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[DESIGN] HiHat controller for Yamaha(tm) trigger modules (by vanHouten)
April 16, 2007
11:26 am CEST
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PFozz
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Forum Posts: 132
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February 5, 2004
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HiHat controller for Yamaha(tm) trigger modules
by vanHouten

A Yamaha(tm)-compatible hihat pedal is a little tricky to build but if you already have assembled a pedal on your own and just need the circuitry, it should be not much of a problem. the monetary efforts you have to face for this "project" are almost zero as long as you get your parts from defect electronic devices like hifi components etc...
(some experience with soldering and electronic components are necessary or at least useful!)

Here are the parts needed for the circuitry :

resistors :
2x: 150k 5%
1x: 50k
1x: 10k
1x: 1k
1x: 0.22k

capacitor :
1x: F 104Z (ceramic disc capacitor)

diode :
1x: BAT 48

other :
1x: old computer keyboard
1x: perfboard 3x7 cm (platine to set up own circuits)
1x: stereo jack (6,3mm)
1x: some wire for connections
1x: rubber cushion or foam-plate (e.g. thick mouse pad)
1x: double sided tape

(soldering iron, multimeter and evtl. hot glue)

Now the assembling :

1)
build a pedal... there are some models shown here.

2)
solder the circuit shown on the picture onto the perfboard, except for the 4 switches. now the sophisticated part begins... take apart the old keyboard and remove the contact-foil carefully. now cut out a piece that includes four contacts in a row. this will be the switch array from the schematic. i chose to take the upper four contacts from the num-pad because they were easily accessible.

http://edrum.for.free.fr/stati.....ematic.jpg
GET THIS PICTURE
(Right-click / Save target as...)
3)
the tricky thing is to connect the foil to the circuitry because one can't simply solder cables to the printed wiring due to it's melting point. i managed to connect the cables with hot glue (and it still lasts). use the multimeter to verify that all switching points close correctly.

4)
in the schematic the row-order of the successively closing switches is shown. consider this when you attach the foil under the pedal and fix it with the double sided tape.
then cut out four bars from the rubber foam and attach them over the four contact points of the foil (double sided tape again). another thing to think about is the position of the foil under the pedal, which means at which angle of the pedal all four switching points are closed.

http://edrum.for.free.fr/stati.....eHiHat.jpg
GET THIS PICTURE
(Right-click / Save target as...)
5)
solder the stereo jack to the circuitry according to the schematic and you are done.

6)
"share and enjoy!"


VHYHHChhclosed.jpgImage Enlarger
VHYHHChhopen.jpgImage Enlarger


Thanx again, vanHouten, for this other contribution!
Best.

March 21, 2010
12:46 am CEST
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ffrost3
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Forum Posts: 1
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February 9, 2010
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Ok So it seems to me that unless you are a fully qualified circuit guy then these directions are for a pretty experienced person. Now Im no dummy but Ive tried a couple versions of this and have not had any success. I really am struggling to figure out how to use the keyboard parts in particular. If someone can elaborate on these instructions I would be more than happy to post more detailed instructions for the less experienced. Can the community make a bit of an effort here?
Thanks

January 1, 2011
5:59 am CEST
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rachel12
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January 1, 2011
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Thanks for giving me very useful knowledge and i found you really expert in this. I really appreciated your effort.

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January 25, 2011
12:55 pm CEST
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alixolson
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January 25, 2011
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In addition to the MIDI In/Out port, the DTX-MULTI 12 is equipped with a USB TO HOST port that can be connected to a PC with a USB cable (sold separately) and a USB TO DEVICE port that can be save the user kit data on a USB memory.

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October 16, 2014
12:28 pm CEST
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angel10_1
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Forum Posts: 1
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October 16, 2014
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it's been a long time!!!!
i have sent you an email for a lot of thingsā€¦ and one question about this thread :
what is the bitumen tape and where can we buy it?

February 3, 2018
10:58 am CEST
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Timppa
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Forum Posts: 1
Member Since:
February 3, 2018
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Hi, and many thanks for the circuitry needed... Here is my interpretation of the subject. Designed to work on a regular hi hat stand...20180203_001831.jpgImage Enlarger

15176517280261849575386.jpgImage Enlarger

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