'On air' meeting sign for remote work

'On air' door sign. Uses a single 18650 battery.
24
59
0
707
updated July 22, 2021

Description

PDF

My brother is remote working and his office's hall is very dark, so whenever the door is closed (which is most of the time) we can't see the 'do not disturb' hotel sign he puts on the handle. I've seen him getting frustrated at having to jump to the mute key so I made him a simple lighted sign.

It's just a 100R resistor and 4 3mm red LEDs, connected to a SPDT toggle switch and powered by a 18650 battery removable from the bottom. I used a diffuser sheet from a scrapped LCD backlight so it improves eyecandy and visibility.

Needs 2x M3 screws, minimum length 4mm, and a battery holder (these from Aliexpress are quite cheap and handy). Circuit is mounted on a 20x70mm perfboard. Faceplate, battery holder, difusser sheet and board are glued with cianoacrilate glue (Loctite).

Stick it with double sided tape, et voilà ;)

NOTICE: Please use a protected battery cell, so you don't need to monitor its level in order to avoid overdischarge.

 

Original pics printed with an Artillery Genius.

 

Notes: 

No supports needed if parts are properly oriented. For a better finish on the faceplate, turn ironing on and make it face upwards (so the side you see is the side that gets ironed)

 

 

 

Category: Office

Tags



Model origin

The author marked this model as their own original creation. Imported from Thingiverse.

License


Highlighted models from creator

View more