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Attention! The sale of the product has been completed. Check thenew version. |
Description
Overlay for Arduino with SIM908 chip, which allows you to send text messages, create GSM network connections, transfer GPRS data and read GPS position. It communicates through serial interface UART (RX, TX) via AT commands. The board is equipped with: SIM card connector, microphone, speaker, and miniUSB connector. The kit also includes aGPSantenna,9V / 2A power supply and miniUSB cable.
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Detailed description of the module connection is available in the user guide. |
Connection
The chip works with Arduino tiles, e.g. Uno version.Built-in USB - UART converter, allows for direct communication with the computer via AT commands using the includedminiUSB cableand serial port terminal.
What is on the board?
- Headphone jack input: output of the second analog voice channel SIM908
- SMA connector for GSM antenna
- Pins to connect with Arduino
- GSM antenna connector
- SIM908 control interface
- GPS antenna connector
- USB-UART interface
- Loudspeaker: output of the first analogue voice channel SIM908
- Reset Arduino
- SIM908 chip
- SIM908 chip LED: when slowly blinking, the network connection has been successful
- Power supply LED
- Microphone: input of the first analogue voice channel SIM908
- SIM card slot
- CP2102: USB-UART converter
- LEDs for UART transmission
- Power switch
- Power connection from 6 V to 9 V
- Motor to generate vibrations
- 74HC125 - GSM and GPS control management via serial port
- NCP2890 power amplifier: amplifies the first analogue voice channel SIM908
- MIC29302
- SIM908 analog output jumper (positive): open when NCP2890 is on
- SIM908 analog output jumper (negative): open when NCP2890 is on
- NCP2890 jacks:
- Compact EN and VBAT: on
- Compact EN and GND: system off
Specification
- Power supply voltage:
- GSM: 3.2 to 4.8 V
- GPS: 3.0 to 4.5 V
- UART communication
- Support for AT commands
- Built-in USB - UART CP2102 converter with miniUSB socket (cable included)
- GSM chip SIM908
- Supported bands: 850 / 900 / 1800 / 1900 MHz
- GPRS class 10: up to 85.6 kb/s
- 42-channel GPS
- Affection: -160 dBm
- Cold start: 30 sec
- Hot start: 1 s
- Accuracy: up to 2.5 m
- Current consumption (GSM at standstill): 77 mA
- Built-in microphone and speaker
- 74HC125 - GSM and GPS control management via serial port
- Detection of ear closeness and vibrations
- Operating temperature: -40 to 85 °C
- Removing the echo effect
- The overlay works with Arduino tiles, for example Arduino Uno
- Module dimensions: 100 x53 mm
The kit includes:
- GSM/GPRS/GPS Shield
- GPS antenna
- GSM antenna
- Guest compartment
- Mounting screws
- 9 V, 2 A power supply
- MiniUSB - USB cable
Useful links |
