SIM800C GSM GPRS Module

Description

SIM800C GSM GPRS Module

This GSM/GPRS developemnt board is based on SIM800C chip supporting bluetooth function and AT command control via the serial prot. On-board SIM card slot and support 850/900/1800/1900MHz quad band can be used worldwide. It is equipped with 5V/3.3V ligic 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)

Description:

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

Getting started with the SIM800C GSM GPRS Module with Bluetooth and TTS for Arduino

This GSM/GPRS developemnt 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

Hardware required

• Arduino uno
• GSM SIM800 with bluetooth
• Breadboard
• Jumper wires
• Lithium battery 3.7v

Connecting the Hardware

GSM SIM800C                                Arduino Uno

VBAT                                                          + of battery

GND                                                            – of battery

PWX                                                             GND

Tx                                                                   D3

Rx                                                                   D2