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Pin No. | Pin name | I/O | Description | Remark |
1 | VCC | P | Power Supply | Voltage range 3.0V~5.0V |
2 | TXD | O | UART Serial Data Output | |
3 | RXD | I | UART Serial Data Input | |
4 | GND | G | Ground |
Module performance | ||
Model | WT-2828-AK-R232-U-1.2M | |
Receiver type | GPS/QZSS L1 GLONASS L1 BeiDou B1 | |
Agreement | NMEA-0183 compliant protocol or custom protocol | |
NMEA messages | RMC,VTG,GGA,GSA,GSV,GLL | |
Available baud rate | 4800bps~921600bps(default 9600bps) | |
Channel | 56 | |
Sensitivity | Tracking: -162dbm Capture: -148dbm Cold start -148dbm | |
Cold start | Average 29 seconds | |
Hot start | Average 1 seconds | |
Accuracy | Horizontal accuracy 2.5m CEP, Velocity: 0.1 m/s Timepulse signal: RMS 30 ns | |
Max Height | 18000 m | |
Max Speed | 500 m/s | |
Max Acceleration | ≦ 4G | |
Regeneration frequency | 1Hz -10 Hz | |
Positioning mode | A-GNSS | |
Communication type | R232 level | |
Antenna | Built-in ceramic antenna | |
Connector | ||
Connector type | USB connector | |
Physical property | ||
Type | 4 Pin | |
Size | 38mm*49mm*16mm (+/- 0.5mm) | |
Wire length | 1.2m (customizable) | |
Fixed mode | 3M adhesive or magnet (default 3M adhesive) | |
Power supply | ||
Voltage | 3V~5V | |
Power Consume | 25mA@3.3V | |
Oerating Environment | ||
Humidity range | 5% to 95% non-condensing | |
Working Temperature | -40℃ to 85℃ | |
Storage Temperature | -40℃ to 85℃ | |






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