Lejos May 2026

to your computer via USB to configure networking (Wi-Fi is recommended). 2. Development Environment Setup (Eclipse) Use Eclipse for Java Developers.

Create a new Java class and use the following code to display text on the screen: to your computer via USB to configure networking

Flash the image onto your microSD card using software like BalenaEtcher. Insert the card into the and boot it up. Connect the // Wait for 2 seconds LCD.clear()

Right-click your project -> leJOS -> Upload and Run on EV3 . 4. Core Concepts & API LeJOS, Java for Lego Mindstorms / Books to your computer via USB to configure networking

import lejos.hardware.lcd.LCD; import lejos.utility.Delay; public class HelloWorld { public static void main(String[] args) { LCD.drawString("Hello, leJOS!", 0, 0); Delay.msDelay(2000); // Wait for 2 seconds LCD.clear(); } } Use code with caution. Copied to clipboard