class PHIDGET_TEXTLCD(object):
""" Phidget TextLCD with integrated InterfaceKit """
def __init__(self, serialNumber=None, waitForAttach=1000, **kargs):
self.textLCD = TextLCD()
if 'remoteHost' in kargs:
self.textLCD.openRemote(kargs['remoteHost'], serialNumber)
else:
self.textLCD.openPhidget(serialNumber)
h = [
'onAttachHandler',
'onDetachHandler',
'onErrorhandler'
]
for event in h:
self.__dict__[event] = None
if event in kargs:
self.__dict__[event] = kargs[event]
self.textLCD.setOnAttachHandler(self.attached)
self.textLCD.setOnDetachHandler(self.detached)
if waitForAttach > 0:
try:
self.textLCD.waitForAttach(waitForAttach)
except PhidgetException as e:
#print("Phidget Exception %i: %s" % (e.code, e.details))
try:
self.textLCD.closePhidget()
except PhidgetException as e2:
pass
raise e
def attached(self, e):
from Phidgets.Phidget import PhidgetID
if e.device.getDeviceID()==PhidgetID.PHIDID_TEXTLCD_ADAPTER:
e.device.setScreenIndex(0)
e.device.setScreenSize(TextLCD.TextLCD_ScreenSize.PHIDGET_TEXTLCD_SCREEN_2x20)
if self.onAttachHandler: self.onAttachHandler(e)
def detached(self, e):
if self.onDetachHandler: self.onDetachHandler(e)
def error(self, e):
error = {'code': e.eCode, 'description': e.description}
if self.onErrorhandler: self.onErrorhandler(error, e)
class csss_lcd:
str_top = ""
str_bottom = ""
top_len = 0
bot_len = 0
textLCD = None
def __init__(self):
print("INIT: LCD")
try:
self.textLCD = TextLCD()
except RuntimeError as e:
print("RuntimeExceotion: %s" % e.details)
print("Exiting....")
exit(1)
try:
self.textLCD.setOnAttachHandler(TextLCDAttached)
self.textLCD.setOnDetachHandler(TextLCDDetached)
self.textLCD.setOnErrorhandler(TextLCDError)
except PhidgetException as e:
print("Phidget Exception %i: %s" % (e.code, e.details))
print("Exiting....")
exit(1)
try:
self.textLCD.openPhidget()
except PhidgetException as e:
print("Phidget Exception %i: %s" % (e.code, e.details))
print("Exiting....")
exit(1)
sleep(2)
return
#Information Display Function
def display(self, row, str):
print("Displaying %s" % str)
if len(str) > 20:
self.scroll(row, str)
try:
if self.textLCD.getDeviceID()==PhidgetID.PHIDID_TEXTLCD_ADAPTER:
self.textLCD.setScreenIndex(0)
self.textLCD.setScreenSize(TextLCD_ScreenSize.PHIDGET_TEXTLCD_SCREEN_2x8)
self.textLCD.setDisplayString(row, str)#bytes(str, 'utf-8'))
except PhidgetException as e:
print("Phidget Exception %i: %s" % (e.code, e.details))
def displaySlow(self, row,str):
self.display(row, str)
sleep(0.75)
def scroll(self, row, str):
length = len(str)
currIndex = 0
endIndex = 20
self.displaySlow(row, str[currIndex:endIndex])
for currIndex in range (1,length):
self.display(row,str[currIndex:endIndex])
if endIndex < length:
endIndex += 1
sleep(0.22)
self.clearRow(row)
def clearRow(self, row):
print("Clearing TextLCD")
self.display(row, " ")
def clearAll(self):
self.clearRow(0)
self.clearRow(1)
def close(self):
try:
print("Closing TextLCD")
self.textLCD.closePhidget()
except PhidgetException as e:
print("Phidget Exception &i: %s" % (e.code, e.details))
print("Exiting....")
exit(1)
interfaceKit.openPhidget()
except PhidgetException as e:
print("Phidget Exception %i: %s" % (e.code, e.details))
print("Exiting....")
exit(1)
print("Waiting for attach....")
try:
textLCD.waitForAttach(10000)
interfaceKit.waitForAttach(10000)
except PhidgetException as e:
print("Phidget Exception %i: %s" % (e.code, e.details))
try:
interfaceKit.closePhidget()
textLCD.closePhidget()
except PhidgetException as e:
print("Phidget Exception %i: %s" % (e.code, e.details))
print("Exiting....")
exit(1)
print("Exiting....")
exit(1)
else:
displaylcdinfo()
dispalyifkinfo()
print("Setting the data rate for each sensor index to 4ms....")
for i in range(interfaceKit.getSensorCount()):
try:
interfaceKit.setDataRate(i, 4)
except PhidgetException as e:
#Open the textLCD
try:
textLCD.openPhidget()
except PhidgetException as e:
print("Phidget Exception %i: %s" % (e.code, e.details))
print("Exiting....")
exit(1)
#Wait for the device to attach
try:
textLCD.waitForAttach(10000)
except PhidgetException as e:
print("Phidget Exception %i: %s" % (e.code, e.details))
try:
textLCD.closePhidget()
except PhidgetException as e:
print("Phidget Exception %i: %s" % (e.code, e.details))
print("Exiting....")
exit(1)
print("Exiting....")
exit(1)
try:
textLCD.setScreenIndex(0)
#print("Writing to first row....")
textLCD.setDisplayString(0, "Initialising...")
sleep(2)
textLCD.setBacklight(True)
