# LOCOSYS LC20031-V2 135-Channel Dual-Band GNSS Receiver Module

**Type:** Product page · **SKU:** POLOLU-2157 · **Brand:** [Pololu](https://core-electronics.com.au/brands/pololu-australia)
**Page:** https://core-electronics.com.au/locosys-lc20031-v2-135-channel-dual-band-gnss-receiver-module.html ([markdown](https://core-electronics.com.au/locosys-lc20031-v2-135-channel-dual-band-gnss-receiver-module.html.md))

The LOCOSYS LC20031-V2 integrates a global navigation satellite system (GNSS) receiver with an embedded antenna to create a complete GNSS module that can...

## Pricing

- **Price:** $239.95 (inc GST) — $218.14 AUD, exc GST
- **Quantity discounts:** 5+ $209.41 (exc GST) · 10+ $202.86 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Aug 28 and Aug 31.

## Restrictions

Restrictions apply to this equipment as it uses button/coin cell batteries:

- The equipment is intended to be used in trades, professions or industries
- The equipment is not intended for sale to the general public
- The equipment is not intended to be used where children are present
- You are aware that this equipment may not meet child safety testing requirements as it is not intended to be used by consumers or general public, but rather, is intended to be used in trades, professions or industries in conjunction with the limitations and restrictions listed above
- You are aware that these restrictions are due to a change in [A](https://www.accc.gov.au/media-release/businesses-on-notice-as-mandatory-button-battery-laws-commence)[ustralian legislation in 2022](https://www.accc.gov.au/media-release/businesses-on-notice-as-mandatory-button-battery-laws-commence) for button/coin cell batteries
 
![Button Battery Warning](https://core-electronics.com.au/attachments/uploads/iec-button-battery.png)

A declaration of use will need to be submitted during checkout.

## Description

| [![](https://core-electronics.com.au/attachments/localcontent/0J12051_20787ca1a4b.jpg)](https://core-electronics.com.au/attachments/localcontent/0J12051_178738d92c7.jpg) |
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The LC20031-V2 smart antenna module from LOCOSYS receives global navigation satellite system (GNSS) signals on up to 135 channels. It supports the GPS, GLONASS, BeiDou, Galileo, and QZSS satellite systems and can receive signals in both the L1 and L5 frequency bands. The module outputs data in the NMEA 0183 sentence format defined by the National Marine Electronics Association; these NMEA sentences are transmitted on a TTL-level serial port (UART) at an update rate of up to 10 Hz. Since the GNSS module has an integrated patch antenna, you don’t need to buy an external antenna or worry about the many different antenna connectors. The module can typically acquire a fix from a cold start in 28 seconds, and, by saving information about the satellites it was last connected to, the LC20031-V2 can acquire a hot-start fix in as little as 2 seconds.

Connections for power and TTL serial communication can be made to the module through a polarized male connector on one side, which mates with an included cable assembly. The other end of the cable is terminated with a 6-pin JST GH-style connector; you can plug it into a matching receptacle, or you can cut off the connector to solder the four wire leads directly to your project.

| [![](https://core-electronics.com.au/attachments/localcontent/0J12048_23533354908.jpg)](https://core-electronics.com.au/attachments/localcontent/0J12048_193035a01c4.jpg) |
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**Features**

- Supports GPS, GLONASS, BeiDou, Galileo, and QZSS
- Receives L1 and L5 band signals on 135 channels
- 1.5 m (CEP) typical position accuracy
- Up to 10 Hz update rate
- 3.3 V to 5.25 V operating range
- Built-in rechargeable battery to preserve system data for rapid satellite acquisition
- LED indicators: 
    - Red: power
    - Green: serial transmit (TX)
    - Blue: GNSS fix/pulse-per-second (PPS) signal
- Capable of SBAS (WAAS, EGNOS, MSAS, GAGAN) and QZSS SLAS
- Self-generated ephemeris prediction
- 28 second typical cold start, 2 second typical hot start

| [![](https://core-electronics.com.au/attachments/localcontent/0J12052_530111fe40c.jpg)](https://core-electronics.com.au/attachments/localcontent/0J12052_6858911251e.jpg) |
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**Configuration**

The LC20031-V2 GNSS receiver module’s firmware is initially set to a 1 Hz update rate, a 115200 bps serial communication rate, and is set to output GGA, GLL, GSA, GSV, RMC, VTG, and GST NMEA sentences (see the LC2003x-Vx datasheet (2MB pdf) for more information). After connecting the LC20031-V2 to a computer using a serial port or [USB-to-serial adapter](https://core-electronics.com.au/cp2102n-usb-to-serial-adapter-carrier.html), you can use the GNSS Firebird (28MB zip) Windows application to change these default settings. (You can also download the latest version of the GNSS Firebird software directly from the [LOCOSYS website](https://www.locosystech.com/en/page/Evaluation-Kit-Testing-Software-Manual/support-evk.html).)

**Dimensions**

 | Size: | 38 × 38 × 8.4 mm |
|---|---|
| Weight: | 13.5 g[1](https://core-electronics.com.au/#note1) |

**General specifications**

 | Minimum operating voltage: | 3.3 V |
|---|---|
| Maximum operating voltage: | 5.25 V |

**Notes:**

1Without included cable. **File downloads**

- **LC2003x-Vx GNSS receiver module family datasheet (2MB pdf)**
- **MC-1612a-V2b GNSS module datasheet (2MB pdf)**
    
    This datasheet for the MC-1612a-V2b module used on the LC20031-V2 has additional information about configuring the receiver.
- **GNSS Firebird application (version 1.0.0.19) (28MB zip)**
    
    A Windows application for configuring and displaying data from the LOCOSYS LC20031-V2 135-Channel Dual-Band GNSS Receiver Module. (You can also download the latest version of this software directly from the [LOCOSYS website](https://www.locosystech.com/en/page/Evaluation-Kit-Testing-Software-Manual/support-evk.html).)
    
     | [![](https://core-electronics.com.au/attachments/localcontent/0J12052_70546c86200.jpg)](https://core-electronics.com.au/attachments/localcontent/0J12052_6858911251e.jpg) |
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    | GNSS Firebird application showing data from an LC20031-V2 module inside Pololu’s offices. |
 
**Recommended links**

- **[LOCOSYS software download page](https://www.locosystech.com/en/page/Evaluation-Kit-Testing-Software-Manual/support-evk.html)**
    
    You can download the latest version of the GNSS Firebird Windows application for the LOCOSYS LC20031-V2 135-Channel Dual-Band GNSS Receiver Module here.
- **GPS – NMEA Sentence Information**
    
    Description of various NMEA sentences by Glenn Baddeley.

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/P/O/POLOLU-2157-1.jpg)