The independent, practitioner-built reference for WebSocket technology. Protocol internals, production patterns, scaling guides, and honest protocol comparisons with real code.
Download LTspice (free, but brutal UI) or use CircuitJS (web, instant). Take any circuit from the old PDF. Simulate it first. Change a resistor value. Watch the smoke virtually . This is the "better" version of blindly following a diagram.
These collections often predate the ubiquity of microcontrollers like Arduino, ESP32, and Raspberry Pi, which are central to modern DIY electronics. What Makes a Resource "Better" Than a Static PDF?
Interactive Tools
Test WebSocket connections in real time. Send messages and see them echoed back instantly — no signup, no setup.
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Find your protocolHow it works
One request, one response. Connection closes. Every interaction has overhead.
Server streams to client only. Great for push — can't send back.
Full-duplex, persistent. Both sides send whenever they want.
Download LTspice (free, but brutal UI) or use CircuitJS (web, instant). Take any circuit from the old PDF. Simulate it first. Change a resistor value. Watch the smoke virtually . This is the "better" version of blindly following a diagram.
These collections often predate the ubiquity of microcontrollers like Arduino, ESP32, and Raspberry Pi, which are central to modern DIY electronics. What Makes a Resource "Better" Than a Static PDF?