Welcome! Here's how to use the Nest Protect that I made in Scratch. Click on the "nest" button to interact with Nest Protect. Currently there is "Press to Test", with setup and functionality coming soon. Here's a little hint, try activating the "Smoke", "Smoke (Heads Up!)", or 'SoundTest" Broadcasts.
Thanks to Nest for the Nest Protect 2nd Gen in it's entirety and the 1st Gen. (R.I.P NEST PROTECT 2015-2025)