Lopy can't reconnect to access point after connection is lost.
Hi I wrote some code for my Lopy that should reconnect to my access point after the connection is lost. I'm using the latest firmware version 1.5.0.b2.
Here's my code:
import network from network import WLAN import utime class Wlan(): _ssid = "ssid" _passw = "secret" wlan = network.WLAN(mode=WLAN.STA) connected = False def __init__(self, ssid, passw): self._ssid = ssid self._passw = passw self.connected = self.wlan.isconnected() self.connect_to_hotspot() def connect_to_hotspot(self): while not self.connected: print('scanning: ') networks = self.wlan.scan() for net in networks: print(net.ssid) if net.ssid == self._ssid: print('found %s' % self._ssid) self.wlan.connect(self._ssid, auth=(WLAN.WPA2, self._passw)) while not self.wlan.isconnected(): utime.sleep_ms(50) print(self.wlan.ifconfig()) self.connected = True; if not self.connected: utime.sleep_ms(1000) print('not connected') print('connected') wlan = Wlan("secret", "ssid") while wlan.wlan.isconnected(): pass print('wlan failed try to reconnect') wlan.wlan.deinit() wlan.connected = False utime.sleep(5) wlan.wlan.init(mode=WLAN.STA) wlan.connect_to_hotspot()
The code runs and connects to my access point. After the connection is lost. I see that the Lopy is trying to reconnect and lists all the wlans. However, the Lopy can't find the network it previous connected to doesn’t show up. Even after disabling the wlan and enabling it again, it still can't find the right wireless network.
If I cut the power for a view seconds and reboot, the wireless network is found and the Lopy connects.
What’s going on? Please help.