Description
GPS module based on MediaTek MT3333 chipset. It communicates via I2C or UART interface. The update frequency is 10 Hz, the sensitivity is165 dBm. The applied system can track up to 33 satellites. The supply voltage is 3.3 V. On board is a built-in RTC battery that provides a function of the hot start. Board also has U. FL connector to connect an external antenna.
Pins
The module communicates using the I2C or UART. On the board are two Qwiic connectors, pitch of 1 mm.
| Pin | Description |
|---|---|
| GND | The ground of the system. |
| 3.3 V | Supply voltage is 3.3 V. |
| SDA | The data line of the I2C bus. |
| SCL | The clock line of the I2C bus. |
| INT | The external interrupt, the sensor sends a signal after the finished measurement (optional pin). |
| Wake | Waking up. |
| RST | Reset. |
| PPS | One signal of the pulse per second. |
| RX | The UART receiver. |
| TX | The UART transmitter. |
Specification
- Supply voltage: 3.3 V - adjustable from 1.8 V to 3.6 V
- Current: 25 mA
- Warm / hot / cold start: 1 / 5 / 15 s
- Update frequency: from 0.1 Hz to 10 Hz - 1 Hz by default
- Positioning accuracy: up to 3 m or up to 2.5 m with SBAS on
- Satellites: searching - 99, tracking - 33
- Frequency: acquisition -148 dBm, tracking -165 dBm
- Maximum altitude: 80 km
- RTC battery: 5,5 mAh, it allows fir a hot start for 15 days without power supply.
Useful links |
