Product Features
●System on Module(SOM) base on Nordic nRF52811
●Bluetooth® 5.1, IEEE 802.15.4-2006, 2.4 GHz transceiver
    -97dBm sensitivity in 1 Mbps Bluetooth® low energy mode
    -104dBm sensitivity in 125 kbps Bluetooth® low energy mode (long range)
    -20 to +4dBm TX power, configurable in 4 dB steps
●On-air compatible with nRF52, nRF51, nRF24L, and nRF24AP Series
●Supported data rates:
    Bluetooth® 5.1: 2 Mbps, 1 Mbps, 500 kbps, and 125 kbps
    IEEE 802.15.4-2006: 250 kbps
    Proprietary 2.4 GHz: 2 Mbps, 1 Mbps
    Angle-of-arrival (AoA) and angle-of-departure (AoD) direction finding using Bluetooth®
    Single-ended antenna output (on-chip balun)
    4.6 mA peak current in TX (0dBm)
    4.6 mA peak current in RX
    RSSI (1 dB resolution)
●ARM® Cortex®-M4 32-bit processor, 64 MHz
●Flexible power management
    1.7 V to 3.6 V supply voltage range
    Fully automatic LDO and DC/DC regulator system
    Fast wake-up using 64 MHz internal oscillator
    0.3 μA at 3 V in System OFF mode, no RAM retention
    0.5 μA at 3 V in System OFF mode with full 24 kB RAM retention
    1.5 μA at 3 V in System ON mode, with full 24 kB RAM retention, wake on RTC
    1.4 μA at 3 V in System ON mode, no RAM retention, wake on RTC
●192 kB flash and 24 kB RAM
●Nordic SoftDevice ready
●Support for concurrent multi-protocol
●12-bit, 200 ksps ADC - 8 configurable channels with programmable gain
●64 level comparator， Temperature sensor
●Up to 32 general purpose I/O pins
●4-channel pulse width modulator (PWM) unit with EasyDMA
●Digital microphone interface (PDM)
●3x 32-bit timer with counter mode，2x real-time counter (RTC)
●2x SPI master/slave with EasyDMA，I2C compatible 2-wire master/slave
●UART (CTS/RTS) with EasyDMA，Programmable peripheral interconnect (PPI)
●Single crystal operation
●Dimensions: 24.3 x 17.5 x1.8mm with Antenna，1.27mm pin pitch.