Yoctopuce Yocto-IO Mode D'emploi page 41

import os, sys
from yocto_api import
from yocto_digitalio
def usage():
scriptname = os.path.basename(sys.argv[0])
print("Usage:")
print(scriptname +
print(scriptname +
print(scriptname +
print('Example:')
print(scriptname +
sys.exit()
def die(msg):
sys.exit(msg +
if len(sys.argv) <
usage()
target = sys.argv[1].upper()
# Setup the API to use local USB devices
errmsg = YRefParam()
if YAPI.RegisterHub("usb", errmsg) !=
sys.exit("init error"
if target == 'ANY':
# retreive any Relay then find its serial #
io = YDigitalIO.FirstDigitalIO()
if io is None:
die('No module
m = io.get_module()
target = m.get_serialNumber()
print('using ' + target)
io = YDigitalIO.FindDigitalIO(target +
if not (io.isOnline()):
die('device not
# lets configure the channels direction
# bits 0..1 as output
# bits 2..3 as input
io.set_portDirection(0x03)
io.set_portPolarity(0)
io.set_portOpenDrain(0)
print("Channels 0..1 are configured as outputs and channels
print("are configured as inputs, you can connect some inputs to
print("ouputs and see what
outputdata = 0
while io.isOnline():
inputdata = io.get_portState()
line = "" # display part state value as binary
for i in range(0,
if (inputdata &
line +=
else:
line +=
print(" port value = "
outputdata = (outputdata +
io.set_portState(outputdata)
YAPI.Sleep(1000, errmsg)
print("Module disconnected")
YAPI.FreeAPI()
www.yoctopuce.com
*
import *
' <serial_number>')
' <logical_name>')
' any')
' any')
' (check USB cable)')
2:
YAPI.SUCCESS:
+ errmsg.value)
connected')
'.digitalIO')
connected')
# polarity set to regular
# No open drain
happens")
# read port values
4):
(8 >> i)) > 0:
'1'
'0'
+ line)
1) % 4 # cycle ouput 0..3
# We could have used set_bitState as well
7. Utilisation du Yocto-IO en Python
2..3")
")
35