Zeile 1: |
Zeile 1: |
| [[Category:Projekte]] | | [[Category:Projekte]] |
| [[Image:urban_cricket_without_pcb.jpg|thumb|altered assembly without pcb]] | | [[Image:urban_cricket_without_pcb.jpg|thumb|altered assembly without pcb]] |
| + | = Project description = |
| Urban Cricket is a small circuit that imitates the call of a cricket, only being powered by a small solar cell. | | Urban Cricket is a small circuit that imitates the call of a cricket, only being powered by a small solar cell. |
| The idea comes from Reinhard Gupfinger a Linz based artist I met during the Ars Electronica Festival 2011 in Linz. | | The idea comes from Reinhard Gupfinger a Linz based artist I met during the Ars Electronica Festival 2011 in Linz. |
Zeile 8: |
Zeile 9: |
| | | |
| [[Image:Urban-cricket-schematic-simply.gif|thumb|Sechematic]]<br> | | [[Image:Urban-cricket-schematic-simply.gif|thumb|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 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 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> |
Zeile 14: |
Zeile 15: |
| 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> | + | = Values = |
| yet to come! | | yet to come! |
| [[Image:Urban-cricket-layout-placement-top.gif|thumb|Component placement top view]] | | [[Image:Urban-cricket-layout-placement-top.gif|thumb|Component placement top view]] |
| + | = Making a PCB = |
| + | yet to come! |
| [[Image:Urban-cricket-laout-copper-bottom.gif|thumb|Bottom view PCB layout for 18pcs. (600dpi) on a 100x160mm one-sided PCB]] | | [[Image:Urban-cricket-laout-copper-bottom.gif|thumb|Bottom view PCB layout for 18pcs. (600dpi) on a 100x160mm one-sided PCB]] |
| | | |
| + | = Hyperlinks = |
| * [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] |