The 7Semi's L89HA Breakout Multi-GNSS IRNSS-enabled integrates Quectel’s IRNSS-enabled GNSS module with two embedded antennas so it can work on L1 and L5 bands simultaneously. The board operates on 3.3V power supply and communicates with the target MCU through I2C / UART interface TX, RX, and a BAT connection pin for a backup power supply is also available. The L89 breakout can acquire and track GPS, IRNSS, GLONASS, BeiDou, Galileo and QZSS signals, reducing time-to-first-fix and allowing accurate navigation.
The L89HA Breakout is a high-performance multi-GNSS (Global Navigation Satellite System) engine that supports GPS, IRNSS, GLONASS, BeiDou, Galileo, and QZSS satellite systems. This compact and versatile GNSS module is designed to deliver highly accurate and reliable positioning data, making it ideal for a wide range of applications including navigation, tracking, timing, and geofencing.
One of the key features of the L89HA Breakout is its 3.3V power supply, which makes it easy to integrate into a wide range of systems and devices. It also features both I2C and UART interfaces, providing flexibility and compatibility with a wide range of microcontrollers and processors.
Another advantage of the L89HA Breakout is its embedded patch antenna and chip antenna, which helps to simplify the design and reduce the size of the overall system. This makes it ideal for use in compact and mobile devices such as smartphones, wearables, drones, and IoT devices.
The L89HA Breakout also boasts high sensitivity and accuracy, thanks to its advanced RF design and signal processing algorithms. It supports concurrent reception of up to three GNSS constellations, enabling it to deliver highly accurate and reliable positioning data even in challenging environments such as urban canyons and under tree canopies.
The L89HA Breakout is a versatile and powerful multi-GNSS engine that offers high accuracy, reliability, and flexibility. With its 3.3V power supply, I2C / UART interface, and embedded patch antenna and chip antenna, it is an ideal choice for a wide range of navigation, tracking, and timing applications.
- 3.3V power supply
- I2C / UART interface
- Support IRNSS L5 band
- Embedded patch antenna and chip antenna
- Multi-GNSS engines for GPS, IRNSS, GLONASS, BeiDou, Galileo and QZSS
- Support DGPS, SBAS (WAAS/EGNOS/MSAS/GAGAN)
- Integrated LNAs for better sensitivity
- Great anti-jamming performance due to multi-tone active interference canceller
How to Enable IRNSS (Indian Regional Navigation Satellite System (IRNSS) : NavIC)
- Connect USB to serial converter to L89 and Open Serial port into Qnavigator.
- To enable IRNSS please use the following AT command .
- Use External Active antenna with Open roof/sky.
- L89 AT command manual can be downloaded from the resources link.
- L89 Datasheet
- L89 Breakout 3D Step file
- L89 AT command manual
- QCOM_V1.6 for Windows
- QFlash_V4.19_EN for Windows
- Qnavigator_V22.214.171.124 for Windows
L89 Breakout Dimensions
L89 Breakout Arduino Connection
Arduino Code for GPS Read
#include <SoftwareSerial.h> // Include the SoftwareSerial library
#define ARDUINO_GPS_RX 9 // Arduino RX pin connected to GPS TX
#define ARDUINO_GPS_TX 8 // Arduino TX pin connected to GPS RX
#define GPS_BAUD_RATE 9600 // The GPS Shield module defaults to 9600 baud
// Create a SoftwareSerial object called gps:
SoftwareSerial gpsPort(ARDUINO_GPS_TX, ARDUINO_GPS_RX);
// This is the hardware serial port on pins 0/1.
#define SerialMonitor Serial
if (gpsPort.available()) // If GPS data is available
SerialMonitor.write(gpsPort.read()); // Read it and print to SerialMonitor
if (SerialMonitor.available()) // If SerialMonitor data is available
gpsPort.write(SerialMonitor.read()); // Read it and send to GPS
L89 Breakout Vs L86 Breakout
|Parameters||L89 Breakout||L86 Breakout|
|Receiving Bands||GPS L1/Galileo E1 C/A: 1575.42 MHz||GPS L1 Band Receiver (1575.42MHz)|
|GLONASS L1 C/A: 1602.5625 MHz||GLONASS L1 Band Receiver (1601.71MHz):|
|IRNSS L5 C/A: 1176.45 MHz|
|BD2 B1 C/A: 1561.098 MHz|
|SBAS||WAAS, EGNOS, MSAS, GAGAN||WAAS, EGNOS, MSAS, GAGAN|
|Horizontal Position Accuracy||Autonomous: < 1.8 m CEP||Autonomous: <2.5m CEP|
|Velocity Accuracy||Without Aid: < 0.1 m/s||Without Aid: <0.1m/s|
|Acceleration Accuracy||Without Aid: < 0.1 m/s²|
|Timing Accuracy||1PPS: 3.9 ns||1PPS Out: 10ns|
|Reacquisition Time||< 1.5 s||<1s|
|Sensitivity||Acquisition: -147 dBm
Tracking: -163 dBm
Reacquisition: -156 dBm
|Dynamic Performance||Maximum Altitude: Max. 18000 m
Maximum Velocity: Max. 515 m/s
Maximum Acceleration: 4G
|Maximum Altitude: Max. 18000m
Maximum Velocity: Max. 515m/s
Maximum Acceleration: 4G
|Link||L89 Breakout||L86 Breakout|
A GPS (Global Positioning System) and GNSS (Global Navigation Satellite System) breakout is a type of breakout board that allows a microcontroller or other electronic system to easily receive and interpret satellite signals for location and timing purposes. The board typically features a small circuit board with a set of pins that can be easily connected to a microcontroller or other device. The board also includes a GPS or GNSS module that receives signals from multiple satellites and calculates the precise location, speed, and time of the connected device. GPS and GNSS breakouts are commonly used in a wide range of applications, including navigation systems, drones, and other location-based systems. The GPS and GNSS breakout is an essential component in many electronic systems that require precise location and timing information.