Is this 3D model free to download?

Yes, Smart light switch with a servo is free to download from Thingiverse. Open it in the free Thinger app, or use the "Download from Thingiverse" link to open the original listing by the creator.

Where do I download the STL file?

The download is hosted by Thingiverse. Use the "Download from Thingiverse" link on this page to open the original listing and grab the file, or save it to your print queue in the free Thinger app.

Designed by pulsar123, published on Thingiverse. Please credit the creator when sharing your print.

Can I print this at home?

Yes. This is a printable 3D model intended for home FDM and resin printers. Check the original listing for suggested print settings.

Smart light switch with a servo 3D printable model by pulsar123

Smart light switch with a servo

Source: Thingiverse by pulsar123

The Smart light switch with a servo is a free printable 3D model from Thingiverse by pulsar123. This is a remix of the excellent base design by carjo3000. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from Thingiverse

115 saves Source: Thingiverse Updated 2026-10-16 License: CC-BY · commercial OK 1 makes Category: Gadgets & Electronics

Tags: Smart, light, switch, with, a, servo

About this model

This is a remix of the excellent base design by carjo3000. I re-used the original part servo_arm.stl as is, extended the base part down to make a room for the microcontroller (ESP-12 dev kit v0.9 from ebay based on ESP8266) enclosure - the part servo_switch_plate.stl, and finally designed a new part - a simple cover for the microcontroller, servo_switch_cover.stl. I also modified my Smart Light switch code ( to include an optional support for a servo (a cheap 9G from ebay will work just fine). The original code operated solid state relay based switches, with or without a physical switch. In all cases, smart switching functionality (based on computed sunset/sunrise times), and remote controlling over Internet are available. Here is a short youtube demo of the switch:

Frequently asked questions

Is this 3D model free to download?: Yes. Smart light switch with a servo is free to download from Thingiverse. Open it in the free Thinger app, or use the "Download from Thingiverse" link above to open the original listing.
Where is the STL hosted?: The download is hosted by Thingiverse, not by Thinger. We link you directly to the original listing by pulsar123.
Who made this model?: Designed by pulsar123, published on Thingiverse. Please credit the creator when sharing your print online.
Can I print this at home?: Yes. This model is intended for home FDM and resin 3D printers. Check the original listing for suggested print settings like layer height and supports.