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I wanted to test connecting the Nano RP2040 Connect to my RPi4 MQTT server by publishing temperature and humidity data from a BME280 sensor.  I figured that this should be fairly easy since I've already used the BME280 with another RP2040 board - the SparkFun Pro Micro RP2040 and I've used my MQTT server with multiple ESP32 devices.   Of course, the devil is in the details...   I stayed within the confines of the Arduino IDE hoping that it would makes things simpler, and it did, ...
Continuing my journey with the Nano RP2040 Connect, I'll try connecting with and displaying data on the Arduino IoT Cloud.  I'll admit that I don't use the Arduino IoT Cloud much.  I prefer local data processing and storage.  I have an RPi4 dedicated as an always on Home Controller and MQTT server.  The last time I used the Arduino IoT Cloud was with a MKR1010 back in March 2019.  The User Interface is a lot more polished now, but the limits of the Free Plan are still ex ...

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