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Product description: 3G/GSM module - u-GSM shield v2.19 UG95E
Module compatible with Arduino, Raspberry Pi (version 3B+, 3B, 2B, B+ and A+) and BeagleBone Black, which enables 3G / GSM communication. It allows to make voice calls and send SMS messages. On the board there are: SIM card connector, charging module for Li-Pol / Li-Ion batteries and RESET button. It has connectors for GSM u.FL antennas.
Component layout on the u-GSM shield board.
3G/GSM module pinouts - u-GSM shield
| Pin | Description |
|---|---|
| STS |
Status pinout. |
| RI | Ring Indicator output. |
| GND | System ground. |
| VCC | 4V input/output, internally connected to Li-Pol + pad. |
| VIN | 5V input for Li-Pol charger. |
| VUSB | 5V output. |
| ENA | Activation pin, activated by a high state. |
| RST | Reset, high state activated. |
| TX | Communication via serial interface. |
| RX . | Communication via serial interface. |
Connecting 3G/GSM module to Arduino
System works with Arduino Uno using following pins:
| Pin | Arduino | Description |
|---|---|---|
| GSM RX | D3 | Communication via serial interface. |
| GSM TX | D2 | Communication via serial interface. |
| RESET | D6 | Reset of the GSM chip. |
| Ena | D7 | Control voltage of GSM chip (On/Off). |
| VIN (5 V LiPol) | 5 V |
5 V power supply. Details of connection in case of LiPol batteries are available in manufacturer's manual. |
|
GND |
GND | System ground. |
|
STATUS |
D5 | Status pinout. |
Connecting 3G/GSM module to Raspberry Pi
The module has special breakout connectors that allow you to plug directly into the GPIO connectors of your Raspberry Pi or BeagleBone Black.
In order to run the module with Raspberry Pi you need to make the following connections:
| Pin | RPi | Description |
|---|---|---|
| GSM RX | 10 |
Communication via serial interface, (not connected for USB communication). |
| GSM TX | 08 |
Communication via serial interface (not connected when using USB). |
| RESET | 18 | GSM system reset. |
| ON / OFF | 16 | GSM system power voltage control (On/Off). |
| VIN (5 V LiPol) | 02/04 | Supply voltage 5 V. |
|
GND |
04/14 | GND of the chip. |
| STATUS | 12 | Status pinout. |
|
Detailed description of the module can be found in the User Manual in parts one and two and on the manufacturer's website. |
3G/GSM module specification - uGSM shield
- Controller: Quectel UG95E
- Supported standards: 3G / GSM / UMTS / HSPA
- Frequencies:
- UMTS: 900 / 2100 MHz
- GSM: 900 / 1800 MHz
- Speeds:
- HSUPA / HSPDA: up to 5.76 Mbps / 7.2 Mbps
- UMTS: up to 384 Kbps (DL)
- EDGE/GPRS: up to max. 296 Kb/s (DL), max. 236.8 Kb/s (UL) / max. 107 Kb/s (DL), max. 85.6 Kb/s (UL)
- Nano SIM / micro SIM connector
- Antenna connectors u.FL
- Built-in USB-UART converter (USB connector can be used to power the module)
- Automatic selection of logic levels from 3 V to 5 V
- Reset button
- Works with Arduino, Raspberry Pi and BeagleBone Black along with manufacturer's sample codes
- Two mounting holes with diameter: 2.5mm
- Board dimensions: 45 x 27 mm
