Initial telemetry packet report (#27)

aprslib/packets/__init__.py

@@ -1 +1,2 @@
 from aprslib.packets.position import PositionReport
+from aprslib.packets.telemetry import TelemetryReport

aprslib/packets/telemetry.py

@@ -0,0 +1,25 @@
+from aprslib.packets.base import APRSPacket
+
+class TelemetryReport(APRSPacket):
+    format = 'raw'
+    telemetry = dict(seq=0,
+                     vals=['0']*6)
+    telemetry['vals'][5] = ['1']*8  # Replace io data with list of 8 values
+    comment = ''
+
+    def _serialize_body(self):
+        # What do we do when len(digitalvalue) != 8?
+        tempio = ''.join(self.telemetry['vals'][5])
+
+        body = [
+            str(self.telemetry['seq']).zfill(3),
+            str(self.telemetry['vals'][0]).zfill(3),
+            str(self.telemetry['vals'][1]).zfill(3),
+            str(self.telemetry['vals'][2]).zfill(3),
+            str(self.telemetry['vals'][3]).zfill(3),
+            str(self.telemetry['vals'][4]).zfill(3),
+            str(tempio),
+            self.comment,
+        ]
+        # Add packet type to body joined by commas
+        return 'T#' + ",".join(body)