Initial work on display

lib/max31856.py

@@ -119,7 +119,7 @@ class MAX31856(object):
         # Handle hardware SPI
         if hardware_spi is not None:
             self._logger.debug('Using hardware SPI')
-            self._spi = hardware_spi
+            self._spi = SPI.SpiDev(hardware_spi['port'], hardware_spi['device'])
         elif software_spi is not None:
             self._logger.debug('Using software SPI')
             # Default to platform GPIO if not provided.

lib/oven.py

@@ -133,12 +133,22 @@ class TempSensorReal(TempSensor):
         if config.max31856:
             log.info("init MAX31856")
             from max31856 import MAX31856
-            software_spi = { 'cs': config.gpio_sensor_cs,
-                             'clk': config.gpio_sensor_clock,
-                             'do': config.gpio_sensor_data,
-                             'di': config.gpio_sensor_di }
+            if config.gpio_spi:
+                log.info("using software SPI")
+                software_spi = {'cs': config.gpio_sensor_cs,
+                                'clk': config.gpio_sensor_clock,
+                                'do': config.gpio_sensor_data,
+                                'di': config.gpio_sensor_di }
+                hardware_spi = None
+            else:
+                log.info("using hardware SPI")
+                software_spi = None
+                hardware_spi = {'port': config.spi_port, 
+                                'device': config.spi_device}
+
             self.thermocouple = MAX31856(tc_type=config.thermocouple_type,
                                          software_spi = software_spi,
+                                         hardware_spi = hardware_spi,
                                          units = config.temp_scale,
                                          ac_freq_50hz = config.ac_freq_50hz,
                                          )

lib/ovenDisplay.py

@@ -0,0 +1,35 @@
+import threading,logging,json,time,datetime
+from oven import Oven
+log = logging.getLogger(__name__)
+
+class OvenDisplay(threading.Thread):
+    def __init__(self,oven,ovenWatcher):
+        self.last_profile = None
+        self.last_log = []
+        self.started = None
+        self.recording = False
+        self.observers = []
+        threading.Thread.__init__(self)
+        self.daemon = True
+        self.oven = oven
+        self.ovenWatcher = ovenWatcher
+        ovenWatcher.add_observer(self)
+        # TODO - move to config
+        self.sleep_time = 0.1
+        self.start()
+
+    def run(self):
+        while True:
+            #oven_state = self.oven.get_state()
+            #update_display(oven_state)    
+            time.sleep(self.sleep_time)
+
+    def update_display(self, oven_state):
+        log.info(oven_state)
+
+    def send(self,oven_state):
+        self.update_display(oven_state)
+
+
+
+