Mynewt New RTOS for IOT

Mynewt is a new RTOS for IOT from Apache Software Foundation for devices that need to operate for long periods of time under power, memory, and storage constraints. The first connectivity stack offered is BLE 4.2.
Utilities :
- Utilities such as boot loaders, file systems, time-series data,
- JSON formatted log request/response, and more
Bluetooth Low Energy :
- High-performance networking stacks, starting with
- Bluetooth Low Energy 4.2 source code for both
- host and controller
Highly Configurable :
- Direct access to peripherals for granular control to
- better utilize the resources of the target embedded platform
Secure :
- Secure yet simple image and configuration
management
Easy to use :
- Easily composable modules and HAL
(Hardware Abstraction Layer) for portability
Supported Boards :
- nRF52 DK from Nordic Semiconductor (Cortex-M4)
- nRF51 DK from Nordic Semiconductor (Cortex-M0)
- BMD-300-EVAL-ES from Rigado (Cortex-M4)
- STM32F3DISCOVERY from ST Micro (Cortex-M4)
- STM32-E407 from Olimex (Cortex-M4)
- Arduino Zero (Cortex-M0)
- Arduino Zero Pro (Cortex-M0)
- Arduino M0 Pro (Cortex-M0)