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[rb-clock.git] / python / lcd-test.py

diff --git a/python/lcd-test.py b/python/lcd-test.py
new file mode 100644 (file)
index 0000000..9dcad18
--- /dev/null
+++ b/python/lcd-test.py
@@ -0,0 +1,45 @@
+import RPi.GPIO as GPIO
+from RPLCD.gpio import CharLCD
+import socket
+import fcntl
+import struct
+import time
+from signal import signal, SIGINT
+from sys import exit
+
+lcd = CharLCD(cols=20, rows=2, pin_rs=37, pin_e=35, pins_data=[33, 31, 29, 23], numbering_mode=GPIO.BOARD)
+lcd.clear()
+
+def handler(signal_received, frame):
+  lcd.close()
+  print('SIGINT or CTRL-C detected. Exiting gracefully')
+  exit(0)
+
+def get_ip_address(ifname):
+  s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
+  return socket.inet_ntoa(fcntl.ioctl(
+    s.fileno(),
+    0x8915, 
+    struct.pack('256s', ifname[:15])
+  )[20:24])
+
+if __name__ == '__main__':
+  signal(SIGINT, handler)
+  while True:
+    for i in range(0,6):
+      lcd.clear()
+      lcd.write_string("Time: %s" %time.strftime("%H:%M:%S"))
+      lcd.cursor_pos = (1, 0)
+      lcd.write_string("Date: %s" %time.strftime("%m/%d/%Y"))
+      time.sleep(1)
+    lcd.clear()
+    lcd.write_string("IP Address:") 
+    lcd.cursor_pos = (1, 0)
+    lcd.write_string(get_ip_address('eth0'))
+    time.sleep(5)
+
+#lcd.clear()
+#lcd.write_string(u'Hello world!')
+#lcd.crlf()
+#lcd.write_string(u'Hello world!')
+lcd.close()