KaZeR wrote: > Hi everyone. > > I'd need to be able to record accelerometers values and graph them later. > The measure should last around 30 minutes. > > Can anyone recommend an application for that? > > Thanks in advance. > > _______________________________________________ > Openmoko community mailing list > community@lists.openmoko.org > http://lists.openmoko.org/mailman/listinfo/community > the only thing you need to do is to pipe /dev/input/event2 or /dev/input/event3 into a file. The analysis of the data can be done later. You will get a lot of data though after 30 minutes. This is a python script reading and evaluating the data. Its not mine. I think I got it from the wiki somewhere. Do a hexdump /dev/input/event3 to get an impression how much data we are talking about first.
#!/usr/bin/python import struct from math import sqrt x = 0 y = 0 z = 0 secondsensorfile = "/dev/input/event2" #int, int, short, short, int fmt = 'iihhi' #open file in binary mode in_file = open(secondsensorfile,"rb") event = in_file.read(16) while event: (time1,time2, type, code, value) = \ struct.unpack(fmt,event) time = time1 + time2 / 1000000.0 if type == 2: if code == 0: x = value if code == 1: y = value if code == 2: z = value if type == 0 and code == 0: sum = int(sqrt(x*x + y*y + z*z)) print x, y, z, sum event = in_file.read(16) in_file.close() _______________________________________________ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community