A simple full-stack JavaScript application lets you see what happens under the hood in the WebSockets communication protocol.

Web developers typically depend on Ajax long-polling for instantaneous data in the browser, but today's version of WebSockets would do that job (and a few more) even better.

A while back, [Blaise] tried his hand at getting the WebSocket protocol working with PIC microcontrollers, WiFi adapters, and a few pots, knobs, and switches. It was an excellent project for its ti… ...