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Matthew Garrett
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The MIT License (MIT)
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Copyright (c) 2014 Mike Ryan
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Copyright (c) 2016 Matthew Garrett
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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Python control for Broadlink RM2 IR controllers
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===============================================
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A simple Python API for controlling IR controllers from [Broadlink](http://www.ibroadlink.com/rm/). At present, only RM Pro (referred to as RM2 in the codebase) devices are supported and only one device per network will be used. There is currently no support for the cloud API.
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Example use
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-----------
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Discover an available device on the local network:
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```
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import broadlink
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device = broadlink.rm2()
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device.discover()
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```
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Obtain the authentication key required for further communication:
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```
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device.auth()
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```
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Enter learning mode:
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```
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device.enter_learning()
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```
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Obtain an IR packet while in learning mode:
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```
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ir_packet = device.check_data()
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```
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(This will return None if the device does not have a packet to return)
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Send an IR packet:
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```
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device.send_data(ir_packet)
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```
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#!/usr/bin/python
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from datetime import datetime
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from socket import *
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from Crypto.Cipher import AES
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import time
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import random
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class rm2:
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def __init__(self):
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self.count = random.randrange(0xffff)
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self.key = bytearray([0x09, 0x76, 0x28, 0x34, 0x3f, 0xe9, 0x9e, 0x23, 0x76, 0x5c, 0x15, 0x13, 0xac, 0xcf, 0x8b, 0x02])
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self.iv = bytearray([0x56, 0x2e, 0x17, 0x99, 0x6d, 0x09, 0x3d, 0x28, 0xdd, 0xb3, 0xba, 0x69, 0x5a, 0x2e, 0x6f, 0x58])
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s = socket(AF_INET, SOCK_DGRAM)
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s.connect(('8.8.8.8', 0)) # connecting to a UDP address doesn't send packets
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local_ip_address = s.getsockname()[0]
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self.address = local_ip_address.split('.')
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self.id = bytearray([0, 0, 0, 0])
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def discover(self):
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self.cs = socket(AF_INET, SOCK_DGRAM)
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self.cs.setsockopt(SOL_SOCKET, SO_REUSEADDR, 1)
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self.cs.setsockopt(SOL_SOCKET, SO_BROADCAST, 1)
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self.cs.bind(('',0))
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self.port = self.cs.getsockname()[1]
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packet = bytearray(0x30)
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year = datetime.now().year
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packet[0x08] = 0xf9
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packet[0x09] = 0xff
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packet[0x0a] = 0xff
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packet[0x0b] = 0xff
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packet[0x0c] = year & 0xff
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packet[0x0d] = year >> 8
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packet[0x0e] = datetime.now().minute
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packet[0x0f] = datetime.now().hour
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subyear = str(year)[2:]
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packet[0x10] = int(subyear)
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packet[0x11] = datetime.now().isoweekday()
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packet[0x12] = datetime.now().day
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packet[0x13] = datetime.now().month
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packet[0x18] = int(self.address[0])
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packet[0x19] = int(self.address[1])
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packet[0x1a] = int(self.address[2])
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packet[0x1b] = int(self.address[3])
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packet[0x1c] = self.port & 0xff
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packet[0x1d] = self.port >> 8
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packet[0x26] = 6
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checksum = 0xbeaf
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for i in range(len(packet)):
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checksum += packet[i]
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checksum = checksum & 0xffff
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packet[0x20] = checksum & 0xff
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packet[0x21] = checksum >> 8
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self.cs.sendto(packet, ('255.255.255.255', 80))
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response = self.cs.recvfrom(1024)
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responsepacket = bytearray(response[0])
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self.host = response[1]
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self.mac = responsepacket[0x3a:0x40]
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def auth(self):
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payload = bytearray(0x50)
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payload[0x04] = 0x31
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payload[0x05] = 0x31
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payload[0x06] = 0x31
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payload[0x07] = 0x31
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payload[0x08] = 0x31
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payload[0x09] = 0x31
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payload[0x0a] = 0x31
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payload[0x0b] = 0x31
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payload[0x0c] = 0x31
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payload[0x0d] = 0x31
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payload[0x0e] = 0x31
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payload[0x0f] = 0x31
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payload[0x10] = 0x31
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payload[0x11] = 0x31
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payload[0x12] = 0x31
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payload[0x1e] = 0x01
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payload[0x2d] = 0x01
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payload[0x30] = 'T'
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payload[0x31] = 'e'
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payload[0x32] = 's'
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payload[0x33] = 't'
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payload[0x34] = ' '
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payload[0x35] = ' '
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payload[0x36] = '1'
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response = self.send_packet(0x65, payload)
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enc_payload = response[0x38:]
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aes = AES.new(str(self.key), AES.MODE_CBC, str(self.iv))
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payload = aes.decrypt(str(response[0x38:]))
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self.id = payload[0x00:0x04]
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self.key = payload[0x04:0x14]
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def send_packet(self, command, payload):
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packet = bytearray(0x38)
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packet[0x00] = 0x5a
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packet[0x01] = 0xa5
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packet[0x02] = 0xaa
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packet[0x03] = 0x55
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packet[0x04] = 0x5a
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packet[0x05] = 0xa5
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packet[0x06] = 0xaa
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packet[0x07] = 0x55
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packet[0x24] = 0x2a
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packet[0x25] = 0x27
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packet[0x26] = command
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packet[0x28] = self.count & 0xff
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packet[0x29] = self.count >> 8
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packet[0x2a] = self.mac[0]
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packet[0x2b] = self.mac[1]
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packet[0x2c] = self.mac[2]
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packet[0x2d] = self.mac[3]
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packet[0x2e] = self.mac[4]
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packet[0x2f] = self.mac[5]
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packet[0x30] = self.id[0]
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packet[0x31] = self.id[1]
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packet[0x32] = self.id[2]
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packet[0x33] = self.id[3]
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checksum = 0xbeaf
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for i in range(len(payload)):
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checksum += payload[i]
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checksum = checksum & 0xffff
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aes = AES.new(str(self.key), AES.MODE_CBC, str(self.iv))
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payload = aes.encrypt(str(payload))
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packet[0x34] = checksum & 0xff
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packet[0x35] = checksum >> 8
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for i in range(len(payload)):
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packet.append(payload[i])
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checksum = 0xbeaf
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for i in range(len(packet)):
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checksum += packet[i]
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checksum = checksum & 0xffff
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packet[0x20] = checksum & 0xff
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packet[0x21] = checksum >> 8
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self.cs.sendto(packet, self.host)
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response = self.cs.recvfrom(1024)
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return response[0]
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def send_data(self, data):
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packet = bytearray([0x02, 0x00, 0x00, 0x00])
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packet += data
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self.send_packet(0x6a, packet)
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def enter_learning(self):
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packet = bytearray(16)
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packet[0] = 3
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self.send_packet(0x6a, packet)
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def check_data(self):
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packet = bytearray(16)
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packet[0] = 4
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response = self.send_packet(0x6a, packet)
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err = ord(response[0x22]) | (ord(response[0x23]) << 8)
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if err == 0:
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aes = AES.new(str(self.key), AES.MODE_CBC, str(self.iv))
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payload = aes.decrypt(str(response[0x38:]))
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return payload[0x04:]
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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import re
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from setuptools import setup, find_packages
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import sys
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import warnings
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dynamic_requires = []
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version = 0.1
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setup(
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name='broadlink',
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version=0.1,
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author='Matthew Garrett',
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author_email='mjg59@srcf.ucam.org',
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url='http://github.com/mjg59/python-broadlink',
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packages=find_packages(),
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scripts=[],
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license=open('LICENSE').read(),
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description='Python API for controlling Broadlink IR controllers',
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classifiers=[
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'Development Status :: 4 - Beta',
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'Intended Audience :: Developers',
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'License :: OSI Approved :: MIT License',
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'Operating System :: OS Independent',
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'Programming Language :: Python',
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],
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include_package_data=True,
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zip_safe=False,
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)
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