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This API supports the following functionalities:

Controlling LEGO motors
Reading from the following sensors:
- Touch
- Ultrasonic
- Color
- Gyro
- Infrared
- HiTechnic Color Sensor V2
- HiTechnic Compass Sensor
- HiTechnic Infrared Sensor
- NXT Temperature
- NXT Sound
- Pixy Cam
Controlling Buttons and LEDs
Printing text on LCD
Playing sounds and audio files

Requirements

In order to compile a program that uses this library, or to rebuild this library, you need a compatible ARM toolchain. You can download the one from the official c4ev3 repository.

Using the library

Download library from the releases page. Each releases consist of a zip file that contains an include folder, with all the headers, and a lib folder, which contains the built static library. There are two versions of static library: glibc and uclibc. While compiling, specify the right version to use according to your compiler.

If you are using the toolchain from c4ev3, use the uclibc version.

Create now a new file:

// hello.c

#include <ev3.h>

int main () {
    InitEV3();

    LcdTextf(LCD_COLOR_BLACK, 0, 0, "Hello world!");
    Wait(5000);

    FreeEV3();
    return 0;
}

Then compile it with:

arm-c4ev3-linux-uclibcgnueabi-gcc hello.c -I /path/to/c4ev3/include -L /path/to/c4ev3/include/lib/uclibc -lev3api

or with (if you're using a glibc compiler)

arm-linux-gnueabi-gcc hello.c -I /path/to/c4ev3/include -L /path/to/c4ev3/include/lib/glibc -lev3api

Finally, use ev3duder to upload the program to the robot.

Documentation

You can find the documentation here: https://simonedegiacomi.github.io/EV3-API/files.html

simonedegiacomi/EV3-API

Fork of EV3-API

Requirements

Using the library

Documentation