Details
GNSS module based on MAX-7Q for Raspberry Pi
accurate & fast positioning with minor drifting, low power consumption, outstanding ability for anti-spoofing & anti-jamming
This is a Raspberry Pi GNSS HAT based on MAX-7Q, which supports positioning systems including GPS, GLONASS, QZSS, and SBAS. It features accurate & fast positioning with minor drifting, low power consumption, outstanding ability for anti-spoofing & anti-jamming, and so on.
By simply attaching it onto the Pi, it is fairly easy to enable GNSS capability for your Raspberry Pi.
- Supports GPS/QZSS, GLONASS positioning systems
- A-GNSS (Assisted GNSS) support, reducing the first positioning time when powered up, improving the acquisition sensitivity
- Outstanding ability for anti-spoofing & anti-jamming, supports geo-fencing
- Supports U-Center, an easy way to config the module
- Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards, Jetson Nano
- Onboard USB TO UART converter CP2102 for serial debugging
- Breakouts the module's UART and I2C interface, for connecting with host boards like Arduino/STM32
- Baudrate range: 4800~921600bps (9600bps by default)
- Supports DDC (I2C compliant) interface: up to 400KHz (max)
- Onboard battery holder, supports ML1220 rechargeable cell, for preserving ephemeris information and hot starts
- 4x LEDs for indicating the module operating status
- Comes with development resources and manual (examples for Raspberry Pi/Jetson Nano/Arduino/STM32)
| GNSS Specifications | |||
|---|---|---|---|
| MAX-7Q | GPS | GLONASS | |
| Frequency band | 56x u-blox 7 engine channels GPS/QZSS L1C/A, GLONASS L1 FDMA, SBAS (WAAS, EGNOS, MSAS) |
||
| Horizontal positioning accuracy | Autonomous | 2.5m CEP | 4.0m CEP |
| SBAS | 2.0m CEP | - | |
| Max navigation update rate | 10Hz | 10Hz | |
| Time-To-First-Fix | Cold starts | 29s | 30s |
| Warm starts | 28s | 25s | |
| Hot starts | 1s | 1s | |
| Aided starts | 5s | - | |
| Sensitivity | Tracking and navigating | -161 dBm | -158 dBm |
| Re-acquisition | -160 dBm | -156 dBm | |
| Cold starts | -148 dBm | -140 dBm | |
| Warm starts | -148 dBm | -145 dBm | |
| Hot starts | -156 dBm | -156 dBm | |
| PPS accuracy | RMS | 30ns | 50ns |
| 99% | 60ns | 100ns | |
| PPS frequency | 0.25Hz…10MHz (configurable) | ||
| Velocity accuracy | 0.1m/s | ||
| Heading accuracy | 0.5 degree | ||
| Operational limits | Acceleration (max): 4g | ||
| Altitude (max): 50000m | |||
| Velocity (max): 500m/s | |||
| Other Specifications | |||
| Communication interface | UART (4800~921600bps, 9600bps by default), I2C (max 400KHz) | ||
| Update rate | 1Hz (default), 10Hz (max) | ||
| Protocol | NMEA 0183 Version 2.3 (V3.0 compatible), UBX, RTCM 2.3 | ||
| Power supply | 5V | ||
| Overall current | <37mA@5V (Continue mode) | ||
| Module current | 17.5mA@3V (Continue mode, tracking status) | ||
| Operating temperature | -40℃ ~ 85℃ | ||
| Dimensions | 65mm × 30.5mm | ||
Compatible with Raspberry Pi series boards, Jetson Nano
Supports GPS/QZSS, GLONASS
Augment system is aimed at improving the accuracy, completeness, reliability, and availability of positioning and navigation
Supports augment systems including SBAS and QZSS
High sensitivity of single GNSS receiver, outstanding ability for anti-spoofing & anti-jamming
an easy way to config the module
Ideal for fleet management, asset tracking, security systems, industrial PDA, GIS app, etc.
- MAX-7Q module
- TXS0108EPWR voltage translator
- RT9193-33 power chip
- CP2102 USB TO UART converter
- Status indicators
RXD/TXD: UART TX/RX indicator
PPS: GPS status indicator
PWR: power indicator - Battery holder
supports ML1220 rechargeable cell, for preserving ephemeris information and hot starts
- Raspberry Pi GPIO header
for connecting with Raspberry Pi - UART, I2C interface
for connecting with other MCUs - USB TO UART port
- GNSS antenna connector
- UART selection jumper
A: control the MAX-7Q through USB TO UART
B: control the MAX-7Q through Raspberry Pi
C: access Raspberry Pi through USB TO UART
* Resources for different product may vary, please check the wiki page to confirm the actually provided resources.
Weight: 0.132 kg
Quick Overview
- MAX-7Q GNSS HAT x1
- GPS External Antenna (B) x1
- USB-A to Micro-B cable x1
- RPi screws pack (2pcs) x1
- 2x20PIN female header x1
