To compile an Arduino sketch, codebender uses clang a ... there’s built-in highlighting and documentation, and a small bit of Java allows you to upload your code and monitor the serial port ...

Arduino is a popular brand of open-source microcontrollers ... including C/C++, HTML/CSS, Java, Javascript, jQuery, Perl, and Python, directly on the Debian-based Raspberry Pi OS loaded on the ...

The user draws in an HTML5 Canvas object which is read by a Java Web Server. From there it gets converted to serial commands for an Arduino which controls the steppers with two EasyDrivers.