Python - Python is a clear and powerful object-oriented programming language, comparable to Perl, Ruby, Scheme, or Java.
MINIBLOQ - miniBloq is an open source graphical programming environment for Multiplo™, Arduino™, physical computing devices and robots.
Rust - A safe, concurrent, practical language
Visuino - Visuino is a visual programming environment that lets you write programs from Arduino circuit boards.
Java - A concurrent, class-based, object-oriented, language specifically designed to have as few implementation dependencies as possible
ArduBlock - ArduBlock is a graphical programming language plugin specifically made for Arduino circuits and controllers.