1. The BLE52840 module is designed based on nRF528402. The nRF52840 is fully multi-protocol capable with full protocol concurrency. It has protocol support for Bluetooth 5, Bluetooth mesh, Thread,
Zigbee, 802.15.4, ANT and 2.4 GHz proprietary stacks.
3. The nRF52840 is built around the 32-bit ARM® Cortex™-M4 CPU with
floating point unit running at 64 MHz.
4. It has NFC-A Tag for use in simplified pairing and payment solutions.
5. The ARM TrustZone® CryptoCell cryptographic unit is included
on-chip and brings an extensive range of cryptographic options that
execute highly efficiently independent of the CPU.
6. It has numerous digital peripherals and interfaces such as high speed SPI and QSPI for interfacing to
external flash and displays, PDM and I2S for digital microphones
and audio, and a full speed USB device for data transfer and power
supply for battery recharging.
7. Exceptionally low energy consumption is achieved using a sophisticated on-chip adaptive
power management system.
What is Bluetooth?
Bluetooth is a universal radio interface in the 2.45GHz frequency
band that enables portable electronic devices to connect and
communicate wirelessly via short-range, ad hoc networks. Each unit
can simultaneously communicate with up to sever other units per
piconet. Moreover, each unit can simultaneously belong to several
piconets.
