125 lines
3.9 KiB
Python
125 lines
3.9 KiB
Python
# -*- coding:utf-8 -*-
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from luma.core.interface.serial import i2c, spi
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from luma.core.render import canvas
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from luma.core import lib
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from luma.oled.device import sh1106
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import RPi.GPIO as GPIO
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import sys
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import time
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import subprocess
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from PIL import Image
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from PIL import ImageDraw
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from PIL import ImageFont
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#GPIO define
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RST_PIN = 25
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CS_PIN = 8
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DC_PIN = 24
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JS_U_PIN = 6
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JS_D_PIN = 19
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JS_L_PIN = 5
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JS_R_PIN = 26
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JS_P_PIN = 13
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BTN1_PIN = 21
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BTN2_PIN = 20
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BTN3_PIN = 16
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# Some constants
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font = ImageFont.load_default()
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width = 128
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height = 64
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padding = -2
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top = padding
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bottom = height-padding
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xpos = 2
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# init GPIO
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GPIO.setmode(GPIO.BCM)
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GPIO.setup(JS_U_PIN, GPIO.IN, pull_up_down=GPIO.PUD_UP) # Input with pull-up
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GPIO.setup(JS_D_PIN, GPIO.IN, pull_up_down=GPIO.PUD_UP) # Input with pull-up
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GPIO.setup(JS_L_PIN, GPIO.IN, pull_up_down=GPIO.PUD_UP) # Input with pull-up
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GPIO.setup(JS_R_PIN, GPIO.IN, pull_up_down=GPIO.PUD_UP) # Input with pull-up
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GPIO.setup(JS_P_PIN, GPIO.IN, pull_up_down=GPIO.PUD_UP) # Input with pull-up
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GPIO.setup(BTN1_PIN, GPIO.IN, pull_up_down=GPIO.PUD_UP) # Input with pull-up
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GPIO.setup(BTN2_PIN, GPIO.IN, pull_up_down=GPIO.PUD_UP) # Input with pull-up
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GPIO.setup(BTN3_PIN, GPIO.IN, pull_up_down=GPIO.PUD_UP) # Input with pull-up
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# Initialize the display...
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serial = spi(device=0, port=0, bus_speed_hz = 8000000, transfer_size = 4096, gpio_DC = DC_PIN, gpio_RST = RST_PIN)
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device = sh1106(serial, rotate=2) #sh1106
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draw = ImageDraw.Draw(Image.new('1', (width, height)))
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draw.rectangle((0,0,width,height), outline=0, fill=0)
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SCREEN_SAVER = 20.0
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state = 0
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stamp = time.time()
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start = time.time()
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def draw_process(channel):
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with canvas(device) as draw:
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DTTM = subprocess.check_output("date +\"%Y-%m-%d %H:%M:%S\"", shell = True)
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ADDR = subprocess.check_output("hostname -I | cut -d\' \' -f1", shell = True )
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CPUL = subprocess.check_output("top -bn1 | awk 'NR==3{printf \"CPU : %.1f%% idle\", $8}'", shell = True )
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MEMU = subprocess.check_output("free -m | awk 'NR==2{printf \"Mem : %s/%sMB %.2f%%\", $3,$2,$3*100/$2 }'", shell = True )
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DISK = subprocess.check_output("df -h | awk '$NF==\"/\"{printf \"Disk: %d/%dGB %s\", $3,$2,$5}'", shell = True )
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TEMP = subprocess.check_output("/opt/vc/bin/vcgencmd measure_temp | awk '{gsub(/temp=/,\" \"); print}'", shell = True )
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draw.text((xpos, top), str(DTTM), font=font, fill=255)
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draw.text((xpos, top+12), "IP : " + str(ADDR), font=font, fill=255)
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draw.text((xpos, top+20), str(CPUL), font=font, fill=255)
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draw.text((xpos, top+28), str(MEMU), font=font, fill=255)
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draw.text((xpos, top+36), str(DISK), font=font, fill=255)
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draw.text((xpos, top+45), "Temp:" + str(TEMP), font=font, fill=255)
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def main_process(channel):
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global serial
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global device
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global draw
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global state
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global start
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if state == 0: # Display is off
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if channel > 0:
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state = 1
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start = time.time()
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# Initialize the display...
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serial = spi(device=0, port=0, bus_speed_hz = 8000000, transfer_size = 4096, gpio_DC = DC_PIN, gpio_RST = RST_PIN)
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device = sh1106(serial, rotate=2) #sh1106
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image = Image.new('1', (width, height))
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draw = ImageDraw.Draw(image)
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draw.rectangle((0,0,width,height), outline=0, fill=0)
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draw_process(channel)
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else:
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pass
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elif state == 1:
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if (channel > 0) or ((stamp - start) > SCREEN_SAVER): # Signal to turn off display
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GPIO.output(RST_PIN,GPIO.LOW)
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state = 0
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else:
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pass
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draw_process(channel)
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else:
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pass
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GPIO.add_event_detect(JS_P_PIN, GPIO.RISING, callback=main_process, bouncetime=200)
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GPIO.add_event_detect(BTN1_PIN, GPIO.RISING, callback=main_process, bouncetime=200)
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GPIO.add_event_detect(BTN2_PIN, GPIO.RISING, callback=main_process, bouncetime=200)
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GPIO.add_event_detect(BTN3_PIN, GPIO.RISING, callback=main_process, bouncetime=200)
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try:
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main_process(1)
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while True:
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stamp = time.time()
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main_process(0)
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time.sleep(1)
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except:
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print "Stopped", sys.exc_info()[0]
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raise
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GPIO.cleanup()
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