SlothFi/main.py at main · CompactAIOfficial/SlothFi · GitHub

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# main.py — Connect to WiFi and run the USB Ethernet bridge
import network
import machine
import time
import gc
import config
from netstack import Bridge

from ecm_interface import ECMInterface

ecm = ECMInterface._instance


def connect_wifi():
    wlan = network.WLAN(network.STA_IF)
    wlan.active(True)
    if not wlan.isconnected():
        print("[wifi] Connecting to", config.WIFI_SSID)
        wlan.connect(config.WIFI_SSID, config.WIFI_PASS)
        for _ in range(30):
            if wlan.isconnected():
                break
            time.sleep(1)
    if wlan.isconnected():
        ip_info = wlan.ifconfig()
        print("[wifi] Connected:", ip_info[0])
        return wlan, ip_info
    else:
        print("[wifi] Failed to connect")
        return wlan, None


def main():
    led = None
    try:
        led = machine.Pin("LED", machine.Pin.OUT)
    except Exception:
        pass

    if led:
        led.on()

    wlan, ip_info = connect_wifi()
    if not ip_info:
        while not wlan.isconnected():
            if led:
                led.toggle()
            time.sleep(2)
            wlan.connect(config.WIFI_SSID, config.WIFI_PASS)
            for _ in range(15):
                if wlan.isconnected():
                    break
                time.sleep(1)
        ip_info = wlan.ifconfig()
        print("[wifi] Connected:", ip_info[0])

    if led:
        led.off()

    dns = ip_info[3] if ip_info[3] != "0.0.0.0" else config.DNS_FALLBACK
    print("[bridge] DNS server:", dns)
    print(
        "[bridge] USB network: host={} gw={}".format(config.USB_HOST_IP, config.USB_IP)
    )

    bridge = Bridge(ecm, dns_server=dns)
    ecm._bridge = bridge

    print("[bridge] Running — plug USB into host computer")
    gc.collect()

    gc_counter = 0
    while True:
        bridge.process()
        time.sleep(0)
        gc_counter += 1
        if gc_counter >= 100:
            gc.collect()
            gc_counter = 0
        if gc_counter == 50 and not wlan.isconnected():
            print("[wifi] Reconnecting...")
            wlan.connect(config.WIFI_SSID, config.WIFI_PASS)


main()