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code.py
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# SDX-FileCopyrightText: 2021 ladyada for Adafruit Industries
# SPDX-License-Identifier: MIT
# Simple GPS module demonstration.
# Will wait for a fix and print a message every second with the current location
# and other details.
import time
import board
import busio
import adafruit_gps
from adafruit_ble import BLERadio
from adafruit_ble.advertising.standard import ProvideServicesAdvertisement
from adafruit_ble.services.nordic import UARTService
ble = BLERadio()
ble.name = "Aerotrace6"
uart1 = UARTService()
advertisement = ProvideServicesAdvertisement(uart1)
connectonce = 0
# Create a serial connection for the GPS connection using default speed and\
# a slightly higher timeout (GPS modules typically update once a second).
# These are the defaults you should use for the GPS FeatherWing.
# For other boards set RX = GPS module TX, and TX = GPS module RX pins.
uart = busio.UART(board.D2, board.D1, baudrate=9600, timeout=10)
# for a computer, use the pyserial library for uart access
# import serial
# uart = serial.Serial("/dev/ttyUSB0", baudrate=9600, timeout=10)
# If using I2C, we'll create an I2C interface to talk to using default pins
# i2c = board.I2C() # uses board.SCL and board.SDA
# i2c = board.STEMMA_I2C() # For using the built-in
# Create a GPS module instance.
gps = adafruit_gps.GPS(uart, debug=False) # Use UART/pyserial
# gps = adafruit_gps.GPS_GtopI2C(i2c, debug=False) # Use I2C interface
disconnected_BLE = False
# this flag is used to indicate when the BLE disconnects.
# def dilutionGrader():
# if gps.horizontal_dilution < 1:
# return "Dilution Grade: Ideal"
# elif gps.horizontal_dilution < 2:
# return "Dilution Grade: Excellent"
# elif gps.horizontal_dilution < 5:
# return "Dilution Grade: Good"
# elif gps.horizontal_dilution < 10:
# return "Dilution Grade: Moderate"
# elif gps.horizontal_dilution < 20:
# return "Dilution Grade: Fair"
# else:
# return "Dilution Grade: Poor"
# Initialize the GPS module by changing what data it sends and at what rate.
# These are NMEA extensions for PMTK_314_SET_NMEA_OUTPUT and
# PMTK_220_SET_NMEA_UPDATERATE but you can send anything from here to adjust
# the GPS module behavior:
# https://cdn-shop.adafruit.com/datasheets/PMTK_A11.pdf
# Turn on the basic GGA and RMC info (what you typically want)
gps.send_command(b"PMTK314,0,1,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0")
# Turn on just minimum info (RMC only, location):
# gps.send_command(b'PMTK314,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0')
# Turn off everything:
# gps.send_command(b'PMTK314,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0')
# Turn on everything (not all of it is parsed!)
# gps.send_command(b'PMTK314,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0')
# Set update rate to once a second (1hz) which is what you typically want.
# gps.send_command(b"PMTK220,1000")
# Or decrease to once every two seconds by doubling the millisecond value.
# Be sure to also increase your UART timeout above!
# gps.send_command(b'PMTK220,2000')
# You can also speed up the rate, but don't go too fast or else you can lose
# data during parsing. This would be twice a second (2hz, 500ms delay):
# gps.send_command(b"PMTK220,500")
# data during parsing. This would be twice a second (8hz, 125ms delay):
# gps.send_command(b"PMTK220,125")
# data during parsing. This would be twice a second (10hz, 100ms delay):
# 10 Hz is the maximum frequency... need to stress test for later -
# gps.send_command(b"PMTK220,100")
# data during parsing. This would be twice a second (4hz, 250ms delay):
# here is the frequency, do not let it go over 10!!
frequency_hertz = 8
frequency_conversion = int(1 / frequency_hertz * 1000) # AKA miliseconds
gps_send_command = "PMTK220," + str(frequency_conversion)
# print(gps_send_command)
# gps.send_command(b"PMTK220,250")
# experimental gps.senc_command
gps.send_command(bytes(gps_send_command, "ascii"))
# Main loop runs forever printing the location, etc. every second.
last_print = time.monotonic()
count = 0
# array of data when discconected
disconnected_data = []
disconnected_counter = 0
advertise_counter = 0
save_once = 0
while True:
last_time = 0
# Every second print out current location details if there's a fix.
current = time.monotonic()
if current - last_print >= (frequency_conversion / 1000):
last_print = current
# if not gps.has_fix:
# # Try again if we don't have a fix yet.
# count = count + 1
# if count == frequency_hertz:
# count = 0
# print(f"Waiting for fix... {time.time()} {count}")
# continue
# We have a fix! (gps.has_fix is true)
# Print out details about the fix like location, date, etc.
if advertise_counter == 0:
ble.start_advertising(advertisement)
print("Advertising...")
advertise_counter = 1
while not ble.connected and not disconnected_BLE:
# print("Got to here")
pass
if not ble.connected and disconnected_BLE and save_once == 0:
print("got to here")
while disconnected_counter <= 10 * frequency_hertz:
print(f"Iteration: {disconnected_counter}/{10 * frequency_hertz}")
disconnected_counter = disconnected_counter + 1
"""disconnected_data.append(
"{}/{}/{} {:02}:{:02}:{:02}\n".format(
gps.timestamp_utc.tm_mon, # Grab parts of the time from the
gps.timestamp_utc.tm_mday, # struct_time object that holds
gps.timestamp_utc.tm_year, # the fix time. Note you might
gps.timestamp_utc.tm_hour - 6, # Central Time zone
gps.timestamp_utc.tm_min, # month!
gps.timestamp_utc.tm_sec,
# gps.timestamp_utc[6]
# cannot find way to scape ms.
# Need to identify timestamp init code.
)
)"""
# 2. Latitute
if gps.latitude is not None:
disconnected_data.append("LA:{0:.9f}\n".format(gps.latitude))
else:
disconnected_data.append("LA:NoLat\n")
# 3. Longitude
if gps.longitude is not None:
disconnected_data.append("LO:{0:.9f}\n".format(gps.longitude))
else:
disconnected_data.append("LO:NoLong\n")
# 4. # of sattelites
"""if gps.satellites is not None:
disconnected_data.append("SA:{}\n".format(gps.satellites))
else:
disconnected_data.append("SA:NoSat\n")"""
# 5. Altitude in Feet
if gps.altitude_m is not None:
disconnected_data.append("AL:{}\n".format(gps.altitude_m * 3.28084))
else:
disconnected_data.append("AL:NoAlt\n")
# 6. Speed miles/hour
if gps.speed_knots is not None:
disconnected_data.append(
"SP:{}\n".format(gps.speed_knots * 1.15078)
)
else:
disconnected_data.append("SP:NoSpeed\n")
# 7. Track angle degrees
if gps.track_angle_deg is not None:
disconnected_data.append("TA:{}\n".format(gps.track_angle_deg))
else:
disconnected_data.append("TA:NoTrac\n")
# 8. Horizontal dilution
"""if gps.horizontal_dilution is not None:
disconnected_data.append("{}\n".format(gps.horizontal_dilution))
else:
disconnected_data.append("NoDil\n")"""
time.sleep(frequency_conversion / 1000)
print("Finished downloading data")
save_once = 1
advertise_counter = 0
disconnected_counter = 0
if ble.connected and disconnected_BLE:
print("Uploading Lost Data")
asdfg = 0 # counters
time.sleep(2)
for data in disconnected_data:
try:
asdfg = asdfg + 1
print(asdfg)
uart1.write(data)
print(data)
time.sleep(0.05)
except Exception:
pass
disconnected_BLE = False
disconnected_data = []
save_once = 0
# SSENDSENDSNED SEND SEND SEND
# while ble.connected:
while ble.connected:
if connectonce == 0:
print("connected")
connectonce = 1
# Make sure to call gps.update() every loop iteration and at least twice
# as fast as data comes from the GPS unit (usually every second).
# This returns a bool that's true if it parsed new data (you can ignore it
# though if you don't care and instead look at the has_fix property).
gps.update()
while not gps.has_fix:
gps.update()
# Try again if we don't have a fix yet.
count = count + 1
if count == frequency_hertz:
count = 0
uart1.write(f"Waiting for fix... {count}")
print(f"Waiting for fix... {count}")
time.sleep(frequency_conversion / 1000)
try:
# uart1.write("========================================")
# Print a separator line.
# 1. TIMESTAMP {}/{}/{} {:02}:{:02}:{:02}
"""uart1.write(
"{}/{}/{} {:02}:{:02}:{:02}".format(
gps.timestamp_utc.tm_mon, # Grab parts of the time from the
gps.timestamp_utc.tm_mday, # struct_time object that holds
gps.timestamp_utc.tm_year, # the fix time. Note you might
gps.timestamp_utc.tm_hour - 6, # Central Time zone
gps.timestamp_utc.tm_min, # month!
gps.timestamp_utc.tm_sec,
# gps.timestamp_utc[6]
# cannot find way to scape ms.
# Need to identify timestamp init code.
)
)"""
# 2. Latitute
if gps.latitude is not None:
uart1.write(f"LA:{gps.latitude:.9f}")
print(f"LA:{gps.latitude:.9f}")
# print(f"BleStatus: {ble.connected}")
if ble.connected is False:
print("Breaking!")
disconnected_BLE = True
advertise_counter = 1
break
else:
uart1.write("LA:NoLat")
print("LA:NoLat")
# print(f"BleStatus: {ble.connected}")
if ble.connected is False:
print("Breaking!")
disconnected_BLE = True
advertise_counter = 1
break
# 3. Longitude
if gps.longitude is not None:
uart1.write(f"LO:{gps.longitude:.9f}")
print(f"LO:{gps.longitude:.9f}")
# print(f"BleStatus: {ble.connected}")
if ble.connected is False:
print("Breaking!")
disconnected_BLE = True
advertise_counter = 1
break
else:
uart1.write("LO:NoLong")
print("LO:Nolong")
# print(f"BleStatus: {ble.connected}")
if ble.connected is False:
print("Breaking!")
disconnected_BLE = True
advertise_counter = 1
break
# 4. # of sattelites
"""if gps.satellites is not None:
uart1.write("{}".format(gps.satellites))
else:
uart1.write("NoSat")"""
# 5. Altitude in Feet
if gps.altitude_m is not None:
uart1.write(f"AL:{gps.altitude_m * 3.28084}")
print(f"AL:{gps.altitude_m * 3.28084}")
# print(f"BleStatus: {ble.connected}")
if ble.connected is False:
print("Breaking!")
disconnected_BLE = True
advertise_counter = 1
break
else:
uart1.write("AL:NoAlt")
print("AL:NoAlt")
# print(f"BleStatus: {ble.connected}")
if ble.connected is False:
print("Breaking!")
disconnected_BLE = True
advertise_counter = 1
break
# 6. Speed miles/hour
if gps.speed_knots is not None:
uart1.write(f"SP:{gps.speed_knots * 1.15078}")
print(f"SP:{gps.speed_knots * 1.15078}")
# print(f"BleStatus: {ble.connected}")
if ble.connected is False:
print("Breaking!")
disconnected_BLE = True
advertise_counter = 1
break
else:
uart1.write("SP:NoSpeed")
print("SP:NoSpeed")
# print(f"BleStatus: {ble.connected}")
if ble.connected is False:
print("Breaking!")
disconnected_BLE = True
advertise_counter = 1
break
# 7. Track angle degrees
if gps.track_angle_deg is not None:
uart1.write(f"TA:{gps.track_angle_deg}")
print(f"TA:{gps.track_angle_deg}")
# print(f"BleStatus: {ble.connected}")
if ble.connected is False:
print("Breaking!")
disconnected_BLE = True
advertise_counter = 1
break
else:
uart1.write("TA:NoTrac")
print("TA:NoTrac")
# print(f"BleStatus: {ble.connected}")
if ble.connected is False:
print("Breaking!")
disconnected_BLE = True
advertise_counter = 1
break
# 8. Horizontal dilution
"""if gps.horizontal_dilution is not None:
uart1.write("{}\n".format(gps.horizontal_dilution))
else:
uart1.write("NoDil")"""
except Exception:
disconnected_BLE = True
# print(f"BleStatus: {ble.connected}")
print("Disconnected")
advertise_counter = 1
if disconnected_counter <= disconnected_counter * 10:
"""disconnected_data.append(
"========================================\n"
)"""
# Print a separator line.
# 1. TIMESTAMP {}/{}/{} {:02}:{:02}:{:02}
"""disconnected_data.append(
"{}/{}/{} {:02}:{:02}:{:02}\n".format(
gps.timestamp_utc.tm_mon, # Grab parts of the time from the
gps.timestamp_utc.tm_mday, # struct_time object that holds
gps.timestamp_utc.tm_year, # the fix time. Note you might
gps.timestamp_utc.tm_hour - 6, # Central Time zone
gps.timestamp_utc.tm_min, # month!
gps.timestamp_utc.tm_sec,
# gps.timestamp_utc[6]
# cannot find way to scape ms.
# Need to identify timestamp init code.
)
)"""
# 2. Latitute
if gps.latitude is not None:
disconnected_data.append("LA:{0:.9f}\n".format(gps.latitude))
else:
disconnected_data.append("LA:NoLat\n")
# 3. Longitude
if gps.longitude is not None:
disconnected_data.append("LO:{0:.9f}\n".format(gps.longitude))
else:
disconnected_data.append("LO:NoLong\n")
# 4. # of sattelites
"""if gps.satellites is not None:
disconnected_data.append("{}\n".format(gps.satellites))
else:
disconnected_data.append("NoSat\n")"""
# 5. Altitude in Feet
if gps.altitude_m is not None:
disconnected_data.append(
"AL:{}\n".format(gps.altitude_m * 3.28084)
)
else:
disconnected_data.append("AL:NoAlt\n")
# 6. Speed miles/hour
if gps.speed_knots is not None:
disconnected_data.append(
"SP:{}\n".format(gps.speed_knots * 1.15078)
)
else:
disconnected_data.append("SP:NoSpeed\n")
# 7. Track angle degrees
if gps.track_angle_deg is not None:
disconnected_data.append("TA:{}\n".format(gps.track_angle_deg))
else:
disconnected_data.append("TA:NoTrac\n")
# 8. Horizontal dilution
"""if gps.horizontal_dilution is not None:
disconnected_data.append("{}\n".format(gps.horizontal_dilution))
else:
disconnected_data.append("NoDil\n")"""