Bluetooth
Pair with the hub wirelessly. Best for everyday programming and live keyboard control.
Idle
Drag a block from the toolbox on the left to start building. Try a When program starts hat from the Events category.
Pair with the hub wirelessly. Best for everyday programming and live keyboard control.
Wired connection over USB-C. Required for firmware reinstall and full-speed transfer.
Restores the stock LEGO firmware. Use to return to factory state after experimenting.
Auto-injected at the top of every program. No firmware modification needed — runs on top of the official LEGO firmware.
Move and Turn blocks close the loop on the hub's gyro every 10 ms — straight stays straight, 90° really is 90°.
Drop a When key X pressed hat block, connect over Bluetooth, and your laptop becomes a remote with sub-100 ms latency.
Flash the stock LEGO firmware over USB-C from the Firmware tab — useful for switching between this editor and the official app.
Every block program is also live MicroPython. Flip the Edit toggle to take over and write directly.