GPS RS232 Serial Output GPS Receiver
RS232 GPS Receiver for TAXI Dispatch System and Fleet Management
RS232 GPS Receiver
The Mulberry RS232 Serial Port GNSS GPS Mouse Receiver is a ublox M8 or MediaTek powered GNSS GPS receiving device . With standard NMEA 0183 protocol output, a complete serial data message with position, velocity and time information can be received via serial RS232 interface.
It is a cable GNSS GPS receiver module with RS232 serial interface perfectly for your fleet management and control system, like Taxi dispatch, bus wireless router with GPS, truck alarm, automatic bus stop announcement system, etc.
This little GPS unit is very easy to integrate into your car automotive camera system, like IN-CAR DVR (digital video recording ), dash cameras, rearview mirror, CCTV, etc.

RS232 Serial Port GPS Receiver
with DB9 Interface

RS232 Serial Port GPS Receiver
with PS2 Interface

RS232 Serial Port GPS Receiver
with Micro-Fit 3.0 Interface
RS232 GPS Receiver with Ublox M8 Chipset
- Chipset: u-blox M8 UBX-M8030 high performance GPS/GNSS Chips
- Position Horizontal Accuracy: 2.5m
- Over 2 million effective correlators
- Supports GPS, QZSS, GLONASS, BeiDou and is ready for Galileo
- Integrated TCXO, LNA, SAW, RTC
- 72 Channels in Search mode
- Sensitivity: -167 dBm (tracking)
- Interface: RS232 Output
- Connector: MicroFit 3.0, PS2, DB9 and more.
- GPS Protocol: NMEA 0183, version 2.3
- Support Baud Rate: 4800bps to 115200bps, 9600bps by Default
- NMEA Message: RMC, VTG, GGA, GSA, GSV, GLL
- VCC: DC Voltage 3.3V~5.5V (Typical: 5V)
- Dimension:50x39x19mm
Electrical Characteristics (Receiver)
- Chipset: ublox 8 UBX-M8030
- Frequency: GPS & QZSS L1 C/A, GLONASS L1OF, SBAS L1 C/A
- Channels: 72 Searching Channels
Sensitivity
- Tracking: -167dBm
- Reacquisition: -163dBm
- Cold start: -148dBm
Accuracy
- Position Horizontal: 2.5m
- Accuracy of Time Pulse Signal: RMS 30ns
- Velocity Accuracy: 0.1m/s
Acquisition Rate
- Hot Start: 1s
- Warm Start: 28s
- Cold Start: 29s
GPS Output Data
- Support Baud Rate: 4800bps to 115200bps, 9600bps by default
- Data Level: UART TTL/RS232/USB (customized)
- Data Protocol: NMEA-0183
- NMEA Message: RMC, VTG, GGA, GSA, GSV, GLL
- Update Rate: 1Hz-10Hz, 1Hz by default
Dynamic Condition
- Acceleration Limit: <4g
- Altitude Limit: <50,000 m
- Velocity Limit: <500 m/s
Power
- VCC: DC Voltage 3.3V~5.5V, Typical: 5V
Temperature
- Operating: -40 °C ~ +85°C
- Storage: -45°C ~ +85°C
Physical Characteristics
- Dimension: 50x39x19mm
- Connector: MicroFit 3.0, PS2, DB9 and more.
- Cable Length: 3m (customized)
- Mounting: Magnetic or Adhesive
Main Electronic Parts
- U-blox M8 GNSS IC
- Patch Antenna
- LNA, SAW filter, TCXO & RTC Crystal
Mechanical Drawing
RS232 GPS Receiver with MediaTek MT3337 Chipset
- Time to First Fix (TTFF) with the Lowest Power Consumption
- Chipset: MediaTek MT3337
- Position Horizontal Accuracy: 2.5m
- Support: GPS L1 & QZSS, SBAS: WAAS, EGNOS, MASA, GAGAN
- 66 Channels
- Sensitivity: -165 dBm
- Power Consumption: Max 45mA@3.3V
- Interface: RS232 Serial Port
- Connector: MicroFit 3.0, PS2 or DB9 and more
- GPS Protocol: Standard NMEA 0183
- Support Baud Rate: 4800bps to 115200bps, 9600bps by Default
- NMEA Message: RMC, VTG, GGA, GSA, GSV, GLL
- VCC: DC Voltage 3V~5V (Typical: 3.3V)
- Dimension:45x38x13mm
Electrical Characteristics (Receiver)
- Chipset: MediaTek MT3337
- Support: GPS L1 C/A, QZSS, SBAS: WAAS, EGNOS, MASA, GAGAN
- Channels: 66 Searching Channels, 22 Synchronous Tracking Channels
Sensitivity
- Tracking: -165dBm | Reacquisition: -156dBm | Cold start: -147dBm
Accuracy
- Position Horizontal: <2.5m CEP @-130dBm
- Acceleration Accuracy: without aid: 0.1m/s2
Acquisition Rate
- Hot Start: 1s | Warm Start: 30s | Cold Start: 35s
GPS Output Data
- Support Baud Rate: 4800bps to 115200bps, 9600bps by default
- Data Level: RS232
- Data Protocol: NMEA-0183
- NMEA Message: RMC, VTG, GGA, GSA, GSV, GLL
- Update Rate: 1Hz-10Hz, 1Hz by default
Dynamic Condition
- Acceleration Limit: <4g
- Altitude Limit: <18,000 m
- Velocity Limit: <515 m/s
Power
- VCC: DC Voltage 3.0V~5.0V, Typical: 3.3V
Temperature
- Operating: -40 °C ~ +85°C
- Storage: -45°C ~ +125°C
Physical Characteristics
- Dimension: 45x38x13mm
- Connector: Micro-Fit 3.0, PS2, DB9, etc.
- Cable Length: 1.5m (customized)
- Mounting: Magnetic or Adhesive
Main Electronic Parts
- MediaTek MTK GPS IC
- Patch Antenna
- LNA, SAW filter, TCXO, Crystal Oscillator
- 0.22F Crystal Capacitor
Mechanical Drawing
Pin No. | Pin Name I/O | Description | Remarks
RS232 Port (Micro-Fit 3.0 Connector)
- 1 RXD O Data Input (RS232 level)
- 2 VCC I Module Power Supply (Voltage range: 3.0V~5.0V)
- 3 TXD I Data output (RS232 level)
- 4 GND G Ground
RS232 Port (PS2 Connector)
- 9 VCC I Module Power Supply (Voltage range: 3.0V~5.0V)
- 3 TXD I Data output (RS232 level)
- 2 RXD O Data Input (RS232 level)
- 5 GND G Ground
RS232 Port (DB9 Connector)
- 9 VCC I Module Power Supply (Voltage range: 3.0V~5.0V)
- 3 TXD I Data output (RS232 level)
- 2 RXD O Data Input (RS232 level)
- 5 GND G Ground

Rich Shells for the GPS RS232 Available!
GPS Mouse Receiver Interface Options
The GPS receiver supports two full-duplex serial channels RS232. All serial connections are at 5.0V TTL logic levels. When different voltage level is required, use appropriate level shifters. The baud rate of both serial ports is fully programmable. The data format is fixed: X, N, 8, 1, i.e. X baud rate, no parity, eight data bits and one stop bit, no other data formats are supported, LSB is sent first. The module’s default baud rate is set up to 9600bps, however, the user can change the default baud rate to any value from 4800 bps to 38400kbps. RS232 is used for booting and NMEA interface.
The GPS receiver supports two full duplex serial channels UART. All serial connections are at 3V CMOS logic levels. When different voltage level is required, use appropriate level shifters. The baud rate of both serial ports are fully programmable. The data format is however fixed: X, N, 8, 1, i.e. X baud rate, no parity, eight data bits and one stop bit, no other data formats are supported, LSB is sent first. The modules default baud rate is set up to 9600bps, however, the user can change the default baud rate to any value from 4800 bps to 115kbps. UART port can be used for firmware upgrade, NMEA output and ublox proprietary commands input.
The GPS receiver module supports single-chip USB to UART bridge,It is a USB 2.0 compliant full-speed device with integrated transceiver. Before using it, please install the appropriate USB driver.
Wanna A Customized RS232 GPS Receiver?
GPS RS232 Mouse Applications

GPS Receiver RS232 for TAXI Dispatch and Metering
Our GPS RS232 receiver can be used for your Taxi dispatch system. You can monitor all the taxis at any time on your Taxi monitoring terminal.
The system provides taxi positioning, monitoring, security, remote control, track recording/replay, short message scheduling, voice scheduling, data analysis and statistical functions.
Equipped with our GPS receiver, information such as where the taxi is going and how fast it is going can be monitored in real-time. Meanwhile, an alarm button is installed in the taxi. When an unexpected event encountered, the driver can press the button, and the location of the taxi and other data will be automatically displayed at your monitoring terminal so that the safety of the driver can be protected.
It improves your operational efficiency and also provides efficient hailing services to the public.

GPS RS232 for Fleet Management and Control System
Ensure vehicle safety and improve the daily efficiency of the fleet is critical for fleet management companies, like YOU.
IoT’s fleet management system is built using a combination of GPS positioning, 3G/4G wireless communication, and Internet technologies. The whole system can be composed of terminal monitoring and communication hardware and remote login software system.
Each vehicle is equipped with our GPS RS232 Receiver, capable of real-time satellite positioning and motion tracking of the current position. The terminal monitoring devices on the vehicle are even able to use cameras, timers, temperature sensors, fuel level sensors, etc. to obtain more information about the status of the vehicle. The data from these measurements are then transmitted to the web server via a wireless network so that YOU can log in to the system at any time to get the data.

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