class KeypadDisplay(object):
def __init__(self,
lcd_address,
button_pins=[17, 18, 27, 22, 23, 24, 25],
led_pins=[16, 20, 21]):
"""Initializes the KeypadDisplay object
button_pins: A list of 7 GPIO pins used for button inputs, order is A, B, L, U, D, R, C
pin Usage
---|-----------
17 | Button A
18 | Button B
27 | Button Left
22 | Button Up
23 | Button Down
24 | Button right
25 | Button C
led_pins: A list of 3 GPIO pins to use for led outputs, order is R, G, B
pin Usage
---|----------
16 | Red LED
20 | Yellow LED
21 | Green LED
"""
self.button_a = Button(button_pins[0])
self.button_b = Button(button_pins[1])
self.button_left = Button(button_pins[2])
self.button_up = Button(button_pins[3])
self.button_down = Button(button_pins[4])
self.button_right = Button(button_pins[5])
self.button_c = Button(button_pins[6])
self.led_red = LED(led_pins[0])
self.led_yellow = LED(led_pins[1])
self.led_green = LED(led_pins[2])
self.lcd = LCD(I2CPCF8574Interface(lcd_address),
num_rows=4,
num_cols=20)
def set_led(self, value) -> Leds:
"""Sets the LED's according to the passed value"""
self.led_red.off()
self.led_yellow.off()
self.led_green.off()
if value in [Leds.RED, Leds.ALL]:
self.led_red.on()
if value in [Leds.YELLOW, Leds.ALL]:
self.led_yellow.on()
if value in [Leds.GREEN, Leds.ALL]:
self.led_green.on()
def print(self, message):
"""Clears the LCD and display the message"""
self.lcd.clear()
self.lcd.print(message)
#Just here becauses it is paired with the RPS printing Below
if photoPin.value:
lread = True
elif fread == lread:
interrupts += 1
lread = not lread
#LCD 1 Second Updates
if now - initial >= 1:
lcd.clear()
lcd.set_cursor_pos(0, 0) #clears and resets LCD
if (MotorPotOut <= 5000):
lcd.print(str("Speed: 0"))
elif (MotorPotOut >= 60000):
lcd.print("Speed: 100")
else:
lcd.print(("Speed: ") + (str(displayMotorPotOut)))
#RPS Printing
lcd.set_cursor_pos(1, 0)
lcd.print(("RPS: ") + str(interrupts))
interrupts = 0
#End of the 1 Second Check
initial = time.monotonic()
time.sleep(.05)
from lcd.i2c_pcf8574_interface import I2CPCF8574Interface
from digitalio import DigitalInOut, Direction, Pull
from lcd.lcd import CursorMode
import board
# Talk to the LCD at I2C address 0x27.
# The number of rows and columns defaults to 4x20, so those
# arguments could be omitted in this case.
lcd = LCD(I2CPCF8574Interface(0x27), num_rows=2, num_cols=16)
# 0x27 or 0x3F
button = DigitalInOut(board.D2)
button.direction = Direction.INPUT
button.pull = Pull.UP
button_state = None
last_state = None
value = 0
lcd.print(" CircuitPython LCD ")
time.sleep(2)
lcd.clear()
lcd.set_cursor_pos(0, 0)
lcd.print("ButtonPresses:")
# Make the cursor visible as a line.
lcd.set_cursor_mode(CursorMode.LINE)
while True:
if button.value:
print("not pressed")
else:
value = value + 1
print(value)
button_state = None
lcd.set_cursor_pos(1, 0)
StateFlipper = False
counterTouched = False
while True:
# These two if statements make touching the 'switch' wire change the increment from going up to going down and vice versa
if filippe.value and not StateFlipper:
state = state * -1
StateFlipper = True
if not filippe.value:
StateFlipper = False
# These two if statements make touching the 'counter' wire change the lcd screen value, based on if the state is positive or negative
if button.value and not counterTouched:
value = value + state
counterTouched = True
if not button.value:
counterTouched = False
# This block of code prints out the value and the increment on the lcd screen on different lines
lcd.clear()
lcd.set_cursor_pos(0, 0)
lcd.print('Value: ' + str(value))
lcd.set_cursor_pos(1, 0)
lcd.print('Change: ' + str(state))
time.sleep(.05)
button_a.direction = digitalio.Direction.INPUT
button_a.pull = digitalio.Pull.UP
switch = digitalio.DigitalInOut(board.D8)
switch.direction = digitalio.Direction.INPUT
switch.pull = digitalio.Pull.UP
from lcd.lcd import CursorMode
lcd = LCD(I2CPCF8574Interface(0x27), num_rows=4, num_cols=20)
lcd.clear()
lcd.set_cursor_pos(0,0)
lcd.print("Button presses")
lcd.set_cursor_mode(CursorMode.LINE)
presses = 0
lastbutton = True
while True:
print(button_a.value)
time.sleep(.05)
if not button_a.value and switch.value and lastbutton:
lcd.set_cursor_pos(1,0)
presses = presses + 1
lcd.print(str(presses ))
if not button_a.value and not switch.value and lastbutton:
lcd.set_cursor_pos(1,0)
presses = presses - 1
# made a switch
switch = DigitalInOut(board.D6)
switch.direction = digitalio.Direction.INPUT
switch.pull = digitalio.Pull.UP
lcd = LCD(I2CPCF8574Interface(0x27), num_rows=4, num_cols=20)
lcd.clear()
lcd.set_cursor_mode(CursorMode.LINE)
count = 0
buttonValue = True
lcd.set_cursor_pos(0, 0)
lcd.print("buttonValue:")
while True:
# count up
if not button.value and switch.value and buttonValue:
lcd.set_cursor_pos(1,0)
count = count + 1
lcd.print(str(count))
lcd.print(" ")
# count down
if not button.value and not switch.value and buttonValue:
lcd.set_cursor_pos(1,0)
count = count - 1
lcd.print(str(count))
lcd.print(" ")
buttonValue = button.value
# can be 1 or -1
# Add in all of the capacitive touch stuff
touch_pad_green = board.A0 # Will not work for Circuit Playground Express!
touch_pad_yellow = board.A1
touchGreen = touchio.TouchIn(touch_pad_green)
touchYellow = touchio.TouchIn(touch_pad_yellow)
# green will be the counter
# yellow will be the switch
# and the variables for the past values
pastGreen = None
pastYellow = None
lcd.set_cursor_pos(0, 0)
lcd.print("Increment ")
lcd.set_cursor_pos(1, 0)
lcd.print("Value ")
while True:
if touchYellow.value and not (pastYellow):
print("Touched Yellow!")
increment = increment * -1
lcd.set_cursor_pos(0, 10)
lcd.print(str(increment) + " ")
print(increment)
if touchGreen.value and not (pastGreen):
print("Touched Green!")
count = count + increment
# https://github.com/jkammau97/CircuitPython
import time
import digitalio
import board
photoPin = digitalio.DigitalInOut(board.D5)
photoPin.direction = digitalio.Direction.INPUT
photoPin.pull = digitalio.Pull.UP
from lcd.lcd import LCD
from lcd.i2c_pcf8574_interface import I2CPCF8574Interface
lcd = LCD(I2CPCF8574Interface(0x3f), num_rows=2, num_cols=16)
lcd.set_cursor_pos(0, 0)
lcd.print("The number of interrupts is ")
init = time.monotonic()
count = 0
pastInterrupt = False
#returns amount of time elapsed since the program started in SECONDS
while True:
interrupted = photoPin.value
now = time.monotonic()
if interrupted and not (pastInterrupt):
count = count + 1
print("interrupt")
pastInterrupt = interrupted
if now - init > 4: # If 4 seconds elapses
import board
import digitalio
from lcd.lcd import LCD
from lcd.i2c_pcf8574_interface import I2CPCF8574Interface
from lcd.lcd import CursorMode
button_a = digitalio.DigitalInOut(board.D3)
button_a.direction = digitalio.Direction.INPUT
button_a.pull = digitalio.Pull.UP
value = 1
lcd = LCD(I2CPCF8574Interface(0x3F), num_rows=2, num_cols=16)
lcd.clear()
lcd.set_cursor_pos(0, 0)
lcd.print("Switch State:")
while True:
if button_a.value:
lcd.set_cursor_pos(1, 0)
lcd.print("Presses:")
else:
lcd.set_cursor_pos(1, 0)
lcd.print("Presses:")
value = value + 1
lcd.print(str(value))
lcd.set_cursor_mode(CursorMode.LINE)
switch = DigitalInOut(board.D3)
switch.direction = Direction.INPUT
switch.pull = Pull.UP
button = DigitalInOut(board.D4)
button.direction = Direction.INPUT
button.pull = Pull.UP
pressed = True
lastState = True
count = 0
switched = False
lastswitch = False
dirn = 1
while True:
lcd.set_cursor_pos(0, 0)
lcd.print("Counting ",("down","up")[dirn==1])
pressed = switch.value
switched = button.value
if not pressed and lastState:
count += dirn
if not switched and lastswtich:
dirn = -dirn
lcd.set_cursor_pos(1, 0)
lcd.print("Presses: ")
lcd.set_cursor_pos(1,8)
lcd.print(str(count))
lastState = pressed
lastswitch = switched
from lcd.lcd import LCD
from lcd.i2c_pcf8574_interface import I2CPCF8574Interface
lcd = LCD(I2CPCF8574Interface(0x3f), num_rows=2, num_cols=16)
import touchio
import board
import time
import touchio
touch_A0 = touchio.TouchIn(board.A0) # Which pin the first wire is in
touch_A1 = touchio.TouchIn(board.A1) # Which pin the second wire is in
x = 0
y = 1
while True:
if touch_A0.value:
lcd.clear()
x = x + 1
lcd.print(str(x))
while touch_A0.value:
print("HelloA0"
) # Prints HelloA0 while the first wire is being touched
if touch_A1.value:
lcd.clear()
x = x - 1
lcd.print(str(x))
while touch_A1.value:
print("HelloA1"
) # Prints HelloA1 while the first wire is being touched
time.sleep(2)
counter = 0 # counter starts at zero
print("running")
while True:
if blue.value: # blue wire toggles counter direction
message = "GOING UP " # prints direction
state = False
else:
message = "GOING DOWN " # prints direction
state = True
lcd.set_cursor_pos(0, 0) # first row of lcd screen
lcd.print(message) # print direction "up or down"
if state is True: # if direction is down
direction = -1 # subtract 1 from counter
else: # if direction is up
direction = 1 # add 1 to counter
if yellow.value:
counter = counter + direction # controls which way it counts
lcd.set_cursor_pos(1, 0) # second line of lcd screen
message = "PRESS NO. "
message += str(counter) # print counter number to lcd
print(counter) # prints counter to serial moniter
lcd.print(message) # prints press no + counter
while yellow.value: # so it doesn't count continuously
time.sleep(.25)
from lcd.lcd import LCD
from lcd.i2c_pcf8574_interface import I2CPCF8574Interface
from lcd.lcd import CursorMode
# Talk to the LCD at I2C address 0x27.
# The number of rows and columns defaults to 4x20, so those
# arguments could be omitted in this case.
lcd = LCD(I2CPCF8574Interface(0x27), num_rows=4, num_cols=20)
lcd.print("abc ")
lcd.print("This is quite long and will wrap onto the next line automatically.")
lcd.clear()
# Start at the second line, fifth column (numbering from zero).
lcd.set_cursor_pos(1, 4)
lcd.print("Here I am")
# Make the cursor visible as a line.
lcd.set_cursor_mode(CursorMode.LINE)
lcd = LCD(I2CPCF8574Interface(0x3f), num_rows=2, num_cols=16)
touch_pad1 = board.A0
touch1 = touchio.TouchIn(touch_pad1)
touch_pad2 = board.A1
touch2 = touchio.TouchIn(touch_pad2)
count_direction = "up"
count = 0
needs_refresh = True
while True:
if needs_refresh:
lcd.clear()
lcd.print("Direction: " + count_direction) # toggles the direction
lcd.print(" Count: " + str(count)) # counts the numbers
needs_refresh = False
if touch1.value: # if touchpad1 is touched, execute the following code
needs_refresh = True # refreshes the lcd
if count_direction == "up":
count_direction = "down"
else:
count_direction = "up"
while touch1.value: #when tachpad1 is being touched, the following code will be executed
time.sleep(
0.25) # wait for .25 seconds from when touchpad1 is touched
if not touch1.value: #if touchpad1 is not being touched anymore
break # stop
continue #if it's still being touched than continue
from lcd.lcd import LCD
from lcd.i2c_pcf8574_interface import I2CPCF8574Interface
lcd = LCD(I2CPCF8574Interface(0x3f), num_rows=2, num_cols=16)
interrupter = DigitalInOut(board.D3)
interrupter.direction = Direction.INPUT
interrupter.pull = Pull.UP #makes the photointerrupter an input
lcd.set_cursor_pos(0, 0)
time.sleep(2)
counter = 0
max = 4 #delay time
start = time.time()
while True:
lcd.set_cursor_pos(0, 0)
if interrupter.value: #if an object passes through, the counter increases by one
counter += 1
time.sleep(.20) # this allows it to count individual passes
else:
counter = counter
remaining = max - time.time()
if remaining <= 0:
lcdmessage = "Interruptions: "
lcdmessage += str(counter)
lcd.print(lcdmessage)
print(lcdmessage)
max = time.time() + 4
counter = counter
import board
from lcd.lcd import LCD
from lcd.i2c_pcf8574_interface import I2CPCF8574Interface
from lcd.lcd import CursorMode
from digitalio import DigitalInOut
import time
# Talk to the LCD at I2C address 0x27 or 0x3F.
lcd = LCD(I2CPCF8574Interface(0x3F), num_rows=2, num_cols=16)
button = DigitalInOut(board.D2)
lcd.print("Ready?")
time.sleep(0.05)
lcd.clear()
# Start at the second line, fifth column (numbering from zero).
lcd.set_cursor_pos(1, 2)
lcd.print("Button Presses :")
lcd.print(0)
while True:
if button.value: # button is pushed
lcd.print(++)
time.sleep(0.05)
# Make the cursor visible as a line.
lcd.set_cursor_mode(CursorMode.LINE)
switch = DigitalInOut(board.D13) #setting the pin for switch
switch.direction = Direction.INPUT
switch.pull = Pull.UP
counter = 0 #counter starts at zero
now = True
later = True
switchValue = True
while True:
now = button.value
switchValue = switch.value
print(str(switchValue)) #print if the switch is up or down
if now == False and later == True:
if switchValue: #if switch is up count up
counter += 1 #go up by 1
if not switchValue: #if switch is down count down
counter -= 1 #go down by one
lcd.set_cursor_pos(0, 0) #where the lcd is printing
lcd.print("button presses: ")
lcd.set_cursor_pos(1, 0)
lcd.print(str(
counter)) #print the number of times the button has been pressed
lcd.print(" ") #to clear the previous number
time.sleep(0.05)
now = True
later = button.value
time.sleep(.05)
from lcd.lcd import CursorMode
switch = DigitalInOut(board.D2)
switch.direction = Direction.INPUT
switch.pull = Pull.UP
switch2 = DigitalInOut(board.D7)
switch2.direction = Direction.INPUT
switch2.pull = Pull.UP
# Talk to the LCD at I2C address 0x27.
# The number of rows and columns defaults to 4x20, so those
# arguments could be omitted in this case.
lcd = LCD(I2CPCF8574Interface(0x27), num_rows=2, num_cols=16)
presses = 0
fread = True
while True:
lcd.set_cursor_pos(0, 0)
lcd.print("SwitchState:")
if switch.value:
fread = True
else:
if fread == True:
if switch2.value:
lcd.print("Up")
lcd.print(" ")
presses += 1
fread = not fread
else:
lcd.print("Down")
lcd.print(" ")
presses -= 1
fread = not fread
lcd.set_cursor_pos(1, 0)
from lcd.lcd import LCD
from lcd.i2c_pcf8574_interface import I2CPCF8574Interface
import digitalio
import board
import time
from lcd.lcd import CursorMode
# Talk to the LCD at I2C address 0x27.
# The number of rows and columns defaults to 2x16, so those
# arguments could be omitted in this case.
lcd = LCD(I2CPCF8574Interface(0x27), num_rows=2, num_cols=16)
lcd.clear()
lcd.print("Switch State:")
lcd.set_cursor_pos(0, 0)
button_a = digitalio.DigitalInOut(board.D2)
button_a.direction = digitalio.Direction.INPUT
button_a.pull = digitalio.Pull.DOWN
counter = 0
while True:
if button_a.value:
counter += 1
lcd.set_cursor_pos(1, 4)
lcd.print(str(counter))
time.sleep(0.1)
else:
counter = counter
lcd = LCD(I2CPCF8574Interface(0x27), num_rows=2, num_cols=16)
button_a = digitalio.DigitalInOut(board.D7)
button_a.direction = digitalio.Direction.INPUT
button_a.pull = digitalio.Pull.UP
button_b = digitalio.DigitalInOut(board.D2)
button_b.direction = digitalio.Direction.INPUT
button_b.pull = digitalio.Pull.UP
count = 0
while True:
if not button_a.value:
if button_b.value:
count += 1
lcd.clear()
lcd.set_cursor_pos(0, 0)
lcd.print("ButtonState:UP")
else:
count -= 1
lcd.clear()
lcd.set_cursor_pos(0, 0)
lcd.print("ButtonState:DOWN")
lcd.set_cursor_pos(1, 0)
lcd.print("Presses:")
lcd.set_cursor_pos(1, 8)
lcd.print(str(count))
time.sleep(0.0)
# Bob Kammauff
# circuitPythonLCD
# https://github.com/jkammau97/CircuitPython
# code from https://cvilleschools.instructure.com/courses/31071/assignments/303469
from lcd.lcd import LCD
from lcd.i2c_pcf8574_interface import I2CPCF8574Interface
# some LCDs are 0x3f... some are 0x27.
lcd = LCD(I2CPCF8574Interface(0x3f), num_rows=2, num_cols=16)
lcd.print("Hello, Engineer!")
import time
import board
from digitalio import DigitalInOut, Direction, Pull
from lcd.lcd import LCD
from lcd.i2c_pcf8574_interface import I2CPCF8574Interface
from lcd.lcd import CursorMode
led = DigitalInOut(board.D13)
lcd = LCD(I2CPCF8574Interface(0x27), num_rows=2, num_cols=16)
switch = DigitalInOut(board.D2)
switch.direction = Direction.INPUT
switch.pull = Pull.UP
value = 0
lcd.set_cursor_pos(0, 1)
lcd.print("ButtonPress:")
while True:
if switch.value:
lcd.set_cursor_pos(0, 14)
else:
lcd.set_cursor_pos(0, 14)
value = value + 1
lcd.print(str(value))
time.sleep(0.3)
import board
from digitalio import DigitalInOut, Direction, Pull
button = DigitalInOut(board.D8)
button.direction = Direction.INPUT
button.pull = Pull.UP
# Talk to the LCD at I2C address 0x27.
# The number of rows and columns defaults to 4x20, so those
# arguments could be omitted in this case.S
lcd = LCD(I2CPCF8574Interface(0x3f), num_rows=2, num_cols=16)
lcd.set_cursor_pos(1,4)
lcd.print("button presses")
lcd.clear()
counter = 0
now = True
later = True
while True:
now = button.value
if now == False and later == True:
lcd.set_cursor_pos(0,0)
lcd.print("pushed")
lcd.sec_cursor_pos (1,1)
lcd.print(str(counter))
time.sleep(0.05)
counter += 1
from lcd.lcd import CursorMode
switch = DigitalInOut(board.D7)
button = DigitalInOut(board.D2)
switch.direction = Direction.INPUT
button.direction = Direction.INPUT
switch.pull = Pull.DOWN
button.pull = Pull.DOWN
presses = 0
direction = 1
lcd = LCD(I2CPCF8574Interface(0x27), num_rows=2, num_cols=16)
toggle1 = 0
while True:
lcd.set_cursor_pos(0, 0)
lcd.print("Switch: ")
lcd.set_cursor_pos(1, 0)
lcd.print("Presses:")
if switch.value and not button.value:
direction = 1
lcd.clear()
lcd.set_cursor_pos(0, 8)
lcd.print("UP")
print("UP")
if button.value and toggle1 == 0 and not switch.value:
toggle1 = 1
presses += direction
lcd.set_cursor_pos(1, 9)
lcd.print(str(presses))
lcd.print(" ")
print(str(presses))
switch.pull = Pull.UP
lcd.set_cursor_mode(CursorMode.LINE)
press = False
x = 0
while True:
print(button.value)
lcd.backlight = True
if not button.value:
if (press == False):
press = True
if not switch.value:
x = x - 1
if switch.value:
x = x + 1
print((0, ))
if button.value:
press = False
lcd.set_cursor_pos(0, 0)
lcd.print("Presses: ")
lcd.set_cursor_pos(0, 10)
lcd.print(str(x))
lcd.print(" ")
lcd.set_cursor_pos(1, 0)
lcd.print("Switch: ")
if not switch.value:
lcd.print("DOWN")
if switch.value:
lcd.print("UP ")
time.sleep(0.05)
# so that this if statement will only run once per interrupt
if pi.value and toggle:
interrupts += 1
g = 255
r = 0
toggle = False
# changing neopixel color and setting toggle to True so that the if statement ^^^
# can run again
if not pi.value:
r = 255
g = 0
toggle = True
# FUN TIME TIME
# if the time_toggle variable is True, run this statement
if time_toggle:
current_time = time.time(
) # setting current_time variable as time.time(), a variable that returns the seconds since some event
# important part - the variable increases by one every second
time_toggle = False # so that this statement only runs once per every four seconds
lcd.print("Number of")
lcd.set_cursor_pos(1, 0)
lcd.print("Interrupts: " + str(interrupts))
# will run if the current time is four less than the current time
if current_time == time.time() - 4:
time_toggle = True # so that the if statement ^^^ can run again
lcd.clear()
from lcd.i2c_pcf8574_interface import I2CPCF8574Interface
from lcd.lcd import CursorMode
import time
from digitalio import DigitalInOut, Direction, Pull
import board
button = DigitalInOut(board.D2)
button.direction = Direction.INPUT # sets the button pin for receiving input
button.pull = Pull.UP # provides power for button
presses = 0 # creates a counter for how many times the button has been pressed
lcd = LCD(I2CPCF8574Interface(0x3F), num_rows=2, num_cols=16)
lcd.set_cursor_mode(CursorMode.LINE) # Make the cursor visible as a line.
lcd.set_cursor_pos(0, 2) # Sets position of cursor.
lcd.print("Booting up!")
time.sleep(.5)
while True:
lcd.set_cursor_pos(0, 0) # Sets position of cursor.
lcd.print("Button Presses:")
if not button.value:
presses += 1 # shorter way of saying presses = presses + 1
lcd.set_cursor_pos(1, 0) # Sets position of cursor.
lcd.print(str(presses))
print(button.value) # tells me if the button is getting pressed
time.sleep(.01) # stops it from looping a zillion times a second
analog_out = AnalogOut(board.A0)
lcd = LCD(I2CPCF8574Interface(0x27), num_rows=2, num_cols=16)
button_a = digitalio.DigitalInOut(board.D1)
button_a.direction = digitalio.Direction.INPUT
button_a.pull = digitalio.Pull.DOWN
button_b = digitalio.DigitalInOut(board.D2)
button_b.direction = digitalio.Direction.INPUT
button_b.pull = digitalio.Pull.DOWN
up = 1
number = 0
while True:
lcd.set_cursor_pos(0, 0)
lcd.print("Switch State: ") #prints out "switch state on lcd screen
lcd.print(
str(up)) #prints out the number that corresponds to the variable "up"
lcd.set_cursor_pos(1, 0)
lcd.print("presses:") #prints out "presses:" below "switch state"
if button_a.value:
number += up #if button a is pressed then it adds 1 to "up"
if button_b.value:
up *= -1 #if button a is pressed then it changes what is next to switchstate, either 1 or -1
lcd.print(str(number))
lcd.print(" ")
button.direction = digitalio.Direction.INPUT #setup button
button.pull = digitalio.Pull.DOWN
switch = digitalio.DigitalInOut(board.D5)
switch.direction = digitalio.Direction.INPUT #setup switch
switch.pull = digitalio.Pull.DOWN
upDown = 1
buttonState = 0 #create variables
number = 0
while True: #loop
if not buttonState and button.value:
number += upDown #count when button is pressed
buttonState = button.value
if switch.value:
upDown = 1 #should the number go up or down?
else:
upDown = -1
lcd.set_cursor_pos(0, 0)
lcd.print("up or down: ")
if upDown == 1:
lcd.print("up ") #print things to LCD
else:
lcd.print("down")
lcd.print("number is: ")
lcd.print(str(number))
lcd.print(" ")
import time
# import math
import board
from lcd.lcd import LCD
from lcd.i2c_pcf8574_interface import I2CPCF8574Interface
from digitalio import DigitalInOut, Direction, Pull
from lcd.lcd import CursorMode
photo = DigitalInOut(board.D8)
photo.direction = Direction.INPUT
photo.pull = Pull.UP
lcd = LCD(I2CPCF8574Interface(0x3f), num_rows=2, num_cols=16)
photoState = True
oldPhoto = True
value = 0
while True:
photoState = photo.value
if photoState and not oldPhoto:
value = value + 1
lcd.set_cursor_pos(1, 0)
lcd.print(str(value))
else:
lcd.set_cursor_pos(1, 0)
lcd.print(str(value))
oldPhoto = photoState