Sensor BME280 Barómetro, Temperatura y Humedad para Arduino y Raspberry Pi

El BME280 ofereix mesura simultània de temperatura, pressió i humitat, mentre que el BMP180 només mesura pressió i temperatura, i el DHT22 només mesura temperatura i humitat. En precisió, el BME280 destaca: ±1°C en temperatura, ±0,25% hPa en pressió i ±3% d'humitat relativa, superant el DHT22 (±0,5°C, ±2-5% HR) i el BMP180 (±1°C, ±1 hPa). Això el fa més versàtil i precís per a aplicacions meteorològiques.

El mòdul BME280 típic fa aproximadament 15 x 12 mm i pesa menys de 2 grams. Sol incloure la placa amb el sensor soldat, pins header per soldar/connectar i un manual bàsic de connexió. No s'hi inclouen cables ni carcasses addicionals.

Per obtenir mesures fiables, instal·leu el BME280 en zones ventilades, lluny de fonts de calor directa, humitat condensada o corrents d'aire forçats. Eviteu el contacte amb aigua o pols. En projectes fixos, se suggereix un encapsulat amb malla microporosa per protegir-lo sense afectar-ne la resposta.

El BME280 té una vida útil estimada de més de 5 anys en condicions normals de funcionament (0-90% HR sense condensació, -40 a 85°C). No hi ha recanvis interns; en cas d'avaria, se substitueix el mòdul complet. La garantia depèn del distribuïdor, habitualment limitada a defectes de fabricació durant 3 a 12 mesos.

The BME280 measures temperature, pressure and humidity simultaneously, whereas the BMP180 measures only pressure and temperature, and the DHT22 measures only temperature and humidity. In terms of accuracy, the BME280 stands out: ±1°C for temperature, ±0.25% hPa for pressure and ±3% relative humidity, outperforming the DHT22 (±0.5°C, ±2–5% RH) and the BMP180 (±1°C, ±1 hPa). This makes it more versatile and accurate for weather applications.

The typical BME280 module measures approximately 15 x 12 mm and weighs less than 2 grams. It usually includes the board with the sensor soldered on, header pins for soldering/connecting and a basic connection guide. No cables or additional housings are included.

For reliable measurements, install the BME280 in ventilated areas, away from direct heat sources, condensed moisture or forced air currents. Avoid contact with water or dust. For fixed projects, encapsulation with microporous mesh is suggested to protect it without affecting response.

The BME280 has an estimated service life of more than 5 years under normal operating conditions (0–90% RH without condensation, -40 to 85°C). There are no internal spare parts; the complete module is replaced in the event of failure. Warranty depends on the distributor, usually limited to manufacturing defects for 3 to 12 months.

The BME280 measures temperature, pressure and humidity simultaneously, whereas the BMP180 only measures pressure and temperature, and the DHT22 only measures temperature and humidity. In terms of accuracy, the BME280 stands out: ±1°C for temperature, ±0.25% hPa for pressure and ±3% relative humidity, outperforming the DHT22 (±0.5°C, ±2-5% RH) and the BMP180 (±1°C, ±1 hPa). This makes it more versatile and accurate for weather applications.

The typical BME280 module measures approximately 15 x 12 mm and weighs less than 2 grams. It usually includes the board with the sensor soldered on, header pins for soldering/connection and a basic connection manual. No cables or additional housings are included.