Create esp32_gps_receive.py

esp32/esp32_gps_receive.py

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+
+#Receives GPS data over the ESP32 UART 
+#and prints main GPS information: date, time, latitute, longitude
+
+from machine import UART
+
+from mini_micropyGPS import MicropyGPS
+
+uart = UART(2, tx=17, rx=16)
+uart.init(38400, bits=8, parity=None, stop=1)
+
+# Instatntiate the micropyGPS object
+my_gps = MicropyGPS()
+
+# Continuous Tests for characters available in the UART buffer, any characters are feed into the GPS
+# object. When enough char are feed to represent a whole, valid sentence, stat is set as the name of the
+# sentence and printed
+while True:
+    if uart.any():
+        c=int.from_bytes(uart.read(1), "big")
+        stat = my_gps.update(chr(c)) # Note the conversion to to chr, UART outputs ints normally
+        if stat:
+            print(stat)
+            stat = None
+            print('UTC Timestamp:', my_gps.timestamp)
+            print('Date:', my_gps.date_string('long'))
+            print('Latitude:', my_gps.latitude_string())
+            print('Longitude:', my_gps.longitude_string())
+            print('Horizontal Dilution of Precision:', my_gps.hdop)
+            print()
+            new_data = False  # Clear the flag