uploaded 1 year ago
NMEA parser


NMEA parser component for ESP-IDF

This is a wrapper around libnmea, in the form of an ESP-IDF component. It works with any chip supported in ESP-IDF: ESP32, ESP32-S2, ESP32-S3, ESP32-C3.


There are two usage options:

  1. Use idf-component-manager. Simply run idf.py add-dependency igrr/libnmea==required_version in your project directory.


  1. Clone the component into the components directory of your project, or add it as a submodule. See libnmea documentation for more details.

This component uses CMake build system. It works with ESP-IDF v3.3 and v4.x.


Example project is provided inside example directory. It works the same way as parse_stdin.c example from libnmea, except that it reads NMEA sentences from UART.

Connect the TXD pin of GPS receiver to GPIO21 of an ESP32 board. For other chips (ESP32-S2, ESP32-C3), change the pin number to any free GPIO.

Build and flash the example. Decoded NMEA messages will be displayed in the console.


libnmea, this component, and the example project are licensed under MIT License.


Supports all targets

License: MIT

To add this component to your project, run:

idf.py add-dependency "igrr/libnmea^0.1.1"

or download archive


  • ESP-IDF >=4.0
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    igrr/libnmea version: 0.1.1