Unit GPS v1.1
Description
Unit GPS v1.1 is a GNSS global positioning and navigation unit that integrates the high-performance ATGM336H navigation module from CASIC, featuring the AT6668 chip and the signal amplification chip MAX2659, along with a built-in ceramic antenna, providing more accurate and reliable satellite positioning services. Compared to previous products, the AT6668 supports multi-frequency and multi-mode GNSS signal reception, capable of receiving signals from multiple satellite navigation systems (including GPS, BD2, BD3, GLONASS, GALILEO, and QZSS), supporting multi-system joint positioning and single-system independent positioning, with stronger anti-interference capabilities and higher positioning accuracy. In areas with weak signals, it can quickly obtain higher precision location information. This module is widely applicable to high-precision positioning scenarios such as vehicle positioning and navigation, IoT positioning devices, and more.
Features
- Supports multiple satellite navigation systems (GPS/QZSS/BD2/BD3/GAL/GLO)
- Multi-frequency and multi-system reception
- Multi-channel
- 2 x LEGO-compatible holes
- Programming platforms: Arduino, UIFlow, etc.
Includes
- 1 x Unit GPS v1.1
- 1 x HY2.0-4P Grove cable (20cm)
Applications
- Vehicle positioning and navigation
- Wearable devices
- IoT positioning devices
- Drones
- Portable devices
- Bus stop announcements
Specifications
| Specification | Parameter |
|---|---|
| SoC | AT6668 |
| Supported Satellite Systems | GPS/QZSS/BD2/BD3/GAL/GLO Frequencies: BDS：B1I+B1C GPS/QZSS/SBAS：L1 GALILEO：E1 GLONASS：R1 |
| Channels | 50 channels |
| Communication | UART communication, default 115200bps@8N1 |
| Positioning Accuracy | <1.5m (CEP50) |
| Positioning Update Rate | Up to 10Hz |
| Protocol | NMEA0183 4.1 |
| Sensitivity | Tracking: -162dBm, Acquisition: -160dBm, Cold Start: -148dBm |
| Start Time | Cold Start: 23 seconds, Hot Start: 1 second |
| Power Consumption | DC5V/31.64mA |
| Product Dimensions | 48 x 24 x 8mm |
| Package Dimensions | 136 x 92 x 9mm |
| Product Weight | 12.3g |
| Gross Weight | 17.7g |
Schematics
PinMap
Unit GPS v1.1
| HY2.0-4P | Black | Red | Yellow | White |
|---|---|---|---|---|
| PORT.C | GND | 5V | UART_TX | UART_RX |
Model Size
Datasheets
Softwares
Arduino
Video
- Unit GPS v1.1 Product Introduction
Product Comparison
| Product Compare |
Unit-GPS v1.1
 |
Unit-GPS
 |
|---|---|---|
| SoC | AT6668 | AT6558 |
| Supported Satellites | BD2/BD3/GPS/GLONASS/GALILEO/QZSS | BDS/GPS |
| Positioning Accuracy | 1.5m | 2.5m |
| Channels | 50 channels (CEP50) | 32 channels (CEP50) |
| Sensitivity | Tracking: -162dBm, Acquisition: -160dBm, Cold Start: -148dBm | Tracking: -162dBm, Acquisition: -148dBm, Cold Start: -146dBm |
| Cold Start | Cold Start: 23 seconds, Hot Start: 1 second | Cold Start: 35 seconds, Hot Start: 1 second |