Add support for sensor data

Add a check_temperature() function that'll work for both the RM2 and the A1
sensor platform, and a check_sensors() function that returns the full set of
sensor data for the A1 as a dict.

1 files changed, 56 insertions, 1 deletions

diff --git a/broadlink/__init__.py b/broadlink/__init__.py
index 2891052708a3..63ad76b38677 100755
--- a/broadlink/__init__.py
+++ b/broadlink/__init__.py
@@ -168,10 +168,65 @@ class rm2:
     packet[0] = 3
     self.send_packet(0x6a, packet) 
     
+  def check_sensors(self):
+    packet = bytearray(16)
+    packet[0] = 1
+    response = self.send_packet(0x6a, packet)
+    err = ord(response[0x22]) | (ord(response[0x23]) << 8)
+    if err == 0:
+      data = {}
+      aes = AES.new(str(self.key), AES.MODE_CBC, str(self.iv))
+      payload = aes.decrypt(str(response[0x38:]))
+      data['temperature'] = (ord(payload[0x4]) * 10 + ord(payload[0x5])) / 10.0
+      data['humidity'] = (ord(payload[0x6]) * 10 + ord(payload[0x7])) / 10.0
+      light = ord(payload[0x8])
+      if light == 0:
+        data['light'] = 'dark'
+      elif light == 1:
+        data['light'] = 'dim'
+      elif light == 2:
+        data['light'] = 'normal'
+      elif light == 3:
+        data['light'] = 'bright'
+      else:
+        data['light'] = 'unknown'
+      air_quality = ord(payload[0x0a])
+      if air_quality == 0:
+        data['air_quality'] = 'excellent'
+      elif air_quality == 1:
+        data['air_quality'] = 'good'
+      elif air_quality == 2:
+        data['air_quality'] = 'normal'
+      elif air_quality == 3:
+        data['air_quality'] = 'bad'
+      else:
+        data['air_quality'] = 'unknown'
+      noise = ord(payload[0xc])
+      if noise == 0:
+        data['noise'] = 'quiet'
+      elif noise == 1:
+        data['noise'] = 'normal'
+      elif noise == 2:
+        data['noise'] = 'noisy'
+      else:
+        data['noise'] = 'unknown'
+      return data
+
+  def check_temperature(self):
+    packet = bytearray(16)
+    packet[0] = 1
+    response = self.send_packet(0x6a, packet)
+    err = ord(response[0x22]) | (ord(response[0x23]) << 8)
+    if err == 0:
+      aes = AES.new(str(self.key), AES.MODE_CBC, str(self.iv))
+      payload = aes.decrypt(str(response[0x38:]))
+      temp = (ord(payload[0x4]) * 10 + ord(payload[0x5])) / 10.0
+      return temp
+
   def check_data(self):
     packet = bytearray(16)
     packet[0] = 4
-    response = self.send_packet(0x6a, packet) 
+    response = self.send_packet(0x6a, packet)
     err = ord(response[0x22]) | (ord(response[0x23]) << 8)
     if err == 0:
       aes = AES.new(str(self.key), AES.MODE_CBC, str(self.iv))