Initial commit

include/control.py

@@ -0,0 +1,47 @@
+#!/usr/bin/env python
+
+import socket
+
+class nec_control:
+    def __init__(self, address, id, port=7142):
+        self.__id = (id + int("40", 16)).to_bytes(1, "big")
+        self.__socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+        self.__socket.connect((address, port))
+
+    def __genmsg(self, msgbody, msglength):
+        # Header
+        message = b""
+        message += b"\x01\x30" # SOH (Start Of Header)
+        message += self.__id # Destination (Monitor ID)
+        message += b"\x30" # Source (for controller - always 0x30h (ASCII '0'))
+        message += b"\x41" # Message type
+        message += msglength # Message length in hex (example: 0x3Ah must be encoded as ASCII characters '3' and 'A')
+
+        # Message
+        message += b"\x02" # STX (Start of Message)
+        message += msgbody
+        message += b"\x03" # ETX (End of message)
+
+        # Check code
+        xor = message[1]
+        for i in range (2, len(message)):
+            xor = xor ^ message[i]
+        message += bytes([xor])
+
+        # Delimiter
+        message += b"\x0d" # CR (carriage return)
+
+        return(message)
+
+    def powerOn(self):
+        msgbody = b"\x43\x32\x30\x33\x44\x36\x30\x30\x30\x31"
+        msglength = b"0C"
+        message = self.__genmsg(msgbody, msglength)
+        self.__socket.send(message)
+
+    def powerOff(self):
+        msgbody = b"\x43\x32\x30\x33\x44\x36\x30\x30\x30\x34"
+        msglength = b"0C"
+        message = self.__genmsg(msgbody, msglength)
+        self.__socket.send(message)
+