Activities/Turtle Art/Programmable Brick: Difference between revisions
| Line 198: | Line 198: | ||
# The light sensor is only available on the XO 1.75 | # The light sensor is only available on the XO 1.75 | ||
device = '/sys/devices/platform/olpc-ols.0/ | device = '/sys/devices/platform/olpc-ols.0/level' | ||
if os.path.exists(device): | if os.path.exists(device): | ||
| Line 232: | Line 232: | ||
cmd='sudo chmod 777 {!s}'.format(devicestr) | cmd='sudo chmod 777 {!s}'.format(devicestr) | ||
os.system(cmd) #caution! changing system file permissions | os.system(cmd) #caution! changing system file permissions | ||
fd =open(devicestr, 'rb') | fd = open(devicestr, 'rb') | ||
for x in range(12): | for x in range(12): | ||
fd.read(1) #does not return till the switch state changes | fd.read(1) #does not return till the switch state changes | ||