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buttons.py
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# Copyright (c) 2017 Adafruit Industries
# Author: James DeVito
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
import RPi.GPIO as GPIO
import time
import Adafruit_GPIO.SPI as SPI
import Adafruit_SSD1306
from PIL import Image
from PIL import ImageDraw
from PIL import ImageFont
# Input pins:
L_pin = 27
R_pin = 23
C_pin = 4
U_pin = 17
D_pin = 22
A_pin = 5
B_pin = 6
GPIO.setmode(GPIO.BCM)
GPIO.setup(A_pin, GPIO.IN, pull_up_down=GPIO.PUD_UP) # Input with pull-up
GPIO.setup(B_pin, GPIO.IN, pull_up_down=GPIO.PUD_UP) # Input with pull-up
GPIO.setup(L_pin, GPIO.IN, pull_up_down=GPIO.PUD_UP) # Input with pull-up
GPIO.setup(R_pin, GPIO.IN, pull_up_down=GPIO.PUD_UP) # Input with pull-up
GPIO.setup(U_pin, GPIO.IN, pull_up_down=GPIO.PUD_UP) # Input with pull-up
GPIO.setup(D_pin, GPIO.IN, pull_up_down=GPIO.PUD_UP) # Input with pull-up
GPIO.setup(C_pin, GPIO.IN, pull_up_down=GPIO.PUD_UP) # Input with pull-up
# Raspberry Pi pin configuration:
RST = 24
# Note the following are only used with SPI:
DC = 23
SPI_PORT = 0
SPI_DEVICE = 0
# Beaglebone Black pin configuration:
# RST = 'P9_12'
# Note the following are only used with SPI:
# DC = 'P9_15'
# SPI_PORT = 1
# SPI_DEVICE = 0
# 128x32 display with hardware I2C:
# disp = Adafruit_SSD1306.SSD1306_128_32(rst=RST)
# 128x64 display with hardware I2C:
disp = Adafruit_SSD1306.SSD1306_128_64(rst=RST)
# Note you can change the I2C address by passing an i2c_address parameter like:
# disp = Adafruit_SSD1306.SSD1306_128_64(rst=RST, i2c_address=0x3C)
# Alternatively you can specify an explicit I2C bus number, for example
# with the 128x32 display you would use:
# disp = Adafruit_SSD1306.SSD1306_128_32(rst=RST, i2c_bus=2)
# 128x32 display with hardware SPI:
# disp = Adafruit_SSD1306.SSD1306_128_32(rst=RST, dc=DC, spi=SPI.SpiDev(SPI_PORT, SPI_DEVICE, max_speed_hz=8000000))
# 128x64 display with hardware SPI:
# disp = Adafruit_SSD1306.SSD1306_128_64(rst=RST, dc=DC, spi=SPI.SpiDev(SPI_PORT, SPI_DEVICE, max_speed_hz=8000000))
# Alternatively you can specify a software SPI implementation by providing
# digital GPIO pin numbers for all the required display pins. For example
# on a Raspberry Pi with the 128x32 display you might use:
# disp = Adafruit_SSD1306.SSD1306_128_32(rst=RST, dc=DC, sclk=18, din=25, cs=22)
# Initialize library.
disp.begin()
# Clear display.
disp.clear()
disp.display()
# Create blank image for drawing.
# Make sure to create image with mode '1' for 1-bit color.
width = disp.width
height = disp.height
image = Image.new('1', (width, height))
# Get drawing object to draw on image.
draw = ImageDraw.Draw(image)
# Draw a black filled box to clear the image.
draw.rectangle((0,0,width,height), outline=0, fill=0)
try:
while 1:
if GPIO.input(U_pin): # button is released
draw.polygon([(20, 20), (30, 2), (40, 20)], outline=255, fill=0) #Up
else: # button is pressed:
draw.polygon([(20, 20), (30, 2), (40, 20)], outline=255, fill=1) #Up filled
if GPIO.input(L_pin): # button is released
draw.polygon([(0, 30), (18, 21), (18, 41)], outline=255, fill=0) #left
else: # button is pressed:
draw.polygon([(0, 30), (18, 21), (18, 41)], outline=255, fill=1) #left filled
if GPIO.input(R_pin): # button is released
draw.polygon([(60, 30), (42, 21), (42, 41)], outline=255, fill=0) #right
else: # button is pressed:
draw.polygon([(60, 30), (42, 21), (42, 41)], outline=255, fill=1) #right filled
if GPIO.input(D_pin): # button is released
draw.polygon([(30, 60), (40, 42), (20, 42)], outline=255, fill=0) #down
else: # button is pressed:
draw.polygon([(30, 60), (40, 42), (20, 42)], outline=255, fill=1) #down filled
if GPIO.input(C_pin): # button is released
draw.rectangle((20, 22,40,40), outline=255, fill=0) #center
else: # button is pressed:
draw.rectangle((20, 22,40,40), outline=255, fill=1) #center filled
if GPIO.input(A_pin): # button is released
draw.ellipse((70,40,90,60), outline=255, fill=0) #A button
else: # button is pressed:
draw.ellipse((70,40,90,60), outline=255, fill=1) #A button filled
if GPIO.input(B_pin): # button is released
draw.ellipse((100,20,120,40), outline=255, fill=0) #B button
else: # button is pressed:
draw.ellipse((100,20,120,40), outline=255, fill=1) #B button filled
if not GPIO.input(A_pin) and not GPIO.input(B_pin) and not GPIO.input(C_pin):
catImage = Image.open('happycat_oled_64.ppm').convert('1')
disp.image(catImage)
else:
# Display image.
disp.image(image)
disp.display()
time.sleep(.01)
except KeyboardInterrupt:
GPIO.cleanup()