monome wiki 40h analog knob tutorial

howto - disassemble the 40h

tehn — Wed, 13 Jun 2007 18:39:08 +0000

howto - disassemble the 40h

…
we suggest adding a .1uH inductor in place of the green jumper wire, which is right next to the usb port on the logic board. this will clean up the analog signal.
…
Content was also deleted

we highly suggest adding a .1uH inductor in place of the green jumper wire, which is right next to the usb port on the logic board. this will clean up the analog signal.

tehn — Tue, 19 Dec 2006 17:09:36 +0000

we *highly suggest* adding a .1uH inductor in place of the green jumper wire, which is right next to the usb port on the logic board. this will clean up the analog signal.
…

[[insert picture of analog_knob.jpg]]

tehn — Sun, 12 Nov 2006 15:07:58 +0000

[[insert picture of analog_knob.jpg]]

potentiometers have three connections. the center connector goes to one of the J_A pads on the logic board. the side should go to J_0 (ground) and the other to J_5.

in the photo, red is 5, black is 0, blue is A.

use a low-ish resistance potentiometer, like 1k or 5k.

now you can send messages:

/box/adc_enable 0 1

to turn on the first adc channel. (given you connected the wire to the leftmost J_A) and you'll get these messages back:

/box/adc 0 0.45

which means 0.45 on adc channel 1. range is 0. to 1. float.
…