Room Minder is a device that watches Google calendar to find out if a meeting room is booked or not. If the room is booked then the red hand warns people not to enter, if it’s free then the green man gives the all clear. You can ‘Button Book’ when it is free with the illuminated button – pressing it blocks out 10 minutes in the Google calendar for you.
The case is 3d printed, primed and painted, internally a Nodemcu handles the wifi and some relays switch a pair of COB LEDs
Back end was in collaboration with Sam @ Brilliant Noise