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Attention! The product has been discontinued. Check other products in category. |
Description
The module working withArduinoandRaspberry Pi (in version 3B, 2B, B+ and A+)that provides communication in GSM and GPRS. It allows for voice calls, sending SMS messages and transfering data. On the board are: 2 connectors for SIM-cards, powering module for battery LiPol and a slot u.FL to mountan external antenna.
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The system works withArduinoandRaspberry Pi (in version 3B, 2B, B+ and A+), it has a connector u.FL to connectan external antenna. In our offer you will also findthe module with SMA connectorand specialvoltage converters. |
The distribution of elements on the board c-uGSM μ-shield.
Specification
- Driver: Quectel M95F
- Supported standards: GSM / GPRS
- Frequencies: 850 / 950 / 1800 / 1900 MHz
- Support standard DTMF
- Two connectors for SIM-cards (one connection is active at the moment)
- Antenna connector SMA
- Audio interface
- Output: 700 mV RMS
- Input: capacitor MIC
- Built-in converter USB to UART (USB connector can be used to power the module)
- Automatic selection of logic levels between 3 V to 5 V
- Buttons of modem: Power and Reset
- It works withArduinoandRaspberry Pi, along with sample codes from manufacturer
- Two mounting holes with diameter of: 2.5 mm
- Board sizes: 40 x 32 mm
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Detailed module description can be found in the user guide in partfirstandsecondand onthe website of the manufacturer. |
Pins
| Pin | Description |
|---|---|
| CTS | Input Clear to Send - details indocumentation. |
| RTS | Output Ready to Send - details indocumentation. |
| STATUS | The statuspin. |
| RI | The output Ring Indicator - details indocumentation. |
| GROUND | The groundof the system. |
| Vcc 4V IN/OUT | Input/output 4 V. When using battery, you need to include a LED (e.g., 1N14148) between the positive pole of battery and BkBat+ on the board, the anode heading the battery. |
| Vin 5V LiPol IN | Input 5 V to charge with a LiPol battery. |
| Vusb 5V OUT | The output is 5 V. |
| ON/OFF | The control of a supply voltage of the system GSM (On/Off). |
| RESET | GSM system reset. |
| TX (RXD) | Communication via the serial interface. |
| RX (TXD) | Communication via the serial interface. |
| LiPol +/- | Connecting the battery LiPol, respectively "+" and "-". |
| ANTENNA CONNECTOR UFL OR SMA | Antenna connector, depending on version of the SMA or u.FL. |
| AGND | Ground for analog audio ports. |
| SPK +/- | Output to speakers, respectively "+" and "-". |
| MIC +/- | Microphone's input, respectively " + " and "-". |
| Backup bat +/- | Backup battery, respectively "+" and "-". When using the battery, you need to include a LED (e.g., 1N14148) between the positive pole of battery and BkBat+ on the boar, the anode heading the battery. |
The connection to the Arduino
The system works with Arduino Uno using the following pins:
| Pin | Arduino | Description |
|---|---|---|
| GSM RX | D3 | Communication via the serial interface. |
| GSM TX | D2 | Communication via the serial interface. |
| RESET | D6 | GSM system reset. |
| ON / OFF | D7 | The control of a supply voltage of the system GSM (On/Off). |
| VIN (5 V LiPol) | 5 V |
Power supply 5 V. Details of the connection in the battery LiPol case, are available inthe manufacturer's manual. |
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GND |
GND | The ground of the system. |
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STATUS |
D5 | The statuspin. |
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Check out the example of project for Arduino -home alarm system! |
Connect to the Raspberry Pi
To launch the module with the Raspberry Pi, you must perform the following connections:
| Pin | RPi | Description |
|---|---|---|
| GSM RX | 10 |
Communication via the serial interface (don't work in the USB communication). |
| GSM TX | 08 |
Communication via the serial interface (don't work in the USB communication). |
| RESET | 18 | GSM system reset. |
| ON / OFF | 16 | The control of a supply voltage of the system GSM (On/Off). |
| VIN (5 V LiPol) | 02/04 | The supply voltage of 5 V. |
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GND |
04/14 | The ground of the system. |
| STATUS | 12 | The statuspin. |
Useful links |
