Unit GPS
Description
GPS is an M5Stack Unit that integrates a AT6558 navigation chip and a MAX2659 amplification chip which is used for amplifying the antenna signal.
AT6558 is an high performance chip that supports many types of satellite navigation systems, able to receive satellite signals on 56 channels GNSS signal from 6 satellite navigation system, joint location, navigation, timing and more.
The module is able to obtain accurate global location information, quick and accurate positioning for anywhere in the city, in the canyon, under the overhead and inside the car.
The module can be widely used in vehicle monitoring, bus reporting, car navigation, onboard navigation, notebook navigation and other products.
You can plug it into port C on M5core via GROVE cable, which is a standard UART interface.
UART settings :
- Baudrate(default: 9600bps)
- Start bits(1 bit)
- Stop bits(1 bit)
- Parity(no)
Features
- Support single system positioning of BDS/GPS satellite navigation systems, or multi-system joint positioning in any combination
- Support D-GNSS differential positioning
- Two Lego-compatible holes
Includes
- 1x GPS Unit
- 1x Grove Cable
Applications
- Vehicle positioning and navigation
- Smart law enforcement positioning
Specifications
| Resources | Parameter |
|---|---|
| Positioning accuracy | 2.5m |
| Channel | 56 |
| Positioning update frequency | 1-10Hz |
| Maximum speed | 515m/s |
| Maximum acceleration | <= 4g |
| Sensitivity | Tracking: -162dBm,Capture: -148dBm,Cold start: -146dBm |
| Start Time | Cold start: 35 seconds,Warm start: 32 seconds,Hot start: 1 second |
| Operating temperature | -40°C - 85°C |
| Net weight | 13g |
| Gross weight | 26g |
| Product Size | 48*24*8mm |
| Package Size | 136 * 92 * 13mm |
EasyLoader
- After downloading the software, double-click to run the application, connect the M5 device to the computer through the data cable, select the port parameters, click "Burn" to start burning. (For M5StickC burning, please Set the baud rate to 750000 or 115200)
PinMap
| M5Core(GROVE C) | U2RXD(GPIO16) | U2TXD(GPIO17) | 5V | GND |
|---|---|---|---|---|
| GPS Unit | Signal Transmitter(TXD) | Signal Receiver(RXD) | 5V | GND |
| M5Core2(PORT C) | U2RXD(GPIO13) | U2TXD(GPIO14) | 5V | GND |
|---|---|---|---|---|
| GPS Unit | Signal Transmitter (TXD) | Signal Receiver (RXD) | 5V | GND |
Schematic
Related Links
Model Size
Example
Arduino
To get the complete code, please click here
UIFlow
Video
- UIFlow2.0 GPS Unit
Usage
Analysis:
$GNRMC,063012.000,A,2258.11953,N,11395.35722,E,0.69,171.74,240419,,,A*7A
Indicates that the positioning information is UTC time is 06:30:12, north latitude 22.58119°, east longitude 113.95357°, date is April 24, 2019
