People who follow me, know I’m a big fan of the Elecrow CrowPi, the little suitcase with a Raspberry Pi and a lot of electronic components included. I used it already a lot in my presentations at various conferences to demonstrate #JavaOnRaspberryPi. Recently, Elecrow sent me a “Raspberry Pi Pico Advanced Kit” for free, to test and evaluate it.
Exactly one year ago, in December 2021, I published three articles of MQTT messaging with Raspberry Pi, Raspberry Pi Pico and HiveMQ Cloud. On June 30th of 2022, Raspberry Pi released a new product, that is the subject of this post: the Pico W. Yes, a new version of the original Pico, but with Wi-Fi.
In the previous two posts in this series, we used Java on the Raspberry Pi mini-computer to send sensor data to HiveMQ Cloud, and visualize it on a dashboard. “Part 1: MQTT on Raspberry Pi, Send Sensor Data to HiveMQ Cloud with Java and Pi4J” “Part 2: Using MQTT and Raspberry Pi to Visualize Sensor Data on a TilesFX Dashboard” Now we are going to add some more data to our messaging system with another member of the Raspberry Pi family: the Pico.