added nmea msg parsing

nmea/GSA.py

@@ -0,0 +1,36 @@
+from msg_container import MsgContainer
+from nmea.receiver import Nmea
+
+
+class Gsa(Nmea):
+	class Msg:
+		def __init__(self):
+			self.mode = None
+			self.fix_type = None
+			self.sat_id = None
+			self.p_dop = None
+			self.h_dop = None
+			self.v_dop = None
+			self.checksum = None
+
+		def __repr__(self):
+			return f"mode: {self.mode}, fix_type: {self.mode}, sat_id: {self.sat_id}, p-dop: {self.p_dop:.3f}, h-dop: {self.h_dop:.3f}, v-dop: {self.v_dop:.3f}"
+
+	def __init__(self, name: str, tid: str):
+		Nmea.__init__(self, name, tid=tid, msg_type="GSA")
+		self.msg = None
+		self.data = Gsa.Msg()
+
+	def on_recv(self, msg: MsgContainer):
+		data = msg.data.decode(encoding="utf-8")
+		data_list = data.split(',')
+		self.msg = data_list[0]
+		self.data.mode = data_list[1]
+		self.data.fix_type = data_list[2]
+		self.data.sat_id = data_list[3:15]
+		self.data.p_dop = float(data_list[15])
+		self.data.h_dop = float(data_list[16])
+		self.data.v_dop = float(data_list[17])
+		self.data.checksum = data_list[18]
+
+		print(self.data)