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""" Includes """
import smbus
import sys
import time
import logging
logging.basicConfig(filename='error.log',level=logging.DEBUG)
def errorHandler(type, errorMsg):
if type == 1: # Debug
logging.debug(errorMsg)
print("Debug Message: See logfile")
elif type == 2: # info
logging.info(errorMsg)
elif type == 3: # Warning
logging.warning(errorMsg)
elif type == 4: # Error
logging.error(errorMsg)
print("Error: See logfile")
elif type == 5: # Error
logging.critical(errorMsg)
print("Critical Error: See logfile")
else:
logging.critical(errorMsg)
print("Something went terribly wrong! Not even the errorhandler was able to find out what. Which basically means 'You are doomed'")
""" Variables """
lockdown = False
def version():
print "i2cPixel is Version 1.0.0"
def lockBus():
lockdown = True
def unlockBus():
lockdown = False
def available():
global lockdown
if lockdown == True:
return False
elif lockdown == False:
return True
else:
return False
def setAddress(address):
global arduinoAddress
arduinoAddress = address
def setBus(n):
if not available:
return 2
else:
lockBus()
global bus
try:
bus = smbus.SMBus(n)
except:
errorMsg = sys.exc_info()[0]
errorHandler(5, errorMsg)
unlockBus()
def greeting():
if not available:
return 2
else:
lockBus()
try:
""" Send heartbeat """
bus.write_byte(arduinoAddress, 0x01)
""" Wait for response """
try:
response = bus.read_byte(arduinoAddress)
if response == 0x01:
returnMsg = True
else:
returnMsg = False
except:
errorMsg = sys.exc_info()[0]
errorHandler(5, errorMsg)
returnMsg = False
""" Return if heartbeat was received """
return returnMsg
except:
errorMsg = sys.exc_info()[0]
errorHandler(5, errorMsg)
unlockBus()
def ping():
# Send 0x02 vil faa tilbake 42 hvis live
return False
def setBrightness(intensity):
if not available:
return 2
else:
lockBus()
try:
if intensity > 255:
n1 = 255
n2 = n - 255
else:
n1 = 0
n2 = intensity
bus.write_block_data(arduinoAddress, 0x03, [n1, n2])
except:
errorMsg = sys.exec_info()[0]
errorHandler(5, errorMsg)
unlockBus()
def setPixel(n, red, green, blue):
""" Send values for changing pixel values """
if not available:
return 2
else:
lockBus()
try:
if n > 255:
n1 = 255
n2 = n - 255
else:
n1 = 0
n2 = n
bus.write_block_data(arduinoAddress, 0x04, [n1, n2, red, green, blue])
except:
errorMsg = sys.exc_info()[0]
errorHandler(5, errorMsg)
unlockBus()
def blink(time, red, green, blue):
""" Flash all pixels with a colour """
if not available:
return 2
else:
lockBus()
try:
bus.write_block_data(arduinoAddress, 0x05, [red, green, blue, time])
except:
errorMsg = sys.exc_info()[0]
errorHandler(5, errorMsg)
unlockBus()
def show():
""" Send values for turning pixels on """
if not available:
return 2
else:
lockBus()
try:
bus.write_byte(arduinoAddress, 0x06)
except:
errorMsg = sys.exc_info()[0]
errorHandler(5, errorMsg)
unlockBus()
def disableTimeout():
if not available:
return 2
else:
lockBus()
try:
bus.write_byte(arduinoAddress, 0x07)
except:
errorMsg = sys.exec_info()[0]
errorHandler(5, errorMsg)
unlockBus()
def waitForSensor():
while True:
try:
sensorData = bus.read_byte(arduinoAddress)
if sensorData == 0x02:
print "Sensor 1 Triggered"
return 1
break;
if sensorData == 0x03:
print "Sensor 2 Triggered"
return 2
break;
except Exception:
pass
def HEX(value):
value = value.lstrip('#')
lv = len(value)
return tuple(int(value[i:i+lv/3], 16) for i in range(0, lv, lv/3))
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