stop at some times. Now the cricket sounds "brrr brrr brrr <pause> brrr brrr brrr <pause>" and so on.

The third oscillator runs even slower than the second one causing the second one to stop at some times. Now the cricket sounds "brrr brrr brrr <pause> brrr brrr brrr <pause>" and so on.<br>