55 lines
1.2 KiB
C++
55 lines
1.2 KiB
C++
#include <PicoMQTT.h>
|
|
|
|
#if __has_include("config.h")
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#ifndef WIFI_SSID
|
|
#define WIFI_SSID "WiFi SSID"
|
|
#endif
|
|
|
|
#ifndef WIFI_PASSWORD
|
|
#define WIFI_PASSWORD "password"
|
|
#endif
|
|
|
|
PicoMQTT::Client mqtt("broker.hivemq.com");
|
|
|
|
unsigned long last_subscribe_time = 0;
|
|
int resubscribe = 1;
|
|
|
|
void handler_foo(const char * topic, const char * payload) {
|
|
Serial.printf("Handler foo received message in topic '%s': %s\n", topic, payload);
|
|
}
|
|
|
|
void handler_bar(const char * topic, const char * payload) {
|
|
Serial.printf("Handler bar received message in topic '%s': %s\n", topic, payload);
|
|
}
|
|
|
|
void setup() {
|
|
// Setup serial
|
|
Serial.begin(115200);
|
|
|
|
// Connect to WiFi
|
|
Serial.printf("Connecting to WiFi %s\n", WIFI_SSID);
|
|
WiFi.mode(WIFI_STA);
|
|
WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
|
|
while (WiFi.status() != WL_CONNECTED) { delay(1000); }
|
|
Serial.println("WiFi connected.");
|
|
|
|
mqtt.begin();
|
|
}
|
|
|
|
void loop() {
|
|
mqtt.loop();
|
|
|
|
// Resubscribe every 5 seconds
|
|
if (millis() - last_subscribe_time >= 5000) {
|
|
if (++resubscribe % 2 == 0) {
|
|
mqtt.subscribe("picomqtt/#", handler_foo);
|
|
} else {
|
|
mqtt.subscribe("picomqtt/#", handler_bar);
|
|
}
|
|
last_subscribe_time = millis();
|
|
}
|
|
}
|