def __init__(self, id, type, lines, columns, device, speed, color,
brightness, contrast):
print("Creating object VLUBScreen %s" % id)
self.id = id
self.lines = lines
self.columns = columns
self.__device = device
self.__speed = speed
self.__offset = 0
self.type = type
if type == "LCD2USB":
self.scr = LCD()
self.scr.info()
self.__device = "USB device"
#self.__speed = "unknown speed"
self.__speed = 0
else:
self.scr = LcdBackpack(device, speed)
self.color = color
self.brightness = brightness
self.contrast = contrast
if type != "LCD2USB":
self.scr.connect()
self.scr.display_on()
# Clear the screen
self.scr.clear()
if type != "LCD2USB":
#set the blinking cursor to off - True for this !
self.scr.set_block_cursor(True)
#set autoscrolling to off
self.scr.set_autoscroll(False)
if type == "LCD" or type == "LCD2USB":
self.scr.set_brightness(brightness)
self.scr.set_contrast(contrast)
if type == "LCD":
self.scr.set_backlight_rgb(color[0], color[1], color[2])
print("screen %d created - %dx%d on %s at %d" %
(id, columns, lines, self.__device, self.__speed))
def __init__(self):
self.lcd = LCD()
self.lcd.clear()
def main():
global lcd
global layout
global exit_flag
global errors
thread.start_new_thread(Key_Daemon, ())
RE_welcome = 0
errors = 0
lcd = LCD()
while (True):
try:
if errors == 0:
lcd = LCD()
#lcd_echo(lcd)
if (RE_welcome != 0): #re welcome
if (RE_welcome < 6):
RE_welcome = 0
if (RE_welcome > 5):
Loading()
RE_welcome = 0
if layout == 1:
main_layout() #主程序界面
sleep(0.3)
lcd.goto(19, 2)
lcd.write(' ')
elif layout == 2:
Network_layout()
sleep(0.9)
elif layout == 0:
reload_layout()
sleep(0.9)
except KeyboardInterrupt:
exit_flag = 1
sleep(1)
lcd.clear()
lcd.goto(0, 1)
lcd.write("Program End =w=")
lcd.goto(0, 2)
lcd.write(datetime.now().strftime('%m/%d %w %p %l:%M:%S'))
lcd.set_brightness(10)
lcd.close()
print('\nProgram End =w=')
break
except:
errors = 1
sleep(5)
while errors != 0:
USB = os.popen('lsusb')
A = USB.read()
#print A
if (A.find("lcd2usb") == -1):
print('NO device!')
errors = 1
else:
print('ok')
errors = 0
errors += 1
if errors:
print('ERROR: %d out of %d echo transfers failed!' %
(errors, ECHO_NUM))
exit()
else:
print('Echo test successful!')
USB = os.popen('lsusb')
A = USB.read()
if (A.find("lcd2usb") == -1):
print('NO device!')
exit()
else:
lcd = LCD()
#lcd_echo(lcd)
################---变量区---##############
briLD = 90 #亮度
conDBD = 164 #对比度
##########################################
########设置###########
lcd.set_brightness(briLD)
lcd.set_contrast(conDBD)
#######################
#lcd.clear()
exit_flag = 0
def __init__(self):
self.lcd = LCD()
class aqi_lcd:
lcd = LCD()
def __init__(self):
self.lcd = LCD()
def display_CF_iaqis(self, aqis):
self.display_aqi(PM1_0_CF, aqis[0])
sleep(2)
self.display_aqi(PM2_5_CF, aqis[1])
sleep(2)
self.display_aqi(PM10_CF, aqis[2])
sleep(2)
def display_iaqis(self, aqis):
self.display_aqi(PM1_0_ATM, aqis[3])
sleep(2)
self.display_aqi(PM2_5_ATM, aqis[4])
sleep(2)
self.display_aqi(PM10_ATM, aqis[5])
sleep(2)
def display_aqi(self, aqiType, aqi):
self.lcd.clear()
self.lcd.goto(0, 0)
#date_str = datetime.now().strftime('%b %d %H:%M:%S\n')
#print(date_str)
str_aqi = self.get_aqi_display(aqiType)
self.lcd.write(str_aqi)
self.lcd.goto(0, 1)
str_val = " " + str(aqi) + " ug/m3"
if debug: print(str_val)
self.lcd.write(str_val)
def display_us_pm2_5_aqi(self, aqi_val, category):
self.lcd.clear()
self.lcd.goto(0, 0)
#date_str = datetime.now().strftime('%b %d %H:%M:%S\n')
if debug: print(category)
self.lcd.write(category)
self.lcd.goto(0, 1)
str_val = "AQI US: " + aqi_val
if debug: print(str_val)
self.lcd.write(str_val)
sleep(5)
def display_chn_pm2_5_aqi(self, aqi_val, category):
self.lcd.clear()
self.lcd.goto(0, 0)
#date_str = datetime.now().strftime('%b %d %H:%M:%S\n')
if debug: print(category)
self.lcd.write(category)
self.lcd.goto(0, 1)
str_val = "AQI CHN: " + aqi_val
if debug: print(str_val)
self.lcd.write(str_val)
sleep(2)
def get_aqi_display(self, aqiType):
display_name = "==== AQI Monitor ===="
if debug: print(aqiType)
if aqiType == PM1_0_CF:
display_name = "PM1_0(CF=1)"
if aqiType == PM2_5_CF:
display_name = "PM2.5(CF=1)"
if aqiType == PM10_CF:
display_name = "PM10(CF=1)"
if aqiType == PM1_0_ATM:
display_name = "PM1.0(ATM)"
if aqiType == PM2_5_ATM:
display_name = "PM2.5(ATM)"
if aqiType == PM10_ATM:
display_name = "PM10(ATM) "
return display_name
def display_ip_adress(self):
#cmd = "ip addr show wlan0 | grep inet | awk '{print $2}' | cut -d/ -f1"
cmd = "ip addr show eth0 | grep inet | awk '{print $2}' | cut -d/ -f1"
self.lcd.clear()
ipaddr = self.run_cmd(cmd)
self.lcd.goto(0, 0)
self.lcd.write('IP Address :')
self.lcd.goto(0, 1)
self.lcd.write('%s' % (ipaddr))
return ipaddr
def display_all_adress(self, isWifi):
if isWifi:
cmd = "ip addr show wlan0 | grep inet | awk '{print $2}' | cut -d/ -f1"
else:
cmd = "ip addr show eth0 | grep inet | awk '{print $2}' | cut -d/ -f1"
self.lcd.clear()
ipaddr = self.run_cmd(cmd)
self.lcd.goto(0, 0)
if isWifi: self.lcd.write('wlan Address :')
else: self.lcd.write('eth Address :')
self.lcd.goto(0, 1)
self.lcd.write('%s' % (ipaddr))
return ipaddr
def run_cmd(self, cmd):
p = Popen(cmd, shell=True, stdout=PIPE)
output = p.communicate()[0]
return output
def display_cpu_info(self):
self.lcd.clear()
self.lcd.goto(0, 0) #first line
s = subprocess.check_output(["/opt/vc/bin/vcgencmd", "measure_temp"])
s = s.split('=')[1][:-3]
str_temp = "Cpu Temp=" + s + "C"
if debug: print(str_temp)
self.lcd.write(str_temp) #print CPU temp
self.lcd.goto(0, 1) # second line
str_usage = "Cpu Usage: " + str(psutil.cpu_percent(1)) + "%"
if debug: print(str_usage)
self.lcd.write(str_usage) #CPU usage
def display_mem_info(self):
phymem = psutil.virtual_memory() #phymem_usage()
buffers = getattr(psutil, 'phymem_buffers', lambda: 0)()
cached = getattr(psutil, 'cached_phymem', lambda: 0)()
used = phymem.total - (phymem.free + buffers + cached)
if debug: print(str(phymem.total))
if debug: print(str(used))
if debug: print(str(phymem.percent))
self.lcd.clear()
self.lcd.goto(0, 0)
self.lcd.write("Mem Usage: " + str(phymem.percent) + "%")
self.lcd.goto(0, 1)
self.lcd.write("Mem: " + str(int(used / 1024 / 1024)) + "M/" +
str(int(phymem.total / 1024 / 1024)) + "M")