250 lines
7.7 KiB
Python
250 lines
7.7 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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import os
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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 #Reset
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CS_PIN = 8
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DC_PIN = 24
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JS_U_PIN = 6 #Joystick Up
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JS_D_PIN = 19 #Joystick Down
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JS_L_PIN = 5 #Joystick Left
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JS_R_PIN = 26 #Joystick Right
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JS_P_PIN = 13 #Joystick Pressed
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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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SCREEN_SAVER = 20.0
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CHAR_WIDTH = 19
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font = ImageFont.load_default()
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width = 128
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height = 64
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x0 = 0
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x1 = 84
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y0 = -2
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y1 = 12
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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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state = 0 #System state: 0 - scrren is off; equal to channel number (e.g. BTN2_PIN, JS_P_PIN) otherwise
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horz = 1 #Selection choice: 0 - Right; 1 - Left
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vert = 3 #Selection choice: 1 - Top; 2 - Middle; 3 - Bottom
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stamp = time.time() #Current timestamp
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start = time.time() #Start screen saver count down
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def take_act(channel):
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global start
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global vert
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if state == BTN3_PIN:
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if vert == 1:
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if horz == 1:
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show_stt(995)
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os.system("sudo shutdown -h now")
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else:
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show_stt(996)
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os.system("sudo shutdown -r now")
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elif vert == 2:
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show_stt(997)
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os.system("sudo usb_drive.sh refresh")
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start = stamp - SCREEN_SAVER - 10
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else:
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show_stt(BTN1_PIN)
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else:
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vert = 3 # Default
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show_stt(BTN3_PIN)
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def select_h(channel):
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global start
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global horz
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if channel == JS_L_PIN:
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start = time.time()
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horz = 1
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draw_scn(state)
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elif channel == JS_R_PIN:
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start = time.time()
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horz = 0
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draw_scn(state)
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else:
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pass
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def select_v(channel):
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global start
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global vert
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if channel == JS_U_PIN:
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start = time.time()
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if vert > 1:
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vert = vert - 1
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elif channel == JS_D_PIN:
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start = time.time()
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if vert < 3:
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vert = vert + 1
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else:
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pass
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#iwgetid | awk '{print $1 " scan"}' | xargs -l sudo iwlist | grep SSID | sed 's/ESSID:"//g; s/"$//g'
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def draw_scn(channel):
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with canvas(device) as draw:
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LINE0 = subprocess.check_output("date +\"%Y-%m-%d %H:%M:%S\"", shell = True)
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LINE1 = ""
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LINE2 = ""
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LINE3 = ""
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LINE4 = ""
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if channel == BTN1_PIN:
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if horz == 1:
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ssid = subprocess.check_output("iwgetid --raw | awk '{printf \"WiFi:%s\", $0}'", shell = True)
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freq = subprocess.check_output("iwgetid --freq | awk '{gsub(/Frequency:/,\"\"); printf \" %.1f %s\", $2,$3}'", shell = True)
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LINE1 = subprocess.check_output("hostname -I | awk '{printf \"IP :%s\", $1}'", shell = True )
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LINE2 = subprocess.check_output("df -h /mnt/usb | awk '$NF==\"/mnt/usb\"{printf \"Disk:%s/%s %s\", $3,$2,$5}'", shell = True )
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LINE3 = ssid + freq
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LINE4 = subprocess.check_output("cat /sys/class/thermal/thermal_zone0/temp | awk '{printf \"Temp:%.1fC\", $1/1000}'", shell = True )
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draw.rectangle((0,61,84,63), outline=255, fill=1)
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draw.rectangle((85,61,127,63), outline=255, fill=0)
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else:
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LINE1 = subprocess.check_output("top -bn1 | awk 'NR==3{printf \"CPU:%.1f%% idle\", $8}'", shell = True )
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LINE2 = subprocess.check_output("free -mh | awk 'NR==2{printf \"Mem:%s/%s %.1f%%\", $3,$2,$3*100/$2 }'", shell = True )
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LINE3 = " in Kbps out Kbps"
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LINE4 = subprocess.check_output("ifstat -bT 0.1 1 | awk 'NR==3{printf \"%9.2f %9.2f\",$3,$4}'", shell = True)
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draw.rectangle((0,61,42,63), outline=255, fill=0)
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draw.rectangle((43,61,127,63), outline=255, fill=1)
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elif channel == BTN3_PIN:
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x2 = x1+7
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x3 = x1+14
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x4 = x1+9
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x5 = x2+9
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x6 = x3+9
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y2 = y1*vert
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LINE1 = "| Shutdown..."
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LINE2 = "| Refresh"
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LINE3 = "| Cancel"
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if vert == 1:
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if horz == 1:
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LINE1 = "> Shutdown"
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else:
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LINE1 = "> Reboot"
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elif vert == 2:
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LINE2 = "> Refresh"
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else:
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LINE3 = "> Cancel"
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if vert == 1:
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if horz == 1:
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draw.polygon([(x4,y2+6),(x5,y2-1),(x5,y2+4),(x6,y2+4),(x6,y2+8),(x5,y2+8),(x5,y2+13)], outline=255, fill=0)
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draw.polygon([(x1,y2+6),(x2,y2-1),(x2,y2+4),(x3,y2+4),(x3,y2+8),(x2,y2+8),(x2,y2+13)], outline=255, fill=1)
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else:
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draw.polygon([(x1,y2+6),(x2,y2-1),(x2,y2+4),(x3,y2+4),(x3,y2+8),(x2,y2+8),(x2,y2+13)], outline=255, fill=0)
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draw.polygon([(x4,y2+6),(x5,y2-1),(x5,y2+4),(x6,y2+4),(x6,y2+8),(x5,y2+8),(x5,y2+13)], outline=255, fill=1)
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else:
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draw.polygon([(x1,y2+6),(x2,y2-1),(x2,y2+4),(x3,y2+4),(x3,y2+8),(x2,y2+8),(x2,y2+13)], outline=255, fill=1)
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elif channel == 995:
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LINE2 = " Shutting down..."
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elif channel == 996:
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LINE2 = " Rebooting..."
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elif channel == 997:
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LINE2 = " Refreshing..."
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else:
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pass
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draw.text((x0, y0), LINE0, font=font, fill=255)
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if len(LINE1) > CHAR_WIDTH:
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draw.text((x0, y1), LINE1[:CHAR_WIDTH], font=font, fill=255)
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else:
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draw.text((x0, y1), LINE1, font=font, fill=255)
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if len(LINE2) > CHAR_WIDTH:
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draw.text((x0, y1*2), LINE2[:CHAR_WIDTH], font=font, fill=255)
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else:
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draw.text((x0, y1*2), LINE2, font=font, fill=255)
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if len(LINE3) > CHAR_WIDTH:
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draw.text((x0, y1*3), LINE3[:CHAR_WIDTH], font=font, fill=255)
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else:
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draw.text((x0, y1*3), LINE3, font=font, fill=255)
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if len(LINE4) > CHAR_WIDTH:
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draw.text((x0, y1*4), LINE4[:CHAR_WIDTH], font=font, fill=255)
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else:
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draw.text((x0, y1*4), LINE4, font=font, fill=255)
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def show_stt(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: # A button is pressed, turn on display
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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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state = channel
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start = time.time()
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draw_scn(channel)
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else:
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pass
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else: # Display is on
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if ((channel > 0) and (channel == state)) or ((stamp - start) > SCREEN_SAVER): # A button is pressed or timed out, turn off display
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GPIO.output(RST_PIN,GPIO.LOW)
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state = 0
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elif (channel > 0) and (channel != state):
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state = channel
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start = time.time()
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draw_scn(channel)
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else: # state > 0 && channel == 0 && not-yet-timeout, refresh screen
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draw_scn(state)
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GPIO.add_event_detect(BTN1_PIN, GPIO.RISING, callback=show_stt, bouncetime=200)
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GPIO.add_event_detect(BTN3_PIN, GPIO.RISING, callback=take_act, bouncetime=200)
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GPIO.add_event_detect(JS_L_PIN, GPIO.RISING, callback=select_h, bouncetime=200)
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GPIO.add_event_detect(JS_R_PIN, GPIO.RISING, callback=select_h, bouncetime=200)
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GPIO.add_event_detect(JS_U_PIN, GPIO.RISING, callback=select_v, bouncetime=200)
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GPIO.add_event_detect(JS_D_PIN, GPIO.RISING, callback=select_v, bouncetime=200)
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# Main Loop
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try:
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show_stt(BTN1_PIN)
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while True:
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stamp = time.time()
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show_stt(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() |