Robust Big Piezo Button
by AlainsProjects in Circuits > Electronics
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Robust Big Piezo Button
![Piezo Button Test](/proxy/?url=https://content.instructables.com/FD4/878I/ILO2TBT0/FD4878IILO2TBT0.jpg&filename=Piezo Button Test)
![Piezo Sensor Button Test](/proxy/?url=https://content.instructables.com/FDT/HYRO/ILO2TBW9/FDTHYROILO2TBW9.jpg&filename=Piezo Sensor Button Test)
![schematast2.PNG](/proxy/?url=https://content.instructables.com/F56/VIXI/ILO2T9CG/F56VIXIILO2T9CG.png&filename=schematast2.PNG)
![IMG_7000.JPG](/proxy/?url=https://content.instructables.com/FVN/1NH0/ILO2T8SS/FVN1NH0ILO2T8SS.jpg&filename=IMG_7000.JPG)
For a project I need a few robust buttons. I could not find buttons in a certain size, so I decided to create my own.When you push or tap the front side of the button, you will get an impulse of +-1sec.The piezo will generated a small impulse, which is amplified by a transistor. A Ne555 in monostable mode gives me a 1sec impulse.
The Housing for the Button
![IMG_6932.JPG](/proxy/?url=https://content.instructables.com/FSG/ZBL5/ILO2T8W0/FSGZBL5ILO2T8W0.jpg&filename=IMG_6932.JPG)
![IMG_6933.JPG](/proxy/?url=https://content.instructables.com/FJQ/H1XS/ILO2T93C/FJQH1XSILO2T93C.jpg&filename=IMG_6933.JPG)
![IMG_6934.JPG](/proxy/?url=https://content.instructables.com/FN3/ZQAR/ILO2T8X9/FN3ZQARILO2T8X9.jpg&filename=IMG_6934.JPG)
![IMG_6935.JPG](/proxy/?url=https://content.instructables.com/F35/32NV/ILO2T8YB/F3532NVILO2T8YB.jpg&filename=IMG_6935.JPG)
I used a 55mm Pipe Stop End. I sand the piece to remove the irregularities.In the pipe stop end, I glued a 35mm Piezo element inside it with super glue.
The PCB
![piezo01.PNG](/proxy/?url=https://content.instructables.com/FOA/MUXL/ILO2T9CF/FOAMUXLILO2T9CF.png&filename=piezo01.PNG)
![IMG_6965.JPG](/proxy/?url=https://content.instructables.com/FOV/JRTW/ILO2T95W/FOVJRTWILO2T95W.jpg&filename=IMG_6965.JPG)
![IMG_7005.JPG](/proxy/?url=https://content.instructables.com/FEI/FNXB/ILO2TDQG/FEIFNXBILO2TDQG.jpg&filename=IMG_7005.JPG)
Because I need about 8 buttons, I decided to create a PCB.I used DipTrace for the layout, and I ordered them at http://www.pcbway.com/
How to Fix the PCB
![IMG_6988.JPG](/proxy/?url=https://content.instructables.com/F6F/FA20/ILO2TCEP/F6FFA20ILO2TCEP.jpg&filename=IMG_6988.JPG)
![IMG_6995.JPG](/proxy/?url=https://content.instructables.com/FCL/GIGP/ILO2T997/FCLGIGPILO2T997.jpg&filename=IMG_6995.JPG)
![IMG_6989 - Copy.JPG](/proxy/?url=https://content.instructables.com/FXC/QCW8/ILO2T9CA/FXCQCW8ILO2T9CA.jpg&filename=IMG_6989 - Copy.JPG)
![IMG_6993.JPG](/proxy/?url=https://content.instructables.com/FHD/Q9ZS/ILO2T98K/FHDQ9ZSILO2T98K.jpg&filename=IMG_6993.JPG)
![IMG_6994.JPG](/proxy/?url=https://content.instructables.com/FVJ/S2S8/ILO2T991/FVJS2S8ILO2T991.jpg&filename=IMG_6994.JPG)
![IMG_7000.JPG](/proxy/?url=https://content.instructables.com/FXT/NCMU/ILO2T967/FXTNCMUILO2T967.jpg&filename=IMG_7000.JPG)
I painted the Button yellow.
I used a piece of plastic angle and cut 2 small pieces of it. With Hot glue they are kept in place and with epoxy glue they will stay there forever.I drilled 2 small holes in the angels to fix the PCB.
Why I Needed Them (update)
![IMG_7137.JPG](/proxy/?url=https://content.instructables.com/FIY/9SZQ/IN0TJUTS/FIY9SZQIN0TJUTS.jpg&filename=IMG_7137.JPG)
For this Media Player.
https://www.instructables.com/id/ScottTV-a-Simple-Media-Player-for-My-Austic-Son/