LILYGO TTGO T-Beam V1.1 LoRa32 868Mhz

Product Features
    ESP32
    Lastest ESP32 Version: REV1
    WIFI
    Bluetooth
    8MB PSRAM
    4MB Flash
    3D Antenna
    LORA

Product Description
    Working voltage: 1.8~3.7v
    Acceptable current: 10~14mA
    Transmit current:
        120mA@+20dBm
        90mA@+17dBm
        29mA@+13dBm
    Operating frequency: 433/470MHz(433HMz version) /868M/915M(868MHz version)
    Transmit power: +20dBm
    Receive sensitivity :-139dBm@LoRa &62.5Khz&SF=12&146bps
        -136dBm@LoRa &125Khz&SF=12&293bps
        -118dBm@LoRa &125Khz&SF=6&9380bps
        -123dBm@FSK&5Khz&1.2Kbps
    Frequency error: +/-15KHz
    FIFO space : 64Byte
    Data rate : 1.2K~300Kbps@FSK
                       0.018K~37.5Kbps@LoRa        
    Modulation Mode : FSK,GFSK,MSK,GMSK,LoRa TM，OOK
    Interface form : SPI
    Sleep current : 0.2uA@SLEEP
                           1.5uA@IDLE
    Operating temperature : -40℃- +85℃
    Digital RSSI function
    Automatic frequency correction
    Automatic gain control
    Low voltage detection
    Fast wake-up and frequency hopping
    Highly configurable data packet handler

GPS
    GPS modules NEO-6M, 3V-5V power supply Universal
    Destined module with ceramic antenna, signal super
    Save the configuration parameter data EEPROM Down
    With data backup battery
    There are LED signal indicator
    Default Baud Rate: 9600

Power
    Power Supply Input USB 5V/1A
    Charging current 500mA
    Battery Input  3.7-4.2V
    Charge IC AXP192

OLED Description:
    1.Size:  0.96 inch
    2.High resolution: 128 * 64
    3.Color:  white
    4.Viewing angle:  > 160 °
    5.Driver IC:  SSD1306
    6.Working temperature:  -30  celcius ~ 80  celcius
    7.Module volume (generous):  27.0MM * 27.0MM * 4.1MM
    8.Supports many control chip:  Fully compatible with Arduino, 51 series, MSP430        series,STM32/2, CSR chip, etc.  (a lot of routines for reference)
    9.Wide voltage support: without any modification, directly supports 3.3V ~ 5V DC
    10.Ultra-low power consumption: Normal operation Is 0.04W
    11.IO port occupies minimal display: The IIC communication,as long as the two IO ports
 
More information:
    https://github.com/lyusupov/SoftRF/wiki/Prime-Edition-MkII
    https://github.com/LilyGO/SoftRF
    https://github.com/Xinyuan-LilyGO/LilyGO-T-Beam