Hi, I am new to HiveMQ. I can to connect my device to my basic cluster using the MQTT.fx client. I have select the port 8883 and the option "CA server signed certificate " on the “SSL/TLS settings” Now I am trying to connect to the broker using my arduino ethernet device and the PubSubClient lib…

Hi Aman, on the description of this video tutorial: Virtuino MQTT + HiveMQ - YouTube you can find an example code for secure connection to ESP32, that I have tested and works fine. Regards!

Hey Chris, I just happen to have ran my first experiments with a D1 Mini (ESP8266) and a HiveMQ Cloud Basic cluster yesterday. I got it working using the Adafruit MQTT Library. Here’s a snippet: #include <ESP8266WiFi.h> #include "Adafruit_MQTT.h" #include "Adafruit_MQTT_Client.h" /**************…

Hi Simon, thank you very much :grinning: Your code works fine! I have modified the library example of the PubSubClient library using the WiFiClientSecure. This is the final code for the PubSubClient that works fine too! #include <ESP8266WiFi.h> #include <PubSubClient.h> // Update these with v…

FYI as i mentioned initially the fingerprint has changed by now and my device has stopped working due to this reason, so i’m including a small snippet here for complete-ness how i updated my code to work by verifying the root CA instead of using the fingerprint directly (this should practically work…

Hi, Check this out! Basically: “openssl s_client -showcerts -verify 5 -connect your_id.s1.eu.hivemq.cloud:8883” and the last cert from the chain.

Sorry for the late reply, missed the message somehow. I also updated my code to use the root CA Here’s a minimal snippet of what you have to change This uses the X1 root CA from letsencrypt. This should work for any hivemq cloud cluster and also work after the root cert change in letsencrypt. …

Hi Simon, I have tried the same code but could not succeed. FYI, I also changed the fingerprint keys (copied from console.hivemq.cloud, under SHA-1 Fingerprint). Below are the steps I followed Copied your code Edit userrname, password, Fingerprint, mqtt_server, wifi cred, topic. Upload to ESP82…

Arduino example with server signed certificate

Chris May 22, 2021, 12:05am 5

Hi,
my device has stopped working too.
How to create the root_ca file for my broker url?
The above not working with ESP8266 and pubsubclient library

Topic		Replies	Views
Issues connecting esp32 to mqtt broker HiveMQ Client Library	10	3456	June 6, 2024
How to connect to HiveMQ Cloud from Arduino HiveMQ Cloud	5	8762	November 9, 2021
Connecting ESP32 to cloud HiveMQ using root certificate HiveMQ Cloud	4	4188	January 16, 2023
Nicla Vision to HiveMQ HiveMQ Cloud	9	842	May 19, 2023
Issues connecting ESP32 to my web cluster HiveMQ Cloud	3	209	February 18, 2025

Arduino example with server signed certificate

Related topics