Observed arrival · 2026-11-13
Open Mindstorms keeps three LEGO generations programmable
Free browser-based tools program Mindstorms RCX, NXT, and EV3 bricks with block or text editors, then connect to and control the hardware.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Owners of RCX, NXT, and EV3 bricks
- Worth noticing
- The RCX tools support infrared towers, including a DIY Teensy option; the page says OpenRCX was verified on a real RCX 2.0.
Field notes
Each generation has a separate tool: RCX uses infrared towers and offers NQC text alongside block programming; NXT connects by USB or Bluetooth, while EV3 supports USB or Bluetooth and Python through Pybricks. The page says EV3 block programs compile to brick bytecode in the browser, while NXT compilation runs on a server. Signing in is optional and is described as a way to store selected programs.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue