71 lines
2.2 KiB
Python
71 lines
2.2 KiB
Python
# SPDX-FileCopyrightText: 2024
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# SPDX-License-Identifier: MIT
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import time
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import board
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from adafruit_display_text.label import Label
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from displayio import Group
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from terminalio import FONT
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import adafruit_gps
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# import busio
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# uart = busio.UART(board.TX, board.RX, baudrate=9600, timeout=10)
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i2c = board.I2C() # uses board.SCL and board.SDA
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# i2c = board.STEMMA_I2C() # For using the built-in STEMMA QT connector
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# Create a GPS module instance.
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# gps = adafruit_gps.GPS(uart, debug=False) # Use UART
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gps = adafruit_gps.GPS_GtopI2C(i2c, debug=False) # Use I2C interface
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# Turn on the basic GGA and RMC info (what you typically want)
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gps.send_command(b"PMTK314,0,1,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0")
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# Set update rate to once a second 1hz (what you typically want)
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gps.send_command(b"PMTK220,1000")
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# Example written for boards with built-in displays
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display = board.DISPLAY
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# Create a main_group to hold anything we want to show on the display.
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main_group = Group()
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# Create a Label to show the readings. If you have a very small
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# display you may need to change to scale=1.
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display_output_label = Label(FONT, text="", scale=2)
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# Place the label near the top left corner with anchored positioning
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display_output_label.anchor_point = (0, 0)
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display_output_label.anchored_position = (4, 4)
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# Add the label to the main_group
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main_group.append(display_output_label)
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# Set the main_group as the root_group of the display
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display.root_group = main_group
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last_print = time.monotonic()
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# Begin main loop
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while True:
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gps.update()
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current = time.monotonic()
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# Update display data every second
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if current - last_print >= 1.0:
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last_print = current
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if not gps.has_fix:
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# Try again if we don't have a fix yet.
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display_output_label.text = "Waiting for fix..."
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continue
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# We have a fix! (gps.has_fix is true)
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t = gps.timestamp_utc
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# Update the label.text property to change the text on the display
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display_output_label.text = f"Timestamp (UTC): \
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\n{t.tm_mday}/{t.tm_mon}/{t.tm_year} {t.tm_hour}:{t.tm_min:02}:{t.tm_sec:02}\
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\nLat: {gps.latitude:.6f}\
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\nLong: {gps.longitude:.6f}"
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