BC20

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Specifications

  • Hardware version - BC20NA-04-STD
  • Band B5 B8
  • Location supports GPS Beidou SBAS

Dimension Schematic

Pin Definition:

  • (via logic shifter) DTX / DRX: Debug TXD and RXD
  • (via logic shifter) TXD / RXD: UART Serial TXD and RXD (AT commands)
  • ATX / ARX: RXD and TXD AUX
  • (via logic shifter) 1PPS
  • (via logic shifter) RI / DCD / RTS / CTS: RS-232 Pins
  • DM / DP: USB Port
  • VUSB3 = VDD USB 3.3V
  • USBM = USB_MODE
  • ADC
  • MKEY MRST MINT: MCU Control Boot pin, Reset pin, Interrupt pin
  • +5V pins need external supply / 3V3 from board LDO

Wiring

  • Connect VIN GND TXD RXD to send AT Commands

LEDs

  • Both on board LEDs may NOT work, this module is still in development, firmware may not support.


Software

Usage

Sleep Mode

  • Module should automatically enter into sleep mode periodically 60 seconds
  • Wake up by AT commands serial input
  • Please check relevants documents or contact us if you have any other questions.