Желаю вам хорошего дня.
У меня проблема с подключением к esp32 pico v4 board и centos7 mosquitto mqtt с использованием защищенного соединения tls / ssl.
Мой код arduino выглядит следующим образом.
#include <WiFi.h>
#include <WiFiClientSecure.h>
#include <PubSubClient.h>
#include <ESPmDNS.h>
/* change it with your ssid-password */
const char* ssid = "dd-wrt";
const char* password = "0000000000";
/* this is the MDNS name of PC where you installed MQTT Server */
const char* serverHostname = "iotsharing";
const char* ca_cert = \
"-----BEGIN CERTIFICATE-----\n" \
"MIIDpzCCAo+gAwIBAgIJAOHc50EeJ6aeMA0GCSqGSIb3DQEBDQUAMGoxFzAVBgNV\n" \
"BAMMDkFuIE1RVFQgYnJva2VyMRYwFAYDVQQKDA1Pd25UcmFja3Mub3JnMRQwEgYD\n" \
"VQQLDAtnZW5lcmF0ZS1DQTEhMB8GCSqGSIb3DQEJARYSbm9ib2R5QGV4YW1wbGUu\n" \
"bmV0MB4XDTE3MDgyNzAyMDQwNFoXDTMyMDgyMzAyMDQwNFowajEXMBUGA1UEAwwO\n" \
"QW4gTVFUVCBicm9rZXIxFjAUBgNVBAoMDU93blRyYWNrcy5vcmcxFDASBgNVBAsM\n" \
"C2dlbmVyYXRlLUNBMSEwHwYJKoZIhvcNAQkBFhJub2JvZHlAZXhhbXBsZS5uZXQw\n" \
"ggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQC8mQfR058k7LBV7Xt6RiZL\n" \
"BIpC5ewSweAnsaS6Ue+jx6uruJsccnIJbiHJVjOcSYV3JLMt3un7d0JTottW6Zx/\n" \
"VleYC4CUzf3bcHLe7Qhl0veP9QAdZceblMCbEqAM9227EaXKQVzAYGwRnuxvfJM7\n" \
"P84iu2J/zB4o+AEWUJDIW38SO4b+0i1FYHmKKxEx7dztDyCJvTsn35wX3oKlJ5e+\n" \
"na/6csD+Ngh9QQ+wDd02TBqXKB7UXyRT5ECesu19U6CTE7Wr9xECbDO262aD6GtC\n" \
"HpeSAWqa6HKbKjZ20pL5V5ceS85TdWbvPdVrFUDWMIhK9dNuwhIK0s6VyRcJkbe5\n" \
"AgMBAAGjUDBOMB0GA1UdDgQWBBQPZ0u1jIg65jT3Th42VGMnya6VDDAfBgNVHSME\n" \
"GDAWgBQPZ0u1jIg65jT3Th42VGMnya6VDDAMBgNVHRMEBTADAQH/MA0GCSqGSIb3\n" \
"DQEBDQUAA4IBAQB8JrNsV32aXBOLSX8WqoHuU2NOJH+1fTdGDLYLEAPe/x3YxkNC\n" \
"MJDx8TGLSQsz4L0kCsLEQ/qsnkuPJUt3x7eNIMOrvS+zDv9wXqnGwMgeAOtEkG5n\n" \
"NbPezM50ovgZAuEZMphp2s/Zl0EROydnqpkweWa5bxYRkiQBlp0nUkCtec3PZ6iO\n" \
"QVPj/bHHi4T3jkbL0+oLNShv9Zw9hr6BkKCVqeHe9prlOMVuEJOVrEKzkhhAY90p\n" \
"Wwrj+OQYCLllJVD9VQhLVOXLg1bSuqkld3PCQBFNvrvk4Up61wuu/Oj5c5g8vwYd\n" \
"0ul29sU3heTw4ZXifpbMXRM36LFNH5uLrSba\n" \
"-----END CERTIFICATE-----\n";
/* create an instance of WiFiClientSecure */
WiFiClientSecure espClient;
PubSubClient client(espClient);
/*LED GPIO pin*/
const char led = 4;
/* topics */
#define COUNTER_TOPIC "smarthome/room1/counter"
#define LED_TOPIC "smarthome/room1/led" /* 1=on, 0=off */
long lastMsg = 0;
char msg[20];
int counter = 0;
void receivedCallback(char* topic, byte* payload, unsigned int length) {
Serial.print("Message received: ");
Serial.println(topic);
Serial.print("payload: ");
for (int i = 0; i < length; i++) {
Serial.print((char)payload[i]);
}
Serial.println();
/* we got '1' -> on */
if ((char)payload[0] == '1') {
digitalWrite(led, HIGH);
} else {
/* we got '0' -> on */
digitalWrite(led, LOW);
}
}
void mqttconnect() {
/* Loop until reconnected */
while (!client.connected()) {
Serial.print("MQTT connecting ...");
/* client ID */
String clientId = "ESP32Client";
/* connect now */
if (client.connect(clientId.c_str())) {
Serial.println("connected");
/* subscribe topic */
client.subscribe(LED_TOPIC);
} else {
Serial.print("failed, status code =");
Serial.print(client.state());
Serial.println("try again in 5 seconds");
/* Wait 5 seconds before retrying */
delay(5000);
}
}
}
void setup() {
Serial.begin(115200);
// We start by connecting to a WiFi network
Serial.println();
Serial.print("Connecting to ");
Serial.println(ssid);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
/* set led as output to control led on-off */
pinMode(led, OUTPUT);
Serial.println("");
Serial.println("WiFi connected");
Serial.println("IP address: ");
Serial.println(WiFi.localIP());
/*setup MDNS for ESP32 */
if (!MDNS.begin("esp32")) {
Serial.println("Error setting up MDNS responder!");
while(1) {
delay(1000);
}
}
/* get the IP address of server by MDNS name */
Serial.println("mDNS responder started");
IPAddress serverIp = MDNS.queryHost(serverHostname);
Serial.print("IP address of server: ");
Serial.println(serverIp.toString());
/* set SSL/TLS certificate */
espClient.setCACert(ca_cert);
/* configure the MQTT server with IPaddress and port */
client.setServer(serverIp, 8883);
/* this receivedCallback function will be invoked
when client received subscribed topic */
client.setCallback(receivedCallback);
}
void loop() {
/* if client was disconnected then try to reconnect again */
if (!client.connected()) {
mqttconnect();
}
/* this function will listen for incomming
subscribed topic-process-invoke receivedCallback */
client.loop();
/* we increase counter every 3 secs
we count until 3 secs reached to avoid blocking program if using delay()*/
long now = millis();
if (now - lastMsg > 3000) {
lastMsg = now;
if (counter < 100) {
counter++;
snprintf (msg, 20, "%d", counter);
/* publish the message */
client.publish(COUNTER_TOPIC, msg);
}else {
counter = 0;
}
}
}
Результат подключения всегда «сбой рукопожатия»
Я пытался использовать старую библиотеку wifiClientSecure, но она не работает ..
Я думаю, что я пытаюсьвсе, что я могу, но весь результат - сбой.
Когда я подключаюсь к серверу mosquitto без tls / ssl, он отлично работает.
И когда я подключаюсь к серверу mosquitto с помощью mqtt.fxс соединением tls / ssl, он также прекрасно работает.
Единственная ошибка моей платы esp32 pico v4.
Если у вас возникла та же проблема и вы решили ее, можете ли вы дать мне хороший ответ?
Я ссылался на все по ссылке ниже.
http://www.iotsharing.com/2017/08/how-to-use-esp32-mqtts-with-mqtts-mosquitto-broker-tls-ssl.html