How to Use Raspberry Pi Pico W With Node-RED
The Raspberry Pi Pico W is cheap enough to forget about it and in this project we do just that. We build a sensor platform from the Pico W and send live data to the cloud using Node-RED to create our own web application.
In a previous how to, we were introduced MQTT (Message Query Telemetry Transport) with the Raspberry Pi Pico W. In that tutorial we kept things relatively simple. Publishing and subscribing to messages using a little MicroPython and an MQTT broker. We then used an online MQTT service to interact with the Pico W. This proved that everything worked, but in this how-to, we are going to kick things up a notch and build a web application using very little code.
In this how to, we will use Node-RED, an event driven programming language that uses nodes (blocks) to create flows (algorithms) that will subscribe to a live MQTT data feed from our Raspberry Pi Pico W and use that data to create real-time charts and gauges in a web application.
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