"The Web Bluetooth API allows websites to directly communicate with nearby Bluetooth Low Energy (BLE) devices. This means a web application can connect to hardware devices like fitness trackers, IoT sensors, smart lights, and custom electronics - without installing native apps. This is not a future concept. Web Bluetooth is already being used in real-world projects, especially for IoT dashboards, device configuration panels, and experimental hardware-based web apps."
"Before you start, keep these points in mind: Works only with Bluetooth Low Energy (BLE) devices Requires HTTPS (except localhost) User interaction is mandatory (button click required) Supported mainly in Chromium-based browsers The Web Bluetooth process usually follows these steps: User clicks a button Browser shows a device selection dialog User selects a Bluetooth device Website connects to the device Reads or writes data using GATT services This strict permission model exists for security and privacy reasons."
The Web Bluetooth API enables web applications to discover and communicate with nearby Bluetooth Low Energy (BLE) devices using JavaScript. Web applications can connect to hardware such as fitness trackers, IoT sensors, smart lights, and custom electronics without installing native apps. The API requires BLE devices, HTTPS (except localhost), a user gesture to initiate device selection, and is mainly supported in Chromium-based browsers. The typical workflow involves a user-triggered device selection dialog, establishing a GATT connection, and reading or writing characteristics. The permission model enforces user consent for security and privacy. Web Bluetooth is already used for IoT dashboards, device configuration, and experimental hardware web apps.
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