This is a GPS/GPRS/GSM shield from DFRobot. This shield with a Quad-band GSM/GPRS engine works on frequencies EGSM 900MHz/DCS 1800MHz and GSM850 MHz/PCS 1900MHz. It also supports GPS technology for satellite navigation. It’s possible for your robot and control system to send messages and use the GSM network.
It is controlled via AT commands(GSM07.07 ,07.05 and SIMCOM enhanced AT Commands). And the design of this shield allows you to drive the GSM & GPS function directly with the computer and the Arduino Board. It includes a high-gain SMD antenna for GPS & GSM.
This GPS/GPRS/GSM shield uses an embedded SIM548C chip from SIMCom.Featuring an industry-standard interface and GPS function, the combination of both technologies allows goods, vehicles and people to be tracked seamlessly at any location and anytime with signal coverage.
Specification
- Power supply: 6-12v
- Low power consumption (100mA@7v – GSM mode)
- Quad-Band 850/900/18001900MHz
- GPRS multi-slot class 10
- GPRS mobile station class B
- Compliant to GSM phase 2/2+
- Class 4 (2 W @ 850/900 MHz)
- Class 1 (1 W @ 1800/1900MHz)
- Control via AT commands(GSM07.07 ,07.05 and SIMCOM enhanced AT Commands)
- Support GPS technology for satellite navigation
- Embeded high-gain SMD antennas for GPS & GSM
- Directly support 4*4 button pad
- USB/Arduino control switch
- Programmable switch for Arduino
- Buzzer for call notification
- LED indicators for power supply, network states and working modes
- Switches:
- S1 — Programming mode / Communication mode
- S2 — Controlling interface: USB / Arduino
- S3 — Power supply for GPS: ON / OFF
- Interfaces:
- Embedded SIM card holder
- Speaker & Mic Jack socket
- Size: 70x55mm
- Specifications for SMS via GSM / GPRS
- Point-to-point MO and MT
- SMS cell broadcast
- Text and PDU mode
- Specification for GPS
- Receiver 20 channels, L1 1575.42 MHz,C/A code 1,023 MHz chip rate
- Accuracy Position 10m CEP without SA/Velocity 0.1m/s, without SA/Time 1us synchronized to GPS time
- Date WGS-84
- Acquisition rate (TTFF defined at 95% offirst position local station)
- Hot start<1s, average, open sky
- Warm start<38s, average, open sky
- Cold start<42s, average, open sky
- Support AGPS
- Operating voltage 3.3V DC ±5%
- Low power consumption about 200mW at 3.3V
- Protocols:
- NMEA-0183
- SiRF binary
- RTCM SC-104
- Memory: 4 Mb flash and 1Mb SRAM
