The ultra small ANNA-B4 module of u-blox is a high-performance BLE module in a very small package. The nRF52833 chip based modules of Nordic Semiconductor have an independent version of open CPU (ANNA-B402) or u-connectXpress (ANNA-B412). The SiP module size is only 6.5 mm x 6.5 mm, including the antenna.
Block diagram
The ANNA-B4 module has an internal chip antenna for easy integration and an antenna pin for the selection of external antennas. This series of products has obtained global certification and can be used with internal or external antennas. This reduces time, cost and effort for customers to integrate ANNA-B4 into their designs. To ensure operation in harsh professional environment, the temperature range of the module is extended to - 40 ° C to+105 ° C.
Pin definition
ANNA-B402 has Bluetooth 5.1 and embedded Arm with FPU Cortex - M4 microcontroller and state of the art power performance. It has 512 kB Flash and 128 kB RAM, and can use the open CPU architecture and Nordic Semiconductor SDK to develop advanced applications. UART, USB, high-speed SPI, I ² C、I ² Wired interfaces such as S and GPIO can be used to connect to peripheral components.
The ANNA-B402 supports Bluetooth DF, including Angle of Arrival and Angle of Leaving. This makes positioning more accurate than using only the received signal strength. The module uses Bluetooth to provide extended communication range or more reliable connection. In addition, Wirepas Massive mesh stack or Lumenradio MiraOS can be used to form large-scale industrial mesh networks.
In addition to Bluetooth's low power consumption, it also provides support for Zigbee and Thread protocols, as well as NFC. Specific applications include intelligent lighting, asset tracking, indoor positioning, sensors, wearable devices and wireless connectivity and configurable devices.
The ANNA-B412 module is delivered together with the u-connectXpress software, which provides low energy serial port service for u-blox Bluetooth, GATT client and server, beacon, Bluetooth remote, NFC ™ And the support of peripheral devices and central roles at the same time. The u-blox u-connectXpress software allows the host to easily configure the connection on the UART interface using the AT command. Because of secure boot, the module provides top-level security, which ensures that the module boots only with the authenticated u-connectXpress software.
Seven-inch reel for ANNA-B4 modules
