JARU IDE turns ESP32 development into one lightweight workflow. Write code in JARU, a small language made for microcontrollers, run and test it on Windows first with the built-in virtual machine, and step through it in the visual debugger. Check wiring in the GPIO simulator, draw sprites and images for your display, compose chiptune music in the built-in tracker, and connect devices over MQTT. When it works, one click flashes the board. No heavy toolchain, no long setup.