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Fix blocking WiFi connect on RP2040, log link state

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arduino-pico's WiFi.begin() blocks for up to 2x its 15s timeout, which
stalled the mesh loop on every reconnect attempt; use beginNoBlock().
Log the IP when the link comes up, and the status code when retrying.
This commit is contained in:
Michael Graff
2026-09-05 23:15:13 -05:00
parent 739a67c9f1
commit 58181bb8a2
1 changed files with 15 additions and 2 deletions
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examples/companion_radio/main.cpp
+15 -2
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@@ -112,6 +112,7 @@ void halt() {
unsigned long last_wifi_reconnect_attempt = 0;
const char* wifi_ssid = WIFI_SSID; // replaced by stored prefs, if set
const char* wifi_pwd = WIFI_PWD;
bool wifi_was_connected = false;
#endif
void setup() {
@@ -215,7 +216,11 @@ void setup() {
}
WIFI_DEBUG_PRINTLN("connecting to %s", wifi_ssid);
#if defined(RP2040_PLATFORM)
WiFi.beginNoBlock(wifi_ssid, wifi_pwd); // begin() blocks for up to 2x its 15s timeout
#else
WiFi.begin(wifi_ssid, wifi_pwd);
#endif
wifi_interface.begin(TCP_PORT);
interface_manager.addInterface(InterfaceType::WiFi, &wifi_interface);
#endif
@@ -276,13 +281,21 @@ void loop() {
// RP2040 has no WiFi event callbacks, so poll the link state instead
#if defined(RP2040_PLATFORM)
wifi_needs_reconnect = (WiFi.status() != WL_CONNECTED);
if (wifi_was_connected == wifi_needs_reconnect) { // link state changed
wifi_was_connected = !wifi_needs_reconnect;
if (wifi_was_connected) {
WIFI_DEBUG_PRINTLN("connected, listening on %s:%d", WiFi.localIP().toString().c_str(), TCP_PORT);
} else {
WIFI_DEBUG_PRINTLN("link lost");
}
}
#endif
// Safely attempt to reconnect every 10 seconds if flagged
if (wifi_needs_reconnect && (millis() - last_wifi_reconnect_attempt > 10000)) {
WIFI_DEBUG_PRINTLN("Attempting manual WiFi reconnect...");
WIFI_DEBUG_PRINTLN("Attempting manual WiFi reconnect to %s (status %d)...", wifi_ssid, WiFi.status());
#if defined(RP2040_PLATFORM)
WiFi.begin(wifi_ssid, wifi_pwd); // no reconnect() on this platform
WiFi.beginNoBlock(wifi_ssid, wifi_pwd); // no reconnect() on this platform
#else
WiFi.disconnect();
WiFi.reconnect();