def test_alreadyinuse(self):
"""Test 'already in use' warning"""
GPIO.setwarnings(False)
with open('/sys/class/gpio/export','wb') as f:
f.write(str(LED_PIN_BCM).encode())
with open('/sys/class/gpio/gpio%s/direction'%LED_PIN_BCM,'wb') as f:
f.write(b'out')
with open('/sys/class/gpio/gpio%s/value'%LED_PIN_BCM,'wb') as f:
f.write(b'1')
with warnings.catch_warnings(record=True) as w:
GPIO.setup(LED_PIN, GPIO.OUT) # generate 'already in use' warning
self.assertEqual(len(w),0) # should be no warnings
with open('/sys/class/gpio/unexport','wb') as f:
f.write(str(LED_PIN_BCM).encode())
GPIO.cleanup()
GPIO.setwarnings(True)
with open('/sys/class/gpio/export','wb') as f:
f.write(str(LED_PIN_BCM).encode())
with open('/sys/class/gpio/gpio%s/direction'%LED_PIN_BCM,'wb') as f:
f.write(b'out')
with open('/sys/class/gpio/gpio%s/value'%LED_PIN_BCM,'wb') as f:
f.write(b'1')
with warnings.catch_warnings(record=True) as w:
GPIO.setup(LED_PIN, GPIO.OUT) # generate 'already in use' warning
self.assertEqual(w[0].category, RuntimeWarning)
with open('/sys/class/gpio/unexport','wb') as f:
f.write(str(LED_PIN_BCM).encode())
GPIO.cleanup()
def test_cleanall(self):
GPIO.setup(LOOP_OUT, GPIO.OUT)
GPIO.setup(LED_PIN, GPIO.OUT)
self.assertEqual(GPIO.gpio_function(LOOP_OUT), GPIO.OUT)
self.assertEqual(GPIO.gpio_function(LED_PIN), GPIO.OUT)
GPIO.cleanup()
self.assertEqual(GPIO.gpio_function(LOOP_OUT), GPIO.IN)
self.assertEqual(GPIO.gpio_function(LED_PIN), GPIO.IN)
def test_outputread(self):
"""Test that an output() can be input()"""
GPIO.setup(LED_PIN, GPIO.OUT)
GPIO.output(LED_PIN, GPIO.HIGH)
self.assertEqual(GPIO.input(LED_PIN), GPIO.HIGH)
GPIO.output(LED_PIN, GPIO.LOW)
self.assertEqual(GPIO.input(LED_PIN), GPIO.LOW)
GPIO.cleanup()
def test_loopback(self):
"""Test output loops back to another input"""
GPIO.setup(LOOP_IN, GPIO.IN, pull_up_down=GPIO.PUD_OFF)
GPIO.setup(LOOP_OUT, GPIO.OUT, initial=GPIO.LOW)
self.assertEqual(GPIO.input(LOOP_IN), GPIO.LOW)
GPIO.output(LOOP_OUT, GPIO.HIGH)
self.assertEqual(GPIO.input(LOOP_IN), GPIO.HIGH)
GPIO.cleanup()
def test_cleanupwarning(self):
"""Test initial GPIO.cleanup() produces warning"""
GPIO.setwarnings(False)
GPIO.setup(SWITCH_PIN, GPIO.IN)
with warnings.catch_warnings(record=True) as w:
GPIO.cleanup()
self.assertEqual(len(w),0) # no warnings
GPIO.cleanup()
self.assertEqual(len(w),0) # no warnings
GPIO.setwarnings(True)
GPIO.setup(SWITCH_PIN, GPIO.IN)
with warnings.catch_warnings(record=True) as w:
GPIO.cleanup()
self.assertEqual(len(w),0) # no warnings
GPIO.cleanup()
self.assertEqual(w[0].category, RuntimeWarning) # a warning
def runTest(self):
GPIO.setmode(GPIO.BCM)
GPIO.setup(LED_PIN_BCM, GPIO.IN)
self.assertEqual(GPIO.gpio_function(LED_PIN_BCM), GPIO.IN)
GPIO.setup(LED_PIN_BCM, GPIO.OUT)
self.assertEqual(GPIO.gpio_function(LED_PIN_BCM), GPIO.OUT)
GPIO.setmode(GPIO.BOARD)
GPIO.setup(LED_PIN, GPIO.IN)
self.assertEqual(GPIO.gpio_function(LED_PIN), GPIO.IN)
GPIO.setup(LED_PIN, GPIO.OUT)
self.assertEqual(GPIO.gpio_function(LED_PIN), GPIO.OUT)
def runTest(self):
GPIO.setup(LED_PIN, GPIO.OUT)
pwm = GPIO.PWM(LED_PIN, 50)
pwm.start(100)
print "\nPWM tests"
response = raw_input('Is the LED on (y/n) ? ').upper()
self.assertEqual(response,'Y')
pwm.start(0)
response = raw_input('Is the LED off (y/n) ? ').upper()
self.assertEqual(response,'Y')
print "LED Brighten/fade test..."
for i in range(0,3):
for x in range(0,101,5):
pwm.ChangeDutyCycle(x)
time.sleep(0.1)
for x in range(100,-1,-5):
pwm.ChangeDutyCycle(x)
time.sleep(0.1)
pwm.stop()
response = raw_input('Did it work (y/n) ? ').upper()
self.assertEqual(response,'Y')
GPIO.cleanup()
import RaPi.GPIO as GPIO
import time
PIN_NUM = 12
GPIO.setmode(GPIO.BOARD)
GPIO.setup(PIN_NUM,GPIO.OUT)
frequency = 50
p = GPIO.PWM(PIN_NUM,frequency)
p.start(0)
try:
while True:
for dutyCycle in range(0,100,5):
p.ChangeDutyCycle(dutyCycle)
time.sleep(0.1)
for dutyCycle in range(100,0,-5):
p.ChangeDutyCycle(dutyCycle)
time.sleep(0.1)
except KeyboardInterrupt:
pass
p.stop()
GPIO.cleanup()
import RaPi.GPIO as GPIO
import time
channel = 7
GPIO.setmode(GPIO.BOARD)
GPIO.setup(channel, GPIO.IN, GPIO.PUD_DOWN)
print " Now input is Low\n Our task is performed when it becomes High"
while True:
if GPIO.input(channel):
print "Input was High,begin to perform"
print "Count Down"
for i in range(7, 0, -1):
print "%d" % i
time.sleep(1)
print "Performed!"
exit()
import RaPi.GPIO as GPIO
import time
#channel = 15
GPIO.setmode(GPIO.RAW)
GPIO.setup(GPIO.PI+17,GPIO.IN,GPIO.PUD_DOWN)
print " Now input is Low\n Our task is performed when it becomes High"
while True:
if GPIO.input(GPIO.PI+17):
print "Input was High,begin to perform"
print "Count Down"
for i in range(7,0,-1):
print "%d" %i
time.sleep(1)
print "Performed!"
exit()
GPIO.cleanup(GPIO.PI+17)
#!/usr/bin/env python import RaPi.GPIO as GPIO import time from threading import Timer PIN_NUM = 12 channel = 7 GPIO.setmode(GPIO.BOARD) GPIO.setup(PIN_NUM,GPIO.OUT) GPIO.output(PIN_NUM,True) print "\n value_%d = %d\n" %(PIN_NUM,GPIO.input(PIN_NUM)) GPIO.setup(channel,GPIO.IN,GPIO.PUD_DOWN) print "\n value_%d = %d\n" %(channel,GPIO.input(channel)) def makehigh(): print "\n value_%d = %d\n" %(channel,GPIO.input(channel)) GPIO.output(PIN_NUM,False) print "\n value_%d = %d\n" %(PIN_NUM,GPIO.input(PIN_NUM)) GPIO.wait_for_edge(channel, GPIO.RISING) t = Timer(1,makehigh) t.start()
#!/usr/bin/env python import RaPi.GPIO as GPIO import time from threading import Timer SWITCH_PIN = 18 GPIO.setmode(GPIO.BOARD) GPIO.setup(SWITCH_PIN,GPIO.IN,GPIO.PUD_UP) print "\n value_%d = %d\n" %(SWITCH_PIN,GPIO.input(SWITCH_PIN)) GPIO.add_event_detect(SWITCH_PIN, GPIO.RISING,bouncetime=200) # add rising edge detection on a channel switchcount = 0 while switchcount < 2: if GPIO.event_detected(SWITCH_PIN): switchcount += 1 print 'Button pressed',switchcount print "\n value_%d = %d\n" %(SWITCH_PIN,GPIO.input(SWITCH_PIN)) GPIO.remove_event_detect(SWITCH_PIN)
def test_output_on_input(self):
"""Test output() can not be done on input"""
GPIO.setup(SWITCH_PIN, GPIO.IN)
with self.assertRaises(RuntimeError):
GPIO.output(SWITCH_PIN, GPIO.LOW)
GPIO.cleanup()
import RaPi.GPIO as GPIO validPins = [11,12,13,15] GPIO.setmode(GPIO.BOARD) GPIO.setup(11,GPIO.IN) GPIO.setup(12,GPIO.OUT) GPIO.setup(13,GPIO.IN) GPIO.setup(15,GPIO.OUT) for pin in validPins: fun = GPIO.gpio_function(pin) print fun
#!/usr/bin/env python
import RaPi.GPIO as GPIO
import time
#LED Mode BCM
#PINs = [2,3,4,14,15,17,18,27,22,23,24,10,9,25,11,8,7,0,1,5,6,12,13,19,16,26,20,21]
#[2,3,4,14,18,23,24,10,9,11,8,7,0,1,5,6,12,13,19,16,26,20,21]
#[15,17,27,22,25]
#GPIO.setmode(GPIO.BCM)
#LED Mode BOARD
#PINs = [3,5,7,8,10,11,12,13,15,16,18,19,21,22,23,24,26,27,28,29,31,32,33,35,36,37,38,40]
#[3,5,7,8,12,16,18,19,21,23,24,26,27,28,29,31,32,33,35,36,37,38,40]
#[10,11,13,15,22]
PINs = [10]
GPIO.setmode(GPIO.BOARD)
while True:
for PIN_NUM in range(len(PINs)):
try:
GPIO.setup(PINs[PIN_NUM], GPIO.OUT)
except:
print("Failed to setup GPIO %d", PIN_NUM)
GPIO.output(PINs[PIN_NUM], True)
time.sleep(0.5)
GPIO.output(PINs[PIN_NUM], False)
time.sleep(0.5)
def setUp(self):
GPIO.setup(LOOP_IN, GPIO.IN)
GPIO.setup(LOOP_OUT, GPIO.OUT)
def runTest(self):
# Test mode not set (BOARD or BCM) exception
with self.assertRaises(RuntimeError) as e:
GPIO.setup(LED_PIN, GPIO.OUT)
self.assertEqual(str(e.exception), 'Please set pin numbering mode using GPIO.setmode(GPIO.BOARD) or GPIO.setmode(GPIO.BCM)')
GPIO.setmode(GPIO.BOARD)
# Test not set as OUTPUT message
with self.assertRaises(RuntimeError) as e:
GPIO.output(LED_PIN, GPIO.HIGH)
self.assertEqual(str(e.exception), 'The GPIO channel has not been set up as an OUTPUT')
GPIO.setup(LED_PIN, GPIO.IN)
# Test setup(..., pull_up_down=GPIO.HIGH) raises exception
with self.assertRaises(ValueError):
GPIO.setup(LED_PIN, GPIO.IN, pull_up_down=GPIO.HIGH)
# Test 'already in use' warning
GPIO.cleanup()
with open('/sys/class/gpio/export','wb') as f:
f.write(str(LED_PIN_BCM).encode())
with open('/sys/class/gpio/gpio%s/direction'%LED_PIN_BCM,'wb') as f:
f.write(b'out')
with open('/sys/class/gpio/gpio%s/value'%LED_PIN_BCM,'wb') as f:
f.write(b'1')
with warnings.catch_warnings(record=True) as w:
GPIO.setup(LED_PIN, GPIO.OUT) # generate 'already in use' warning
self.assertEqual(w[0].category, RuntimeWarning)
with open('/sys/class/gpio/unexport','wb') as f:
f.write(str(LED_PIN_BCM).encode())
GPIO.cleanup()
# test initial value of high reads back as high
GPIO.setup(LED_PIN, GPIO.OUT, initial=GPIO.HIGH)
self.assertEqual(GPIO.input(LED_PIN), GPIO.HIGH)
GPIO.cleanup()
# test initial value of low reads back as low
GPIO.setup(LED_PIN, GPIO.OUT, initial=GPIO.LOW)
self.assertEqual(GPIO.input(LED_PIN), GPIO.LOW)
GPIO.cleanup()
def setUp(self):
GPIO.setup(SWITCH_PIN, GPIO.IN, pull_up_down=GPIO.PUD_UP)
import RaPi.GPIO as GPIO
import time
#PIN_NUM = 15
#GPIO.setmode(GPIO.BOARD)
#GPIO.setup(PIN_NUM,GPIO.OUT)
GPIO.setmode(GPIO.RAW)
GPIO.setup(GPIO.PI+17,GPIO.OUT)
frequency = 50
#p = GPIO.PWM(PIN_NUM,frequency)
p = GPIO.PWM(GPIO.PI+17,frequency)
p.start(0)
try:
while True:
for dutyCycle in range(0,100,5):
p.ChangeDutyCycle(dutyCycle)
time.sleep(0.1)
for dutyCycle in range(100,0,-5):
p.ChangeDutyCycle(dutyCycle)
time.sleep(0.1)
except KeyboardInterrupt:
pass
p.stop()
GPIO.cleanup()
#!/usr/bin/env python import RaPi.GPIO as GPIO import time GPIO.setmode(GPIO.BOARD) GPIO.setup(7, GPIO.IN, pull_up_down=GPIO.PUD_UP) print "\n value_7 = %d\n" %(GPIO.input(7)) GPIO.setup(8, GPIO.IN, pull_up_down=GPIO.PUD_DOWN) print "\n value_8 = %d\n" %(GPIO.input(8)) GPIO.setup(12, GPIO.IN, pull_up_down=GPIO.PUD_UP) print "\n value_12 = %d\n" %(GPIO.input(12)) GPIO.setup(12, GPIO.IN, pull_up_down=GPIO.PUD_DOWN) print "\n value_12 = %d\n" %(GPIO.input(12)) #GPIO.cleanup()
#!/usr/bin/env python import RaPi.GPIO as GPIO import time PIN_0 = 3 PIN_1 = 5 #GPIO.setmode(GPIO.BCM) GPIO.setmode(GPIO.BOARD) GPIO.setup(PIN_0,GPIO.OUT) GPIO.setup(PIN_1,GPIO.IN) while True: GPIO.output(PIN_0,True) print "\n value = %d\n" %(GPIO.input(PIN_1)) time.sleep(1) GPIO.output(PIN_0,False) print "\n value = %d\n" %(GPIO.input(PIN_1)) time.sleep(1) GPIO.cleanup()
