SIM 800C GSM MDL ARD

Description

This GSM/GPRS development board is based on SIM800C chip supporting Bluetooth function and AT command control via the serial port On-board SIM card slot and support 850/900/1800/1900MHz quad band can be used worldwide. It is equipped with 5V/3.3V logic converter circuit compatible with most MCU breakout board to obtain the SMS and TTS function. Chip: SIM800C Band: 850/900/1800/1900MHz GPRS multi-slot class: 12/10 GPRS mobile station class: B Compliant to GSM phase 2/2+ – Class 4 (2 W @ 850/900 MHz) – Class 1 (1 W @ 1800/1900MHz) Control via AT commands (3GPP TS 27.007, 27.005 and SIMCOM enhanced AT Commands) Board Size: 30.73 X 26.56mm/1.21 X 1.05inch(L*W) Features 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 the 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 This GSM/GPRS development board is based on SIM800C chip supporting Bluetooth function and AT command control via the serial pot. On-board SIM card slot and support 850/900/1800/1900MHz quad band can be used worldwide. 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. GND: 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 PWX: This pin can turn down or turn off the module GND: power supply ground VBAT: lithium battery input pin, 3.3v-4.4v