SIM800C GSM GPRS Module 5V/3.3V TTL Development Board

48.00

SIM800C is a complete Quad-band GSM/GPRS solution in a SMT type, which can be embedded in the customer applications. SIM800C supports Quad-band 850/900/1800/1900MHz, it can transmit Voice, SMS and data information with low power consumption.

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Description

Specifications

  • Power input: DC5V or received by a lithium battery input VBAT and GND.
  • Supports MCU level: 5V / 3.3V for TTL logic.
  • (Such as the common 51 and for Arduino is 5v, STM32 is the 3.3v)
  • Antenna use: IPEX antenna interfaces, you can use the version PCB antenna or antenna IPEX-SMA- peppers.

Pin Description

  • 5V: power supply pin, the only input DC5V, used to power the board.
  • V_TTL: access control board microcontroller core target voltage of 5V / 3.3V (according to its own microcontroller is much to distinguish kernel v), this pin is used to convert the GSM module board TXD and RXD for the corresponding TTL logic. ND: power supply ground
  • TXD: send pin serial port module, TTL level (not directly connected to RS232 level)
  • RXD: receive pin serial port module, TTL level (not directly connected to RS232 level)
  • DTR: Data Terminal Ready
  • SPKP: Core Audio output pin
  • SPKN: Core Audio output pin
  • MICN: Core Audio input
  • MICP: Core Audio input
  • RI: Ring core pin tips
  • VRTC: RTC pin external battery.
  • GND: power supply ground
  • PWR: This pin can turn down or turn off the module.
  • GND: power supply ground
  • VBAT: lithium battery input pin, 3.3v-4.4v