- Thu Nov 25, 2021 5:48 am
#92909
I forgot to add, I've found that the ESP8266 in some situations will disconnect and reconnect quite regularly. In others, it is solid as a rock. Haven't figured why, but it doesn't seem to be based on strength of the WiFi connection.
I also didn't really answer your question. Whether you continue to poll for WiFi status depends on if you need to know that you're connected. You don't need to, to re-initiate the connecting process, but you obviously can't sends stuff if you're disconnected. So it depends on how important the information you have is to be successfully sent.
If you prefer, instead of polling to see if your WiFi status is "currently" connected, there is a low level method to supply a callback for WiFi events.
wifi_set_event_handler_cb(statusHandler);And here is a sample
statusHandlerCode: Select allICACHE_FLASH_ATTR void statusHandler(System_Event_t *evt)
{
switch (evt->event)
{
case EVENT_STAMODE_CONNECTED:
dbg("connect to ssid %s, channel %d\n",
evt->event_info.connected.ssid,
evt->event_info.connected.channel);
break;
case EVENT_STAMODE_DISCONNECTED:
dbg("disconnect from ssid %s, reason %d\n",
evt->event_info.disconnected.ssid,
evt->event_info.disconnected.reason);
// * When router powers off, we get reason REASON_ASSOC_EXPIRE (4) once, then
// REASON_NO_AP_FOUND (201) repeatedly trying to reconnect. Might be
// better to respond to 4. Keep evaluating.
// * Got 201 once on first connection, then proceeded to connect properly.
if ((evt->event_info.disconnected.reason == REASON_ASSOC_EXPIRE) &&
(_Hdr.start == aStrongest))
{
wifi_station_disconnect();
InqInterval::SetInterval(scanner, 1, NULL, AUTO_LBL);
}
break;
case EVENT_STAMODE_AUTHMODE_CHANGE:
dbg("mode: %d -> %d\n",
evt->event_info.auth_change.old_mode,
evt->event_info.auth_change.new_mode);
break;
case EVENT_STAMODE_GOT_IP:
dbg("ip:" IPSTR " mask: " IPSTR " gw: " IPSTR "\n",
IP2STR(&evt->event_info.got_ip.ip),
IP2STR(&evt->event_info.got_ip.mask),
IP2STR(&evt->event_info.got_ip.gw));
break;
case EVENT_STAMODE_DHCP_TIMEOUT:
dbg("EVENT_STAMODE_DHCP_TIMEOUT\n");
break;
case EVENT_SOFTAPMODE_STACONNECTED:
dbg("station: " MACSTR " join, AID = %d\n",
MAC2STR(evt->event_info.sta_connected.mac),
evt->event_info.sta_connected.aid);
break;
case EVENT_SOFTAPMODE_STADISCONNECTED:
dbg("station: " MACSTR " leave, AID = %d\n",
MAC2STR(evt->event_info.sta_disconnected.mac),
evt->event_info.sta_disconnected.aid);
break;
case EVENT_SOFTAPMODE_PROBEREQRECVED:
dbg("station: " MACSTR " leave, rssi = %d\n",
MAC2STR(evt->event_info.ap_probereqrecved.mac),
evt->event_info.ap_probereqrecved.rssi);
break;
case EVENT_OPMODE_CHANGED:
dbg("OpMode old=%u, new=%u\n",
evt->event_info.opmode_changed.old_opmode,
evt->event_info.opmode_changed.new_opmode);
break;
case EVENT_OPMODE_CHANGED + 1:// EVENT_SOFTAPMODE_DISTRIBUTE_STA_IP:
{
u8* p = (u8*)&evt->event_info;
dbg("station: " MACSTR " ip: " IPSTR " ex: %u, %u\n",
MAC2STR(evt->event_info.sta_disconnected.mac), // 0-5
IP2STR(&evt->event_info.got_ip.gw), // 8-11
*(p+6), *(p+7)); // 6,7
}
break;
default:
break;
}
}
Good luck
