u-bloxANNA-B412-00B
Overview
The ANNA-B412-00B is an ultra-compact Bluetooth v5.1 Low Energy module measuring only 6.5 x 6.5 mm. It is based on the Nordic nRF52833 SoC and features an Arm Cortex-M4 core with a Floating Point Unit (FPU), 512kB Flash, and 128kB RAM. This System-in-Package (SiP) module includes an integrated chip antenna and supports a wide supply voltage range from 1.7V to 3.6V.
Why Choose This Part
The module offers a superior sensitivity of -103dBm and high output power up to +8dBm for robust wireless links. Its integrated chip antenna and internal 32.768 kHz oscillator reduce external component count and PCB complexity. The internal u-connectXpress software simplifies integration by providing a high-level AT command interface for rapid development.
Applications
Key Specifications
Getting Started
Engineers can evaluate the module using the EVK-ANNA-B4 evaluation kit, which provides access to all 19 GPIOs and peripheral interfaces like USB, UART, and SPI. Development is supported through the u-blox s-center tool for AT command configuration or via the Nordic nRF Connect SDK for custom firmware development on the Cortex-M4 core.
