1 files changed, 59 insertions, 0 deletions
diff --git a/external/plyer/facades/irblaster.py b/external/plyer/facades/irblaster.py
new file mode 100644
index 0000000..0e15a07
--- /dev/null
+++ b/external/plyer/facades/irblaster.py
@@ -0,0 +1,59 @@
+class IrBlaster(object):
+    '''Infrared blaster facade.'''
+
+    @staticmethod
+    def periods_to_microseconds(frequency, pattern):
+        '''Convert a pattern from period counts to microseconds.
+        '''
+        period = 1000000. / frequency
+        return [period * x for x in pattern]
+
+    @staticmethod
+    def microseconds_to_periods(frequency, pattern):
+        '''Convert a pattern from microseconds to period counts.
+        '''
+        period = 1000000. / frequency
+        return [x / period for x in pattern]
+
+    @property
+    def frequencies(self):
+        '''Property which contains a list of frequency ranges
+           supported by the device in the form:
+
+           [(from1, to1),
+            (from2, to2),
+            ...
+            (fromN, toN)]
+        '''
+        return self.get_frequencies()
+
+    def get_frequencies(self):
+        return self._get_frequencies()
+
+    def _get_frequencies(self):
+        raise NotImplementedError()
+
+    def transmit(self, frequency, pattern, mode='period'):
+        '''Transmit an IR sequence.
+
+        :parameters:
+            `frequency`: int
+                Carrier frequency for the IR transmission.
+            `pattern`: list[int]
+                Burst pair pattern to transmit.
+            `mode`: str, defaults to 'period'
+                Specifies the format of the pattern values.
+                Can be 'period' or 'microseconds'.
+        '''
+        return self._transmit(frequency, pattern, mode)
+
+    def _transmit(self, frequency, pattern, mode):
+        raise NotImplementedError()
+
+    def exists(self):
+        '''Check if the device has an infrared emitter.
+        '''
+        return self._exists()
+
+    def _exists(self):
+        raise NotImplementedError()