Code: Select all
#include "esp_log.h"
#include "mqtt_client.h"
#include "nvs_flash.h"
static const char *TAG = "MQTT";
esp_mqtt_client_handle_t client;
extern const uint8_t hivemq_crt_start[] asm("_binary_hivemq_crt_start");
extern const uint8_t hivemq_crt_end[] asm("_binary_hivemq_crt_end");
const size_t hivemq_crt_size = hivemq_crt_end - hivemq_crt_start;
static esp_err_t mqtt_event_handler_cb(esp_mqtt_event_handle_t event) {
switch (event->event_id) {
case MQTT_EVENT_CONNECTED:
ESP_LOGI(TAG, "MQTT_EVENT_CONNECTED");
esp_mqtt_client_publish(client, "test", "This is a test message", 0, 1, 0);
break;
case MQTT_EVENT_DISCONNECTED:
ESP_LOGI(TAG, "MQTT_EVENT_DISCONNECTED");
break;
default:
break;
}
return ESP_OK;
}
static void mqtt_event_handler(void *handler_args, esp_event_base_t base, int32_t event_id, void *event_data) {
esp_mqtt_event_handle_t event = (esp_mqtt_event_handle_t) event_data;
mqtt_event_handler_cb(event);
}
void mqtt_app_start(void) {
const esp_mqtt_client_config_t mqtt_cfg = {
.broker = {
.address = {
.uri = "mqtts://9a8b0eedab19429098cf30728dc442f6.s1.eu.hivemq.cloud:8883",
},
.verification={
.certificate=(const char *) hivemq_crt_start
}
},
.credentials={
.username="USER",
.authentication={
.password="PASS"
}
}
};
client = esp_mqtt_client_init(&mqtt_cfg);
esp_mqtt_client_register_event(client, MQTT_EVENT_ANY, mqtt_event_handler, client);
esp_mqtt_client_start(client);
}
Code: Select all
const size_t cert_size_with_null = hivemq_crt_size + 1;
char *cert_buffer = (char*)malloc(cert_size_with_null);
if (cert_buffer != NULL) {
memcpy(cert_buffer, hivemq_crt_start, hivemq_crt_size);
cert_buffer[hivemq_crt_size] = '\0';
}
At this point I tried connecting for a week with no result with no result. Can someone try to connect to emqx or hivemq. they have free tiersGuru Meditation Error: Core 0 panic'ed (LoadProhibited). Exception was unhandled.
Core 0 register dump:
PC : 0x4038238d PS : 0x00060433 A0 : 0x803846a3 A1 : 0x3fcad100
A2 : 0x03411003 A3 : 0xffffffff A4 : 0x0000cdcd A5 : 0x00060423
A6 : 0xb33fffff A7 : 0xb33fffff A8 : 0x80382369 A9 : 0x3fcad100
A10 : 0x00060423 A11 : 0x00000000 A12 : 0x00060420 A13 : 0x00000000
A14 : 0x00000000 A15 : 0x011c0000 SAR : 0x0000001a EXCCAUSE: 0x0000001c
EXCVADDR: 0x03411003 LBEG : 0x40056f5c LEND : 0x40056f72 LCOUNT : 0xffffffff
Backtrace: 0x4038238a:0x3fcad100 0x403846a0:0x3fcad130 0x40376e8b:0x3fcad150 0x40376ed4:0x3fcad180 0x40386211:0x3fcad1a0 0x4205dfa8:0x3fcad1c0 0x4205f143:0x3fcad1e0 0x420634aa:0x3fcad210 0x4206e150:0x3fcad260 0x4206ecc2:0x3
fcad290 0x4205cad1:0x3fcad2b0