init

playbooks/files/scripts/lcd_control_restart.py

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+# Import LCD library
+from RPLCD import i2c
+
+import subprocess
+import sys
+import os
+pid = os.getpid()
+
+
+cmnd = "ps -ef|grep lcd_control|grep -v grep |grep -v {}|wc -l".format(pid)
+status, output = subprocess.getstatusoutput(cmnd)
+
+print(output)
+if int(output) > 0:
+    print("Running already!")
+    #sys.exit()
+# constants to initialise the LCD
+lcdmode = 'i2c'
+cols = 20
+rows = 4
+charmap = 'A00'
+i2c_expander = 'PCF8574'
+
+# Generally 27 is the address;Find yours using: i2cdetect -y 1 
+address = 0x27 
+port = 0 # 0 on an older Raspberry Pi
+
+# Initialise the LCD
+lcd = i2c.CharLCD(i2c_expander, address, port=port, charmap=charmap,
+                  cols=cols, rows=rows)
+line1 = f'{"####": <20}'
+line2 = f'{"Restarting.....": <20}'
+line3 = f'{"####": <20}'
+line4 = f'{"####": <20}'
+lcd.backlight_enabled =  True
+lcd.cursor_pos = (0, 0)
+lcd.write_string(line1)
+lcd.crlf()
+lcd.write_string(line2)
+lcd.crlf()
+lcd.write_string(line3)
+lcd.crlf()
+lcd.write_string(line4)