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Add WiFi reconnection to companion radio #2299

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Add WiFi reconnection to companion radio #2299

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9 changes: 9 additions & 0 deletions src/helpers/esp32/SerialWifiInterface.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -53,6 +53,15 @@ void SerialWifiInterface::resetReceivedFrameHeader() {
}

size_t SerialWifiInterface::checkRecvFrame(uint8_t dest[]) {
// periodic WiFi health check (every 60s, only after first successful connection)
if (WiFi.status() == WL_CONNECTED) {
_wifi_was_connected = true;
} else if (_wifi_was_connected && millis() >= _wifi_check_time) {
WIFI_DEBUG_PRINTLN("WiFi disconnected, attempting reconnect...");
WiFi.reconnect();
_wifi_check_time = millis() + 60000;
}

// check if new client connected
auto newClient = server.available();
if (newClient) {
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4 changes: 4 additions & 0 deletions src/helpers/esp32/SerialWifiInterface.h
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Expand Up @@ -8,6 +8,8 @@ class SerialWifiInterface : public BaseSerialInterface {
bool _isEnabled;
unsigned long _last_write;
unsigned long adv_restart_time;
bool _wifi_was_connected;
unsigned long _wifi_check_time;

WiFiServer server;
WiFiClient client;
Expand Down Expand Up @@ -39,6 +41,8 @@ class SerialWifiInterface : public BaseSerialInterface {
deviceConnected = false;
_isEnabled = false;
_last_write = 0;
_wifi_was_connected = false;
_wifi_check_time = 0;
send_queue_len = recv_queue_len = 0;
received_frame_header.type = 0;
received_frame_header.length = 0;
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