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Since it is hard to recreate a circuit not having a pcb an a schematic, people who want to recreate the Urban cricket will find the schematics, a layout to create a pcb and a parts list here.
Since it is hard to recreate a circuit not having a pcb an a schematic, people who want to recreate the Urban cricket will find the schematics, a layout to create a pcb and a parts list here.
[[Image:Urban-cricket-schematic-simply.gif|thumb|Sechematic]]<br>
[[Image:Urban-cricket-schematic-simply.gif|500px|Sechematic]]<br>
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 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>
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>
The the oscillator stages a coupled via diodes to make them influence the other only one way. All six not-gates a located on one ic-chip (74HC04 or 74HC14).<br>
The the oscillator stages a coupled via diodes to make them influence the other only one way. All six not-gates a located on one ic-chip (74HC04 or 74HC14).<br>
Values:<br>
yet to come!
[[Image:Urban-cricket-layout-placement-top.gif|thumb|Component placement top view]]
[[Urban-cricket-laout-copper-bottom.gif|thumb|Bottom view PCB layout for 18pcs. (600dpi)]]
* [http://www.soundtossing.com/ Sound tossing website]
* [http://www.soundtossing.com/ Sound tossing website]
* [https://www.facebook.com/soundtossing Sound tossing Facebook page]
* [https://www.facebook.com/soundtossing Sound tossing Facebook page]