From e19af76c703be943c51af70cd9fd3a34fcb520cd Mon Sep 17 00:00:00 2001
From: andylockran <andy@zrmt.com>
Date: Fri, 11 Dec 2015 12:45:27 +0000
Subject: [PATCH] Added heatmiser thermostat support

---
 .coveragerc                                   |   1 +
 .../components/thermostat/heatmiser.py        | 113 ++++++++++++++++++
 requirements_all.txt                          |   3 +
 3 files changed, 117 insertions(+)
 create mode 100644 homeassistant/components/thermostat/heatmiser.py

diff --git a/.coveragerc b/.coveragerc
index be4219e3163..993f8c9533b 100644
--- a/.coveragerc
+++ b/.coveragerc
@@ -112,6 +112,7 @@ omit =
     homeassistant/components/thermostat/honeywell.py
     homeassistant/components/thermostat/nest.py
     homeassistant/components/thermostat/radiotherm.py
+    homeassistant/components/thermostat/heatmiser.py
 
 
 [report]
diff --git a/homeassistant/components/thermostat/heatmiser.py b/homeassistant/components/thermostat/heatmiser.py
new file mode 100644
index 00000000000..eaeef858172
--- /dev/null
+++ b/homeassistant/components/thermostat/heatmiser.py
@@ -0,0 +1,113 @@
+"""
+homeassistant.components.thermostat.heatmiser
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+Adds support for the PRT Heatmiser themostats using the V3 protocol.
+
+See https://github.com/andylockran/heatmiserV3 for more info on the
+heatmiserV3 module dependency.
+
+For more details about this platform, please refer to the documentation at
+https://home-assistant.io/components/thermostat.heatmiser/
+"""
+import logging
+import heatmiserV3
+from homeassistant.components.thermostat import ThermostatDevice
+from homeassistant.const import TEMP_CELCIUS
+
+CONF_IPADDRESS = 'ipaddress'
+CONF_PORT = 'port'
+CONF_TSTATS = 'tstats'
+
+REQUIREMENTS = ["heatmiserV3==0.9.1"]
+
+_LOGGER = logging.getLogger(__name__)
+
+
+def setup_platform(hass, config, add_devices, discovery_info=None):
+    """ Sets up the heatmiser thermostat. """
+
+    ipaddress = str(config[CONF_IPADDRESS])
+    port = str(config[CONF_PORT])
+
+    if ipaddress is None or port is None:
+        _LOGGER.error("Missing required configuration items %s or %s",
+                      CONF_IPADDRESS, CONF_PORT)
+        return False
+
+    serport = heatmiserV3.connection.connection(ipaddress, port)
+    serport.open()
+
+    tstats = []
+    if CONF_TSTATS in config:
+        tstats = config[CONF_TSTATS]
+
+    if tstats is None:
+        _LOGGER.error("No thermostats configured.")
+        return False
+
+    for tstat in tstats:
+        add_devices([
+            HeatmiserV3Thermostat(
+                tstat.get("id"),
+                tstat.get("name"),
+                serport)
+            ])
+    return
+
+
+class HeatmiserV3Thermostat(ThermostatDevice):
+    """ Represents a HeatmiserV3 thermostat. """
+
+    def __init__(self, device, name, serport):
+        self.device = device
+        self.serport = serport
+        self._current_temperature = None
+        self._name = name
+        self._id = device
+        self.dcb = None
+        self.update()
+        self._target_temperature = int(self.dcb.get("roomset"))
+
+    @property
+    def name(self):
+        """ Returns the name of the honeywell, if any. """
+        return self._name
+
+    @property
+    def unit_of_measurement(self):
+        """ Unit of measurement this thermostat uses."""
+        return TEMP_CELCIUS
+
+    @property
+    def current_temperature(self):
+        """ Returns the current temperature. """
+        if self.dcb is not None:
+            low = self.dcb.get("floortemplow ")
+            high = self.dcb.get("floortemphigh")
+            temp = (high*256 + low)/10.0
+            self._current_temperature = temp
+        else:
+            self._current_temperature = None
+        return self._current_temperature
+
+    @property
+    def target_temperature(self):
+        """ Returns the temperature we try to reach. """
+        return self._target_temperature
+
+    def set_temperature(self, temperature):
+        """ Set new target temperature """
+        temperature = int(temperature)
+        heatmiserV3.heatmiser.hmSendAddress(
+            self._id,
+            18,
+            temperature,
+            1,
+            self.serport)
+        self._target_temperature = int(temperature)
+
+    def update(self):
+        self.dcb = heatmiserV3.heatmiser.hmReadAddress(
+            self._id,
+            'prt',
+            self.serport)
diff --git a/requirements_all.txt b/requirements_all.txt
index 15bdeb60a3c..252362c7052 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -173,3 +173,6 @@ https://github.com/persandstrom/python-verisure/archive/9873c4527f01b1ba1f72ae60
 
 # homeassistant.components.zwave
 pydispatcher==2.0.5
+
+# homeassistant.components.heatmiser
+heatmiserV3==0.9.1