Hacking Reality with JavaScript

"Wait, you can control that from a browser?"
Vibrate the game controller in your hand. Exchange raw binary data directly with connected USB devices. Send signals to a synthesizer to modulate its sound in real-time.
These capabilities are no longer the exclusive domain of native applications. This book is a practical guide to physically intervening in the "real world" using JavaScript, all from within the browser's sandbox.
No complex environment setup is required. Just open a URL, and your browser transforms into a physical laboratory. While learning the foundations of signal processing and communication protocols hidden beneath familiar high-level APIs, you will experience the thrill of connecting your code to physical phenomena beyond the screen.
"Let's hack reality from the browser."
What You Will Learn (The 7 Interfaces)Light (DOM/Canvas): Reframe the display as a programmable "light source" to transmit data physically.Vibration (Vibration / Gamepad API): Physically shake devices to design tactile feedback.Sound (Web Audio API): Manipulate air vibrations programmatically. A primer on digital signal processing (DSP).Human Interface (WebHID API): Handle raw binary reports from keyboards and game controllers directly.Real-time Control (Web MIDI API): Communicate with electronic instruments and general-purpose controllers in real-time.Serial Communication (Web Serial API): Interact directly with microcontrollers (like Raspberry Pi Pico) using electrical signals.Direct Access (WebUSB API): Write device drivers in JavaScript to control arbitrary USB hardware.
Who This Book Is ForWeb developers who want to expand their horizons beyond the screen.Engineers interested in IoT and hardware but who find C/C++ or driver development daunting.Anyone who wants to rediscover the potential of Web technology.
Step out of the digital box and touch the physical world with the JavaScript you already know.

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