if (DI[i] != DI_new[i]):
#If old doesn't match new value... that PIN changed
print("PIN "+str(i)+" changed")
#print out a list of the current state of all inputs
for i in range(0,7):
sys.stdout.write(str(DI[i]))
sys.stdout.write(" ")
print("")
print("")
#Don't forget that step... new=old
DI=DI_new
# Setup the GPIO
GPIO.setmode(GPIO.BCM)
GPIO.setup(INT_GPIO, GPIO.IN)
# Add Interrupt on GPIO 4 on FALLING edge.
# Be aware that the bouncetime may need to change in our environment.
GPIO.add_event_detect(INT_GPIO, GPIO.RISING, callback = Interrupt, bouncetime = 200)
print ("Interrupt handler set... waiting")
print (i2ciotools.readDigitalInput(I2C_PORT, DI_MODULE_1_ADDR))
while True:
print (".")
time.sleep(100)
try:
#Set the output PIN/Port 1 to 0 (inactive)
#Use the slightly different writeDigitalOutputPort to do that...
i2ciotools.writeDigitalOutputPort(I2C_PORT, DO_MODULE_1_ADDR, 1, 0)
#Read using the readDigitalInputPort
if (i2ciotools.readDigitalInputPort(I2C_PORT, DI_MODULE_1_ADDR,1)==1):
print ("Input is active")
else:
print ("Input is NOT active")
#Let's go hardcore and send the byte directly (note the negated byte)
#Set the output PIN/Port 1 to 1 (active)
i2ciotools.writeDigitalOutput(I2C_PORT, DO_MODULE_1_ADDR, 0xFE)
if (i2ciotools.readDigitalInput(I2C_PORT, DI_MODULE_1_ADDR)==0xFE):
print ("Input is active")
else:
print ("Input is NOT active")
#Set the output PIN/Port 1 to 0 (inactive)
#Back to the shortest notation...
i2ciotools.writeDigitalOutputSimple(EXAMPLE_DIGITAL_OUTPUT, 0)
if (i2ciotools.readDigitalInputSimple(EXAMPLE_DIGITAL_INPUT)==0xfe):
print ("Input is active")
else:
print ("Input is NOT active")
except:
print ("ERROR! DI and DO... you really should check the addresses of these modules and if you wired them correctly")