Easy to compare and contrast Websockets and MQTT now too. Websocket Examples – nothing special here, but the topic comes up enough that having a set of examples on hand was something I needed. My favorite example in this repo is the WebMIDI to MQTT examples. There are some nice GUI tools available now too, like MQTT Explorer and shiftr.io’s desktop broker. The browser-based stuff is all in p5.js, but I’ll add some plain vanilla JS examples soon. All microcontroller examples were written with the Arduino Nano 33 IoT, though any of the WiFi-enabled Arduinos should do the trick. MQTT Examples – I’ve been working on this one since last summer in bits and pieces, but now there’s enough there to be useful. Serialport example with p5.serialport (not using p5.js itself though) and Arduino_JSON library.Most of this is a thin wrapper around the Mozilla Developer Network pages, with a focus on connecting.
I put together some examples for various ways to do that. Just enough HTML for Connected Devices – If a device connects to your phone or laptop, you’re going to need to build an interface for it at some point, and the Document Object Model (HTML/CSS/JavaScript) is a quick way to do it. All of this is going into my connected devices class this semester. January turned out to be a good time for tidying up my gitHub repos, because it was cold and there was no incentive to travel, and I had to quarantine for a few days in the midst of it (no symptoms, thankfully).
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