HiLetgo BME680 Digital Temperature Humidity Sensor Module (Temperature/Humidity/Pressure/VOC Gas) 4 in 1 Sensor High Precision Environmental Monitoring Sensor with SPI IIC DC 5V

I love this, I've bought more than one now for integration into a home assistant system for general Air Quality monitoring in the workshop and garage. ESP home makes it easy to program and integrate. Does require some calibration, but that's not a problem if you can follow esp home's instructions. I've had these running for a few years now and zero problems.

Gives me temperature, barometer, and air quality measurements on my meshtastic node. In the enclosure though the node might be a little warm so it reads about 10 degrees higher then it should.

First, I would say this is not an absolute beginner's device, as you'd need to be somewhat knowledgeable at programming, soldering, finding & following instructions (none are included). This device can be used with many platforms, so there are no universal installation instructions for using this device. I have a few bme280s around the house, so decided to add a bme680 to the mix. I'm impressed with the data it's giving and seems to be accurate. The device has worked without an issue since the burn-in period stated in the datasheet. Getting it setup in ESPHome was a little fussy to get all the BSEC2 data (shown on the left panel on screen). Without the BSEC2 data you only get temperature, humidity, air pressure, and gas resistance. I used an ESP32 for the microcontroller for wifi transmission of data. I'm planning to use this to automate my house to turn off all the lights when I go to bed. Theory is, once I'm in bed the CO2 levels will rise and if they stay above xlevel for xtime, it's safe to assume I'm in bed; then turn off all the lights, (re)lock the door, turn on the cameras & notifications, and set the thermostat. Update 1/2026 I used a 25W UVC lamp in a room the a BME680 to see how well it was working and timed with HVAC cycles to keep air mixed. The light isn't shining on the sensor and on the other side of a bookcase.

I was able to get everything working except the air quality portion of the sensor. I’m not sure if it is my code or if I burned up the sensor soldering it together, either way I’m pretty sure it’s my fault. All in all I get a lot of good data out of this tiny module - 20250129 Edit: It was my code, after using Arduino IDE I ended up with better results than I could produce using my own Python. I actually just let the magic smoke out of my bme680 last night so I came back to get another one.

Muy buen producto, y lo mas importante para mi, es que llego muy rapido.