Adafruit BMP280 I2C or SPI Barometric Pressure and Altitude Sensor

This is a great little sensor, and the Adafruit tutorials are just what you need to get it working in your project. If you're interested in measuring humidity in addition to temperature and barometric pressure, I would recommend its big brother, the BME280 instead.

Bought this for my quad, since the onboard BMP085 was acting "funny". The 5V to 3.3V level shifter was convenient, as my flight controller is 5V. The BMP180 wouldn't have worked because of hardcoded, conflicting i2c addresses. I suspected this chip might not be compatible, but for the price I figured I could get it to work. The interface was relatively similar and I had it working in a few nights. It worked great for calculating relative altitude to within a quarter meter (over reasonable time frames). I never verified the accuracy of the absolute altitude calculation. I also can't speak for the accuracy of the thermometer, but it appeared to work really well, giving 0.01 degree C precision."Normal mode" where the device constantly makes readings is much more convenient than "forced mode" on the BMP085/180 where you must request each reading. Also, the chip has options for oversampling so filtering is all handled on the chip.Pulling SDO low for the alternate i2c address wasn't documented in the Adafruit documentation, but was in the Bosch datasheet.

The BMP280 is a great barometric pressure sensor. This sensor is very precise and the readings do not fluctuate hardly at all. I used this and an Arduino micro controller to measure altitude, and if you lift the sensor up even half a foot, the sensor will accurately register the altitude change. The temperature that this sensor reads is very precise - precisely 4 degrees Fahrenheit above the actual temp :) I have read that the chip self heats so that the sensor can function properly. This may be why the temperature readings are a little off.

It worked perfectly I bought this thinking it was the BME280 nevertheless it was my error. Also, I bought two BMP280 and both work so good. I recommend this store.

This Adafruit sensor features a bosch temperature and pressure sensor integrated. It's got some quirks about the way it switches from i2c down to spi, so you may want to take a look at the datasheet before integrating it or purchasing it.

Really amazing once it warms up. I was able to detect about a meter +/-

The adafruit library worked well with this sensor when using with the arduino.

Beware of this product. Although the title is correct (Adafruit BMP280 I2C or SPI Barometric Pressure and Altitude Sensor), the picture and the Product Description are both for the BME280 Sensor board. The difference between the two is that the BME280 board has a humidity sensor where the BMP280 board does not. Another difference is that the I2C addresses are different, which might explain why some other reviewers could not get it working.Having said that, as a BMP280 board it seemed well built, was clearly labeled, and worked exactly as described. But since I needed the humidity sensor, I ended up having to buy another.

Habe noch einen solchen Sensor für mein Arduinoprojekt benötigt. Diverse BME280 Sensoren anderer Hersteller haben nicht funktioniert, aber dieser hier schon. Der Preis lohnt sich definitiv!

I wanted the BME280 as I saw on the picture, but the description says BME280 wich is not what I needed.

Good product

Utilisé comme capteur sur mon projet de station météo. Intégration facile. Mesure précise. Les sources disponibles chez Adafruit aident bien.

Preislich etwas gehoben, wer es günstiger möchste sollte den BME180 anschauen.Der BME280 misst Luftfeuchte, Temperatur und Luftdruck und verteilt diese über I2C oder SPI.Bei Adafruit gibt es Demoprogramme mit denen man das Teil in ca 7 Minuten an einem Arduino zum laufen bekommt. Beim Raspberry PI wäre das Ganze auch lauffähig, da der Sensor auch 3,3V läuft und kein Pegelwandler nötig wird.Der BME280 liegt in der Auflösung vor dem BME180 - es handelt sich ja auch um den Nachfolger.Ich möchte das mit einem 3€ Arduino Nano als Luftdruckmesser beim Segeln verwenden und bei einem zu starken Druckabfall in kurzer Zeit mich visuell (LED) vor einer eventuellen Schwerwetterfront warnen lassen.