Silicon Labs introduced a fully integrated, pre-certified Bluetooth Smart module solution that gives developers a fast path to low-power wireless connectivity for the Internet of Things (IoT).
The BGM111 is the first in a family of advanced Blue Gecko modules from the company delivering extensive integration, flexibility, energy efficiency and toolchain support with an easy migration path to Blue Gecko system-on-chip (SoC) solutions.
The module simplifies design for a wide array of applications including smartphone accessories, beacons, connected home devices, health and fitness trackers, personal medical devices, automotive diagnostics, industrial sensors and point-of-sale terminals. It comes pre-loaded with the Bluegiga Bluetooth 4.1-compliant software stack and profiles, and are field-upgradable using device firmware upgrades to Bluetooth 4.2 and beyond.
The BGM111 is supported by Silicon Labs’ wireless SDK, which gives developers the flexibility to use either a host or fully standalone operation through the easy-to-use Bluegiga BGScript scripting language. Using a familiar BASIC-like syntax, BGScript enables developers to create Bluetooth applications quickly without using external MCUs to run the application logic.
All application code can be executed on the module, eliminating the need for an external MCU, which helps reduce cost and board space and speeds time to market. Bluetooth Smart application profiles and examples are also available to streamline development.
The BGM111 modules incorporate all features of Blue Gecko SoCs and come with 256 KB Flash and 32 KB RAM, providing ample memory for onboard applications. The SoC’s built-in hardware cryptographic accelerator offers the assurance of a future-proof roadmap for evolving security requirements. Flexible hardware interfaces enable easy connection to a variety of peripherals and sensors. An integrated, high-efficiency antenna makes RF design and operation consistent and straightforward for developers of all skill levels.
Ultra-low power operation enables Bluetooth Smart systems to be powered from a standard 3 V coin cell battery or two AAA batteries. The SoC’s integrated ARM Cortex-M4 processor-based MCU consumes 59 μA/MHz in run mode and only 1,7 μA down to 200 nA in sleep mode. The on-chip transceiver consumes only 7,5 mA in peak receive mode and 8,2 mA @ 0 dBm in peak transmit mode. The transceiver also provides flexible transmit power, configurable up to +8 dBm and supporting a line-of-sight RF range of up to 200 metres.
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