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7Semi LG290P GNSS RTK Modem with ESP32-S3 Wi-Fi + Bluetooth 5 (LE)
The 7Semi LG290P is a high-precision GNSS RTK development board combining the Quectel LG290P quad-band GNSS module with the ESP32-S3 dual-core microcontroller. It delivers centimetre-level RTK positioning accuracy alongside 2.4 GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5 Low Energy connectivity in a single, compact platform. Supporting simultaneous reception of GPS, GLONASS, Galileo, BDS, QZSS, and NavIC constellations across L1, L2, L5, and E6 bands, this board is well-suited for applications that demand reliable, high-accuracy location data with flexible wireless communication options.
The board integrates a USB-C port for power and programming, a 2-pin JST connector for an RTC backup battery to reduce Time to First Fix (TTFF), and 3 onboard LED indicators for real-time operating status. With UART interfaces, exposed GPIO pins, and compatibility with Raspberry Pi, Raspberry Pi Pico, Jetson Orin, ESP32, and Arduino platforms, the LG290P modem supports rapid prototyping and integration into embedded systems. Its built-in professional-grade anti-jamming unit and excellent urban canyon performance make it a dependable solution for field deployments where signal reliability is critical.
Features
- Quad-Band GNSS Support: Simultaneously receives L1, L2, L5, and E6 signals across GPS, GLONASS, Galileo, BDS, QZSS, and NavIC constellations for robust, high-accuracy positioning.
- RTK Centimetre-Level Accuracy: Achieves centimetre-level precision with fast RTK convergence time; supports PPP-B2b and PPP-HAS precise point positioning services.
- High Update Rate: Delivers up to 20 Hz position updates even in RTK mode, suitable for dynamic and real-time tracking applications.
- ESP32-S3 Dual-Core MCU: Xtensa LX7 dual-core processor optimised for IoT and edge computing, with integrated 8 KB SRAM and 8 KB Flash.
- Wi-Fi 802.11 b/g/n: 2.4 GHz Wi-Fi with 40 MHz bandwidth support for reliable wireless data transmission.
- Bluetooth 5 LE: Supports long-range communication via Coded PHY, advertisement extension, and 2 Mbps PHY for higher throughput.
- SBAS Augmentation: Compatible with WAAS, EGNOS, BDSBAS, MSAS, GAGAN, and SDCM correction systems for improved standalone accuracy.
- Anti-Jamming Unit: Built-in professional-grade NIC anti-jamming module suppresses multiple narrow-band interference sources for stable urban and field performance.
- USB-C Interface: Onboard USB Type-C port supports USB-to-UART communication and module power supply at 5 V for easy development and debugging.
- RTC Backup Battery Connector: Onboard 2-pin JST connector for connecting an RTC backup battery, reducing TTFF in repeated-start scenarios.
- Multi-Platform Compatibility: Supports Raspberry Pi, Raspberry Pi Pico, NVIDIA Jetson Orin, ESP32, and Arduino development environments.
- Onboard Indicators and Controls: 3 x LED indicators for power, GNSS, and RTK status; dedicated Reset and Boot buttons for convenient control.
- Compact and Breadboard-Compatible: Integration-friendly layout suitable for embedded prototyping and field-deployable hardware builds.
- Advanced Positioning Technologies: Supports RTKHOLD, AGNSS, PPP-HAS E6, and PPP-B2b for enhanced performance in challenging conditions.
Specifications
- Supply Voltage: 5 V via USB Type-C
- Operational Temperature: -40 to +70 C
- SRAM: 8 KB
- Flash: 8 KB
- Supported GNSS Constellations: GPS, GLONASS, Galileo, BDS, QZSS, NavIC
- Supported GNSS Bands: L1, L2, L5, E6
- GNSS Update Rate: Up to 20 Hz (RTK mode)
- RTK Accuracy: Centimetre-level
- Wi-Fi Standard: 802.11 b/g/n, 2.4 GHz, 40 MHz bandwidth
- Bluetooth Version: Bluetooth 5 LE (Coded PHY, 2 Mbps PHY)
- UART Interfaces: Yes
- USB Interface: USB Type-C (USB-to-UART, power supply)
- RTC Backup Connector: 2-pin JST
- LED Indicators: 3 x (Power, GNSS, RTK status)
- Controls: Reset button, Boot button
- SBAS Support: WAAS, EGNOS, BDSBAS, MSAS, GAGAN, SDCM
- PPP Services: PPP-B2b, PPP-HAS
- Anti-Jamming: Built-in NIC narrow-band anti-jamming unit
- Platform Compatibility: Raspberry Pi, Raspberry Pi Pico, Jetson Orin, ESP32, Arduino
Package Includes
- 1x 7Semi LG290P GNSS RTK Modem with ESP32-S3 Wi-Fi + Bluetooth 5 (LE)
Warranty Terms :
Branded products (Waveshare/ Raspberry Pi/ Radxa/ DWIN etc) are as per brand warranty terms. Generic products are eligible for replacement within 7 days of delivery based on following conditions.
Products are eligible for a replacement if there is physical damage during transit or a clear manufacturing defect. Any claim for damage/ wrong items/ replacement must be made within 48 hours of successful delivery of the product. Requests for refund of amount or exchange of product(s) will be reviewed on a case by case basis and HUBTRONICS carries final rights to take a final decision on refund, store credit or exchange.
What to take care of ?
Most of our products are technical in nature and require trained personnel to handle them. Any kind of mishandling can result in damage or malfunctioning of the product, it is not possible for us to provide a replacement or refund if the product is damaged due to technical or physical mishandling.
Who pays the return shipping cost?
Free of cost return pickup from delivery address is eligible for products categorized as manufacturing defect/ Damage in transit/ Wrong items delivered. We do not support return pickup for any B2B order or offline orders not placed on website. Buyer need to arrange return shipping for B2B orders.
What voids warranty?
Please note that replacement/ return or refund is not possible if the product is not compatible with your system/application. Please check all the technical details/ dimensions etc. before ordering and contact us for any kind of clarifications.
If product is soldered/ programmed at any point or physically altered in any way, it is not eligible for return/ replacement. If the item requires soldering for testing, please ensure that you use suitable clips or jig to test it without soldering. Any kind of soldering job makes the product ineligible for return or replacement.
Following items are not eligible for return under any circumstances
- Device Programmers / Dongles
- Soldering Consumables (Wire, Flux etc)
