Raspberry Pi GSM
Overview
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Raspberry PI SIM800 GSM/GPRS Add-on V2.0 is customized for Raspberry Pi interface based on SIM800 quad-band GSM/GPRS/BT module. AT commands can be sent via the serial port on Raspberry Pi, thus functions such as dialing and answering calls, sending and receiving messages and surfing on line can be realized. Moreover, the module supports powering-on and resetting via software.
Feature
- Quad-Band 850/ 900/ 1800/ 1900 MHz
- GPRS multislot class 12
- Operation temperature: -40°C to +85 °C
- Stackable
Specification and Board Specification
| PCB size | 85mm X 56mm X 1.6mm |
| Operation Level | Digital 3.3V DC |
| Interface | UART |
| Baud rate | 9600(default) |
Indicators and Key Function
- PWR - Power: When there is normal supply to the board, the indicator keeps on.
- 8STATUS - SIM800 status: When SIM800 works normally, the indicator keeps on.
- NET - SIM800 network status: used to indicate network status, the working status of the indicator is as below:
| Status | SIM800 behavior |
| OFF | SIM800 does not work |
| 64ms on/800ms off | SIM800 does not find network |
| 64ms on/3000ms off | SIM800 registers the network |
| 64ms on/300ms off | GPRS communicates |
- PWRKEY - SIM800 powering-on key: Keep pressing the key for more than 1 second, SIM800 will be powered on; keep pressing the key for more than 1 second after the board is powered on, SIM800 will be powered off.
- RST - SIM800 resetting key: press the key, SIM800 will be reset.
Extension
- External POWER IN - If SIM800 will drop off while working, please connect a external at least 5V/2A power supply to this micro usb.
- Upgrade Port - This is only for upgrading firmware of SIM800.
Documents
- The module does not support hot swapping.
Download
- File:IM150720001-Raspberry PI GSM Add-on V2.0-schematic.pdf
- More documentation please see on this page category:SIMCOM
- Useful Link - File:Library Raspberry sim900.zip
Pinmap
| Raspberry PI Pin N.O. | Pin name | Description |
| 1 | 3.3V | |
| 2 | 5V | |
| 3 | GPIO02 | SDA |
| 4 | 5V | |
| 5 | GPIO03 | SCL |
| 6 | GND | |
| 7 | GPIO04 | |
| 8 | GPIO14 | GSM_DIN |
| 9 | GND | |
| 10 | GPIO15 | GSM_DOUT |
| 11 | GPIO17 | SIM800-PWRKEY |
| 12 | GPIO18 | SIM800-RST |
| 13 | GPIO27 | |
| 14 | GND | |
| 15 | GPIO22 | |
| 16 | GPIO23 | |
| 17 | 3.3V | |
| 18 | GPIO24 | |
| 19 | GPIO10 | SPI_MOSI |
| 20 | GND |
| Raspberry PI Pin N.O. | Pin name | Description |
| 21 | GPIO09 | SPI_MISO |
| 22 | GPIO25 | |
| 23 | GPIO11 | SPI_SCK |
| 24 | GPIO08 | SPI_CE0 |
| 25 | GND | |
| 26 | GPIO07 | SPI_CE1 |
| 27 | ID_SD | |
| 28 | ID_SC | |
| 29 | GPIO05 | |
| 30 | GND | |
| 31 | GPIO06 | |
| 32 | GPIO12 | |
| 33 | GPIO13 | |
| 34 | GND | |
| 35 | GPIO19 | |
| 36 | GPIO16 | |
| 37 | GPIO26 | |
| 38 | GPIO20 | |
| 39 | GND | |
| 40 | GPIO21 |