# 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)
lcd.print(str(value))
time.sleep(0.2)
# if button is high and last_state = low
time.sleep(0.01)
import time
import board
import digitalio
from digitalio import DigitalInOut, Direction, Pull
from lcd.lcd import LCD # import necessary LCD libraries
from lcd.i2c_pcf8574_interface import I2CPCF8574Interface
from lcd.lcd import CursorMode
lcd = LCD(I2CPCF8574Interface(0x3F), num_rows=2,
num_cols=16) # sets up LCD screen, 2 x 16
redbutton = digitalio.DigitalInOut(board.D2) #redbutton on pin D2
redbutton.direction = digitalio.Direction.INPUT # button is on output
redbutton.pull = digitalio.Pull.UP #pulling voltage direction
lcd.print("pushes ") #prints the word pushes on LCD screen
presses = 0 #variable "pushes" equals 0
lcd.set_cursor_mode(
CursorMode.LINE
) #moves the cursor down a line on LCD screen for future prints
while True:
if redbutton.value: # if the redbutton isn't pressed...
lcd.set_cursor_pos(1, 4) #setting cursor position
lcd.print("PRESSES")
else: # when the button is pressed...
lcd.set_cursor_pos(1, 4) #setting cursor position
presses += 1 # add 1 to the presses variable
lcd.print(presses) # prints number of presses
time.sleep
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
import time
import digitalio
import effects as FX
import presets
import usb_midi
import ui
import midi
import board
from log import log
from lcd.lcd import LCD
from lcd.i2c_pcf8574_interface import I2CPCF8574Interface
from lcd.lcd import CursorMode
# Setup LCD
lcd = LCD(I2CPCF8574Interface(busio.I2C(scl=board.GP3, sda=board.GP2), 0x27))
lcd.set_cursor_mode(CursorMode.HIDE)
# Setup Custom Chars
lcd.create_char(0, bytearray([0x00, 0x04, 0x08, 0x1F, 0x08, 0x04, 0x00,
0x00])) # Prev
lcd.create_char(1, bytearray([0x00, 0x04, 0x02, 0x1F, 0x02, 0x04, 0x00,
0x00])) # Next
lcd.create_char(2, bytearray([0x00, 0x0E, 0x0A, 0x0E, 0x04, 0x06, 0x06,
0x00])) # Key
log(str("Set Up Custom Characters"))
# Shutdown Function
def shutdown(wait):
time.sleep(wait)
lcd.set_backlight(False)