Browser-based Arduino IDE

Learn by Making

An open platform where makers and learners discover hardware projects, write code with AI assistance, wire circuits, and flash real boards — all from the browser.

Slider Theremin

Slider Theremin

// Welcome to Granrojo.
// Open the chat panel on the right and tell the AI what you want to build —
// it will write the code, wire up the diagram, and flash the board with you.

#include <Arduino.h>

void setup() {
  Serial.begin(115200);
}

void loop() {
}

ez 4 pin led