code.py

import board
import neopixel
from adafruit_ble.uart_server import UARTServer
from time import sleep
import adafruit_thermistor
import analogio
import math
from adafruit_bluefruit_connect.packet import Packet
from adafruit_bluefruit_connect.location_packet import LocationPacket

pixels = neopixel.NeoPixel(board.NEOPIXEL, 10)

uart_server = UARTServer()
current_long = 0
current_lat = 0

while True:
    # Advertise when not connected.
    uart_server.start_advertising()
    while not uart_server.connected:
        pass

    while uart_server.connected:
        packet = Packet.from_stream(uart_server)
        if isinstance(packet, LocationPacket):
            #print(packet.longitude, packet.latitude)
            delta_long = current_long - packet.longitude
            delta_lat = current_lat - packet.latitude
            distance = math.sqrt((delta_long * delta_long) + (delta_lat  * delta_lat))
            #print(distance)
            current_long = packet.longitude
            current_lat = packet.latitude
            speed = distance * 100000
            print(speed)
            pixels.fill((0,0,0))
            for i in range(0,min(speed,9)):
                pixels[i] = (100,0,0)
                print(i)
            pixels.show