Product Features 
●Nordic nRF52833 with ARM Cortex M4F
  Multiprotocol support :
●Bluetooth 5.1, ANT/ANT+, and 2.4GHzproprietary, 802.15.4 Thread and Zigbee, .
●Bluetooth 5.1 Direction Finding AOA/AOD
●Bluetooth 5: 2 /1Mbps, 500 kbps, 125 kbps
●IEEE 802.15.4-2006: 250 kbps
●Proprietary 2.4 GHz: 2 Mbps, 1 Mbps
●Integrated DC-DC converter
●Serial Wire Debug (SWD)
●Nordic SoftDevice Ready
●Over-the-Air (OTA) firmware update
●Flash/RAM: 512KB/128KB.
●40 General purpose I/O pins
●15 level low-power comparator with wake-upfrom System OFF mode
●Two 2-wire Master/Slave (I2C compatible)
●I2S audio interface
●12 bit/200KSPS ADC
●High-speed 32 MHz SPI
●4 SPI Master/ 3 SPI Slave)
●2 UART (with CTS/RTS and DMA)
●4x 4-channel PWM unit with EasyDMA
●USB 2.0 full speed (12 Mbps) controller
●20 channel CPU independent Programmable
●Peripheral Interconnect (PPI).
●Quadrature Demodulator (QDEC)
●128-bit AES HW encryption
●5 x 32 bits timers, 3 xReal Time Counters (RTC)
●NFC-A tag interface for OOB pairing
●TX power: +8dBm to-20dBm in 4 dB steps.
●PCB antenna or IPX Antenna
●Sizes: 24.3x17.5 x1.8mm
●DC/DC on board
●No external components required
●Operation voltage: 1.7V to 5.5V