from machine import Pin, I2C, Timer
from ssd1306 import SSD1306_I2C
import random, time

# --- OLEd setup ------
i2c = I2C(0, scl=Pin(1), sda=Pin(0))
oled = SSD1306_I2C(128, 64, i2c)

# ------ GPS simulation function ------
def simulate_gps(timer):
    # Simulate GPS coordinates around Toronto
    lat = 43.7000 + random.uniform(-0.01, 0.01)
    lon = -79.4200 + random.uniform(-0.01, 0.01)

    # Display on OLED
    oled.fill(0)
    oled.text("GPS Tracker", 10, 0)
    oled.text("Lat: {:.5f}".format(lat), 0, 20)
    oled.text("Lon: {:.5f}".format(lon), 0, 35)
    oled.show()

    # Also print to Serial Monitor
    print("🎈 Latitude:", round(lat, 6), "longitude:", round(lon, 6))

# ---- Timer to update every 3 seconds ----
gps_timer = Timer()
gps_timer.init(period=3000, mode=Timer.PERIODIC, callback=simulate_gps)

# ----- keep program running -----
while True:
    time.sleep(1)