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wifi reconnection workaround on esp32

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#173 , currently wifi autoreconnection on ESP32 doesn't work reliably. To bypass this issue I added a reconnection after a failure_number
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Florian committed 2018-04-11 20:03:31 +02:00
1 parent b25eacdcbb
commit ea987ca945
1 file changed
+5 -16
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OpenMQTTGateway.ino
+5 -16
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@@ -152,7 +152,6 @@ unsigned long timer_sys_measures = 0;
//flag for saving data //flag for saving data
bool shouldSaveConfig = true; bool shouldSaveConfig = true;
//do we have been connected once to mqtt //do we have been connected once to mqtt
boolean connected_once = false;
//callback notifying us of the need to save config //callback notifying us of the need to save config
void saveConfigCallback () { void saveConfigCallback () {
@@ -160,15 +159,6 @@ void saveConfigCallback () {
shouldSaveConfig = true; shouldSaveConfig = true;
} }
#if defined(ESP32)
void WiFiEvent(WiFiEvent_t event){
if(event == SYSTEM_EVENT_STA_DISCONNECTED){
trc("Event: SYSTEM_EVENT_STA_DISCONNECTED, reconnecting");
WiFi.reconnect();
}
}
#endif
boolean reconnect() { boolean reconnect() {
int failure_number = 0; int failure_number = 0;
@@ -177,7 +167,7 @@ boolean reconnect() {
trc(F("MQTT connection...")); //F function enable to decrease sram usage trc(F("MQTT connection...")); //F function enable to decrease sram usage
if (client.connect(Gateway_Name, mqtt_user, mqtt_pass, will_Topic, will_QoS, will_Retain, will_Message)) { if (client.connect(Gateway_Name, mqtt_user, mqtt_pass, will_Topic, will_QoS, will_Retain, will_Message)) {
trc(F("Connected to broker")); trc(F("Connected to broker"));
connected_once = true; failure_number = 0;
// Once connected, publish an announcement... // Once connected, publish an announcement...
client.publish(will_Topic,Gateway_AnnouncementMsg,will_Retain); client.publish(will_Topic,Gateway_AnnouncementMsg,will_Retain);
// publish version // publish version
@@ -193,7 +183,7 @@ boolean reconnect() {
trc(F("Subscription OK to the subjects")); trc(F("Subscription OK to the subjects"));
} }
} else { } else {
if (!connected_once) failure_number ++; // if we never connected to broker we count the failure failure_number ++; // we count the failure
trc(F("failed, rc=")); trc(F("failed, rc="));
trc(String(client.state())); trc(String(client.state()));
trc(F("try again in 5s")); trc(F("try again in 5s"));
@@ -366,6 +356,7 @@ void setup()
#if defined(ESP32) || defined(ESPWifiManualSetup) #if defined(ESP32) || defined(ESPWifiManualSetup)
void setup_wifi() { void setup_wifi() {
delay(10); delay(10);
int failureAttempt = 0; //DIRTY FIX ESP32 waiting for https://github.com/espressif/arduino-esp32/issues/653
WiFi.mode(WIFI_STA); WiFi.mode(WIFI_STA);
// We start by connecting to a WiFi network // We start by connecting to a WiFi network
trc(F("Connecting to ")); trc(F("Connecting to "));
@@ -380,6 +371,8 @@ void setup_wifi() {
while (WiFi.status() != WL_CONNECTED) { while (WiFi.status() != WL_CONNECTED) {
delay(500); delay(500);
trc(F(".")); trc(F("."));
failureAttempt++; //DIRTY FIX ESP32
if (failureAttempt > 30) setup_wifi(); //DIRTY FIX ESP32
} }
trc(F("WiFi ok with manual config credentials")); trc(F("WiFi ok with manual config credentials"));
@@ -549,10 +542,6 @@ void loop()
//MQTT client connexion management //MQTT client connexion management
if (!client.connected()) { // not connected if (!client.connected()) { // not connected
#if defined(ESP32) // if wifi disconnected on ESP32 we reconnect
if(WiFi.getAutoReconnect()) WiFi.onEvent(WiFiEvent);
#endif
//RED ON //RED ON
digitalWrite(led_error, LOW); digitalWrite(led_error, LOW);