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This GPRS/GSM Shield is based on a SIM800C module. This board provides you a way to communicate using the GSM cell phone network (ie. SMS). The board also comes with built-in bluetooth.
Specifications:
- Quad-Band 850 / 900 / 1800 / 1900MHz - works with GSM networks in all countries across the world
- Power input: DC5V or lithium battery input (VBAT and GND).
- Supports MCU level: 5V / 3.3V for TTL logic
- Antenna: IPEX antenna interface
- Pin description:
- 5V: Power supply pin, the only input DC5V, used to power the board
- VBAT: Lithium battery input pin, 3.3v-4.4V
- PWR: This pin can turn the module on/off
- V_TTL: Access control board microcontroller core target voltage of 5V / 3.3V, 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
- SPKN: Core Audio output
- MICN: Core Audio input
- MICP: Core Audio input
- RI: Ring core pin tips
- VRTC: RTC pin external battery
- Dimensions: 31 x 27mm
Note: This is a "maker" module for developers. It is delivered without any further instructions than what you find here. |