droidblastnz
commented
1 year ago Revised code yet to test keen for advice on this below....?
Added SPIFFS
#include "SPIFFS.h
Downloaded isrgrootx1.pem You can download the root certificate here 1.2k. This will create a file called “isrgrootx1.pem”, which you can use as “Server Certificate”.
Created a data dir and copied the isrgrootx1.pem which is C:\Users\ddd\Documents\Arduino\SIM7600\5.5502\data\isrgrootx1.pem
Used ESP32 Sketch Data Upload to add the isrgrootx1.pem to the ESP32
Serial port COM6
Connecting........_____....._____....._____....._____....._____.....___
Chip is ESP32D0WDQ5 (revision 1)
Features: WiFi, BT, Dual Core, 240MHz, VRef calibration in efuse, Coding Scheme None
MAC: f4:cf:a2:aa:2a:18
Uploading stub...
Running stub...
Stub running...
Changing baud rate to 921600
Changed.
Configuring flash size...
Auto-detected Flash size: 4MB
Compressed 1507328 bytes to 4832...
Wrote 1507328 bytes (4832 compressed) at 0x00290000 in 0.1 seconds (effective 204383.4 kbit/s)...
Hash of data verified.
Leaving...
Hard resetting via RTS pin...
boolean mqttConnect() //boolean true or false
{
SerialMon.print("Connecting to ");
SerialMon.println(broker);
SerialMon.println(""); //add CR
// Connect to MQTT Broker
String serverAddress = "xxxxxxxx.s1.eu.hivemq.cloud";
int serverPort = 8883;
int keepAliveSeconds = 60;
int cleanSession = 1;
String username = "xxxxxx";
String password = "xxxxxx";
// Set SSL version and authentication mode
modem.sendAT("+CSSLCFG=\"sslversion\",0,4"); //Set the SSL version of the first SSL context
if (!modem.waitResponse(1000)) {
Serial.println("CSSLCFG command failed");
return false;
}
modem.sendAT("+CSSLCFG=\"authmode\",0,1"); //Set the authentication mode(verify server) of the first SSL context
if (!modem.waitResponse(1000)) {
Serial.println("CSSLCFG command failed");
return false;
}
// Set server root CA
modem.sendAT("+CSSLCFG=\"cacert\",0,\"isrgrootx1.pem\""); //Set the server root CA of the first SSL context
if (!modem.waitResponse(1000)) {
Serial.println("CSSLCFG command failed");
return false;
}
// Start MQTT service and activate PDP context
modem.sendAT("+CMQTTSTART");
if (!modem.waitResponse(1000)) {
Serial.println("MQTT START command failed");
return false;
}
// Acquire a client
modem.sendAT("+CMQTTACCQ=0,\"Client1\",1,4"); //1 MQTT server with SSL/TLS 4 MQTT version 3.1.1
if (!modem.waitResponse(1000)) {
Serial.println("MQTT ACCQ command failed");
return false;
}
// Set the first SSL context to be used in the SSL connection
modem.sendAT("+CMQTTSSLCFG=0,0");
if (!modem.waitResponse(1000)) {
Serial.println("MQTT SSLCFG command failed");
return false;
}
// Connect to MQTT server
String mqttConnectCommand = "AT+CMQTTCONNECT=0,\"tcp://" + serverAddress + ":" + String(serverPort) + "\"," + String(keepAliveSeconds) + "," + String(cleanSession) + ",\"" + username + "\",\"" + password + "\"";
boolean status = SerialAT.print(mqttConnectCommand);
if (status == false) {
SerialMon.println("MQTT Connect fail");
return false;
}
SerialMon.println("MQTT Connect success");
//If GRPS Connected
if ((status == true) && modem.isGprsConnected()) {
}
mqtt.subscribe(topicLed);
return mqtt.connected();
}Output
22:49:11.310 -> +IPADDR: xxx.xxx.xxx.xxx
22:49:11.357 ->
22:49:11.357 -> OK
22:49:11.403 -> Connecting to xxxxxxxx.s1.eu.hivemq.cloud
22:49:11.403 ->
22:49:11.546 -> File: /isrgrootx1.pem
22:49:11.592 -> AT+CSSLCFG="sslversion",0,4
22:49:11.592 ->
22:49:11.639 -> OK
22:49:11.639 -> AT+CSSLCFG="authmode",0,1
22:49:11.639 ->
22:49:11.639 -> OK
22:49:11.639 -> AT+CSSLCFG="cacert",0,"isrgrootx1.pem"
22:49:11.685 ->
22:49:11.685 -> ERROR
22:49:11.685 -> AT+CMQTTSTART
22:49:11.685 ->
22:49:11.685 -> +CMQTTSTART: 23
lewisxhe
Oswaldott
Please provide some example code using the Tiny_GSM library to connect to a cloud MQTT broker on 8883.
Example in the library will not connect to a private xxxxx.s1.eu.hivemq.cloud 8883 but connects to broker.hivemq.com 1883 without issue.