Added a new dummy device

git-svn-id: https://redmine.imt-atlantique.fr/svn/xaal/code/Python/trunk@1918 b32b6428-25c9-4566-ad07-03861ab6144f

devices/test/DummyDevices/temperature.py

+
+from xaal.lib import Device,Engine,tools
+
+
+import select
+import sys
+import tty
+import termios
+
+
+logger = tools.get_logger("temperature.py","WARNING")
+
+def keyboard_read():
+    if select.select([sys.stdin], [], [], 0) == ([sys.stdin], [], []):
+        data = sys.stdin.read(1) 
+        return data
+    
+def display_value(value):
+    sys.stdout.write('\r Temp : %0.1f' % value)
+    sys.stdout.flush()
+
+    
+            
+def main(addr):
+    if addr == None:
+        addr = tools.get_random_uuid()
+    dev = Device("thermometer.basic",addr)
+    dev.product_id = 'Fake Thermometer'
+    dev.url = 'http://www.acme.org'
+        
+    # attributes
+    temp = dev.new_attribute('temperature')
+    temp.value = 20.0
+
+    print("Press +/- to change the temperature, q to quit")
+    display_value(temp.value)
+    
+    def run():
+        ch = keyboard_read()
+        if ch:
+            if ch == '+': temp.value = temp.value + 0.1
+            if ch == '-': temp.value = temp.value - 0.1
+            if ch == 'q' : sys.exit(0)
+            display_value(temp.value)
+
+    eng = Engine()
+    eng.add_device(dev)
+    eng.add_timer(run,0)
+    eng.run()
+
+if __name__ == '__main__':
+    # drop blocking tty 
+    old_settings = termios.tcgetattr(sys.stdin)
+    tty.setcbreak(sys.stdin.fileno())
+    try:
+        addr = None
+        if len(sys.argv) > 1:
+            addr = sys.argv[-1]
+        main(addr)
+    except KeyboardInterrupt:
+        pass
+    termios.tcsetattr(sys.stdin, termios.TCSADRAIN, old_settings)