maeffjus wrote: > Hi Greg, > > thanks for the answer. The capacitors bulged to is a optical illusion by > the picture. I well understand what you mean, but in fact it is > perfectly flat. > Sure, what I did, I had connected (soldering is also quite quick) the > PLAY button to the board and it worked just perfect. > The I started soldering one after another (as it is each just the > signal-wire) to the board and simultaneously writing the correct BCM > numbers into the daemon-command string. > > So what I can not understand is, that the buttons act so incredibly > weird. I mean, I have no components in-between and also there is just > one wire for each button to the Pi. > > The only thing I don't know about, if it can cause a problem is that the > signal between the button and GND changes from short-circuit / bridged > to +3V. > (When pressing the button). > Regards, > Maeffjus
Hi Maeffjus, Good news on the cap! Do you need pull up or pull down resistors with these capacitive switches? With normal switches you do. This insures that the value on the GPIO pin is either 0v or 3.3v not floating. There is an option of setting the internal GPIO pull up or pull down resistors in software. Another point is, a couple of the GPIO already have external pull up or pull down resistor installed on the RPi PCB. regards Greg ------------------------------------------------------------------------ Greg Erskine's Profile: http://forums.slimdevices.com/member.php?userid=7403 View this thread: http://forums.slimdevices.com/showthread.php?t=109769 _______________________________________________ unix mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/unix
