SmartHome ESP32 SunSensor for HomeAssistant

Enclosure for ESP32-C3 SunSensor with HB1750 Light Sensor (SmartHome / Home Assistant)
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updated October 6, 2025

Description

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This is a compact enclosure for a SmartHome SunSensor to control shaders via 
HomeAssistant using an ESP32-C3 WLAN Controller and BH1750 Sensor. The sensor is powered via USB C port.

The enclosure printed on PrusaCore One in two parts using PTEG Signal White for the case
and PETG CLEAR for the translucent sensor cover.

The enclosure is fixed to the window using a vacuum cup.

 

I've put together a detailed description on how to set the sensor up in HomeAssistant. 
Just download the YAML:

https://www.virtual-pinball-cabinet.com/projekt-sonnensensor-mit-esp32-und-bh1750-fuer-homeassistant/

Have fun and thanks for feedback!

 

#Print Settings

 

Printer:

PRUSA CoreOne

Rafts:

No

Supports:

yes

Resolution:

0.18

Infill:

15%

Filament: 
Prusament SignalWhite, PETG, 1.75mm
Prusament Clear, PETG, 1.75mm
 
HF0.4mm nozzle

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Model origin

The author marked this model as their own original creation.

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