Targeting a variety of platforms is as simple as providing the necessary UART, CPU, and CLOCK implementations. BTstack is currently capable of connecting to Bluetooth-modules via: (H2) HCI USB, (H4) HCI UART + TI's eHCILL, and (H5) HCI Three-Wire UART.
On larger systems, BTstack provides a server that connects to a Bluetooth module.
Multiple applications can communicate with this server over different inter-process communication methods. As sockets are used for client/server communication, it's easy to interact via higher-level level languages, e.g. there's already a Java binding for use in desktop environments.
BTstack supports the Central and the Peripheral Role of Bluetooth 5 Low Energy specification incl. LE Secure Connections, LE Data Channels, and LE Data Length Extension. It can be configured to run as either single-mode stack or a dual-mode stack.
BTstack is free for non-commercial use. However, for commercial use, <ahref="mailto:contact@bluekitchen-gmbh.com">tell us</a> a bit about your project to get a quote.
[<img src="http://buildbot.bluekitchen-gmbh.com/btstack/badges/port-wiced-h4-develop.svg">](https://buildbot.bluekitchen-gmbh.com/btstack/#/builders/port-wiced-h4-develop) | [wiced-h4](https://github.com/bluekitchen/btstack/tree/develop/port/wiced-h4) | Broadcom/Cypress platforms that support the WICED SDK via H4 UART, e.g. [RedBear Duo](https://redbear.cc/product/wifi-ble/redbear-duo.html) (BCM43438 A1), [Inventek Systems ISM4334x](https://www.inventeksys.com/wifi/wifi-modules/ism4343-wmb-l151/) (BCM43438 A1), [Inventek Systems ISM4343](https://www.inventeksys.com/products-page/wifi-modules/serial-wifi/ism43341-m4g-l44-cu-embedded-serial-to-wifi-ble-nfc-module/) (BCM43340)
No build server | [wiced-h5](https://github.com/bluekitchen/btstack/tree/develop/port/wiced-h5) | Broadcom platforms that support the WICED SDK via H5 UART, see wiced-h4
[<img src="http://buildbot.bluekitchen-gmbh.com/btstack/badges/port-posix-h4-develop.svg">](https://buildbot.bluekitchen-gmbh.com/btstack/#/builders/port-posix-h4-develop) | [posix-h4](https://github.com/bluekitchen/btstack/tree/develop/port/posix-h4) | Unix-based system connected to Bluetooth module via H4 over serial port
No build server | [posix-h4-da14581](https://github.com/bluekitchen/btstack/tree/develop/port/posix-h4-da14581) | Unix-based system connected to Dialog Semiconductor DA14581 via H4 over serial port
No build server | [posix-h4-da14585](https://github.com/bluekitchen/btstack/tree/develop/port/posix-h4-da14585) | Unix-based system connected to Dialog Semiconductor DA14585 via H4 over serial port
No build server | [posix-h5](https://github.com/bluekitchen/btstack/tree/develop/port/posix-h5) | Unix-based system connected to Bluetooth module via H5 over serial port
No build server | [posix-h5-bcm](https://github.com/bluekitchen/btstack/tree/develop/port/posix-h5) | Unix-based system connected to Broadcom/Cypress Bluetooth module via H5 over serial port
[<img src="http://buildbot.bluekitchen-gmbh.com/btstack/badges/port-libusb-develop.svg">](https://buildbot.bluekitchen-gmbh.com/btstack/#/builders/port-libusb-develop) | [libusb](https://github.com/bluekitchen/btstack/tree/develop/port/libusb) | Unix-based system with dedicated USB Bluetooth dongle
No build server | [libusb-intel](https://github.com/bluekitchen/btstack/tree/develop/port/libusb-inttel) | Unix-based system with Intel Wireless 8260/8265 Controller
No build server | [windows-h4](https://github.com/bluekitchen/btstack/tree/develop/port/windows-h4) | Win32-based system connected to Bluetooth module via serial port
No build server | [windows-winusb](https://github.com/bluekitchen/btstack/tree/develop/port/windows-winusb) | Win32-based system with dedicated USB Bluetooth dongle
No build server | [windows-winusb-intel](https://github.com/bluekitchen/btstack/tree/develop/port/windows-winusb-intel) | Win32-based system with Intel Wireless 8260/8265 Controller
No build server | [raspi](https://github.com/bluekitchen/btstack/tree/develop/port/raspi) | Raspberry Pi 3 or Raspberry Pi Zero W with built-in BCM4343 Bluetooth/Wifi Controller
[<img src="http://buildbot.bluekitchen-gmbh.com/btstack/badges/port-daemon-develop.svg">](https://buildbot.bluekitchen-gmbh.com/btstack/#/builders/port-daemon-develop) | [daemon](https://github.com/bluekitchen/btstack/tree/develop/port/daemon) | TCP and Unix domain named socket client-server architecture supporting multiple clients
[<img src="http://buildbot.bluekitchen-gmbh.com/btstack/badges/java-develop.svg">](https://buildbot.bluekitchen-gmbh.com/btstack/#/builders/java-develop) | [java](https://github.com/bluekitchen/btstack/tree/develop/platform/daemon/binding/java) | Java wrapper for daemon
[<img src="http://buildbot.bluekitchen-gmbh.com/btstack/badges/port-mtk-develop.svg">](https://buildbot.bluekitchen-gmbh.com/btstack/#/builders/port-mtk-develop) | [mtk](https://github.com/bluekitchen/btstack/tree/develop/port/mtk) | daemon for rooted Android devices, based on Mediatek MT65xx processor, Java and C client-server API
[<img src="http://buildbot.bluekitchen-gmbh.com/btstack/badges/port-ios-develop.svg">](https://buildbot.bluekitchen-gmbh.com/btstack/#/builders/port-ios-develop) | [ios](https://github.com/bluekitchen/btstack/tree/develop/port/ios) | daemon for iOS jailbreak devices, C client-server API
No build server | [freertos](https://github.com/bluekitchen/btstack/tree/develop/platform/freertos) | [FreeRTOS](http://www.freertos.org): Run BTstack on a dedicated thread, not thread-safe.