MQTT connect stops I2C data collection

Using Arduino Networking, Protocols, and Devices
#1

Hi,

I am using Arduino Nano 33 IoT with ArduinoMqttClient library and MAX30102 sensor for data collection over I2C. As soon as I call mqttClient.connect() the sensor stops reading the data over I2C. As soon as I do not connect with mqttClient I am able to get the data from the sensor.

#2

What does the connect attempt return? Where is the MQTT server you're trying to connect to?

#3

The connection runs fine, publishing and subscribing too, the data is flowing. The server is on AWS. But how does that influence the problem?

#4

That's odd. Time to post your code and schematic.

#5

What I found out so far is that ECC may be the culprit (hogging the bus) so I am trying creating additional I2C bus and seeing if it solves the issue.