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Member Since: April 26, 2008

Country: United States

  • I'm looking for a slightly more dense version of this. Piano keys seem to be an average of 23mm (wikipedia: "Modern piano keyboards ordinarily have an octave span of 164–165 mm (6.5–6.5 in); resulting in the width of black keys averaging 13.7 mm (0.54 in) and white keys about 23.5 mm (0.93 in) wide at the base, disregarding space between keys. Several reduced-size standards have been proposed and marketed.") and I'd ideally like to have one per key.... any chance.....

  • Is there any way to do velocity detection with this or any similar device? I need to make a fairly sizeable grid of these (approximately 101 keys....) but with velocity sensitivity.. is there any way to get velocity out of the minute timescale changes in electrical value as the switch contacts using a chip?

  • With 380mA. mine is 122-133F measured by IR. It is stable and doesn't seem to need a heatsink.

  • Any chance I could emulate a HID keyboard on the USB interface?

  • Would love an open-source reprogrammable version of this with bluetooth and 5 UI buttons usual Up, Down, Left, Right, OK in the middle type deal....

  • I'm trying to port your SparkFun LED library over to i2cDriver from Arduino/Wire.h and come up with a generic library solution I can use for most of your libraries... But I'm having a crazy trouble with compilation of the borrowed and modified arduino libs which I'm yoinking progmem out of....


  • Can the D-/D+ pins be passed on to another board of yours to end up with serial? I bought one of the CH boards but despite passing a loopback wire test, it is unable to communicate with my supposedly 3.3V device I had no trouble talking to an RPI with. I'm looking for alternatives and figured while I'm at it, I might as well source power.

  • It's actually unusable even on an empty i2cdriver bus with only 3 of these connected and doing nothing yet.

  • I second this. I've seen this same thing. I changed my whole lineup just to work around it thinking it was the RPI's crappy bus, only to find it's the perfect storm for both.

  • Judging from the firmware, I can plug one in, change its address in software once and that will be written in firmware. The other I can just jumper with solder.

No public wish lists :(