Using Interlink FSR400 for HiHat pedal

[jblain]

Hey man. I am not dmitri but trying to help. If you dont put your foot on the pedal it should play whatever note the hat bow is mapped to, i guess yours is mapped to the splash note. Change it in the pad settings.

Hey thank you very much, that was my problem !

I now have a very nice working DIY hihat

[shuey79]

MegaDrum supplies some voltage on the HiHat input but it is only good enough for a simple switch type pedals. For a variable HiHat pedal you must also use HiHat power source to provide bias for good resolution. Basically, you connect your FSR to the ground and the HiHat pedal signal input and also add a biasing resistor between the HiHat pedal signal input and the HiHat power source. The value of this biasing resistor will depend on the variable resistor. In your case I think anything between 5k and 20k will be good.
On the modules I build the pinout on the HiHat pedal input is this: sleeve is ground, tip is signal and ring is power source.

Hello Dmitri,

Following your instructions, I was able to get my pedal to work correctly. I can now go from fully closed (127) to fully open (0) when I activate the pedal and monitor the midi log in the megadrum manager software.

However I am having difficulties configuring the hihat controller parameters. They do not correspond to the ones described here http://www.megadrum.info/content/hihat-pedal-settings . I am guessing my firmware is more recent than the documentation. Were can I find up to date information about the current set of hihat controller parameters ?

My problem is that right now, I only get midi 46 outputs (splash) from megadrum when I strike the hihat (single zone), regardless of the hihat pedal position ?

I can get chicks if I stomp the pedal.

What resister did you use, also do you have any videos or sound samples of how yours turned out?