OpenSENSE - Smart Home Ambient Sensor

What is this project about?

OpenSENSE is a DIY wireless ambient sensor for smart home and home automation applications.

Easily measure room temperature, humidity, pressure, ambient light and UV index. The sensor is USB-C powered, `really tiny` and light-weight so you can easily mount it almost anywhere.

Sensor Measurements

Ambient Temperature
Relative Humidity
Barometric pressure
Ambient Light
UV Index

Features

Small form-factor (measures 40x20mm / 1.58"x0.79")
USB-C connector for power
Wireless sensor (WiFi)
Low-power consumption
Re-configurable over USB
Works with HomeAssistant
Works with ESPHome
Open-Source and Open-Hardware
DIY friendly

Hardware

ESP32-C3 microcontroller - Wi-Fi and Bluetooth 5 (LE) SoC

BME280 temperature, humidity and pressure sensor -- Temperature: -40 to +80C temperature range -- Humidity: ±3% accuracy (20-100% RH) -- Pressure: RMS noise 0.2Pa, Sensitivity error ±0.25%
LTR-390UV ambient light and UV sensor -- Wide dynamic range 1:18.000.000 -- Close to human eye spectral response

Out of the box the sensor is pre-configured to work with HomeAssistant using ESPHome integration. This should allow anyone to get up-an-running in just a couple of simple steps.

Can I buy OpenSENSE?

Yes you can. It's available on the web shop.

What platforms are supported?

OpenSENSE is designed to work with ESPHome to allow for quick and easy integration into your Smart Home system.

But it is also a very hacker friendly solution, so you could treat it as a custom board for which you can write your own Arduino/ESP code.

Or you can use any other ESP32 smart home integrations.

You could also use it as a ESP32 development board with BME280 and LTR-390UV sensors.

Sasa Karanovic

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