Initially aimed at u-blox's ODIN-W2 multiradio module, the availability of the ARM mbed development environment, tools and libraries, allows embedded developers access to the wireless module's ARM Cortex-M4 based microcontroller. This means that an extremely broad range of sensor and actuator-based IoT designs can be implemented on a single compact certified wireless module. Without the need for an external host, MCU designers can not only save significant bill of materials cost, development resources and specialist wireless design capabilities, but also keep the board footprint to an absolute minimum. In addition, the module's open standard approach ensures ease of IoT connectivity, yet maintains type approval certification by restricting access to the communications stacks.
The ODIN-W2 module measures 14.8 x 22.3 mm, and is capable of multiple concurrent dual-band Wi-Fi and dual-mode Classic and Bluetooth Low Energy (BLE) connectivity. The module features the core Bluetooth and Wi-Fi stacks, and the Wi-Fi function can operate in either infrastructure (STA) or access point (AP) modes. Peripheral support for connecting sensors and other devices includes GPIO, an ADC and DAC together with SPI, I ²C, UART and CAN. In addition to supporting multiple communication standards, the mbed development environment provides built-in security features such as secure boot, hardware-enforced secure domains and SSL/TLD capability.