micropy-light/code/boot.py

# This file is executed on every boot (including wake-boot from deepsleep)
#import esp
#esp.osdebug(None)
import gc
import time
import network
import webrepl
from wifi_config import known_wifi_ap

# Connect to one of the known wifi AP
WLAN = network.WLAN(network.STA_IF)
WLAN.active(True)
wifi_ap_list = WLAN.scan()

for ap in wifi_ap_list:
    if WLAN.isconnected():
        break

    ap_ssid = ap[0].decode("utf-8")
    if ap_ssid in known_wifi_ap.keys():
        print("Known wifi network found : {}".format(ap_ssid))
        print("Try to connect...")
        WLAN.connect(ap_ssid, known_wifi_ap[ap_ssid])

    DELAY = 0

    while not WLAN.isconnected():
        print("Waiting for wifi to connect...")
        time.sleep(1)
        DELAY += 1
        if DELAY > 10:
            print("Wifi time-out")
            break

webrepl.start()

print("Boot.py : Done")
gc.collect()