{"title":"Adafruit BMP388 - Precision Barometric Pressure and Altimeter","handle":"adafruit-bmp388-precision-barometric-pressure-and-altimeter","url":"/products/adafruit-bmp388-precision-barometric-pressure-and-altimeter","description":"The BMP388 from Bosch is a high-precision barometric pressure and temperature sensor, offering significantly improved altitude accuracy over the BMP280. With altitude noise as low as 0.1 metres and a relative accuracy of 8 Pascals (±0.5 m), it is an excellent choice for drone altitude hold, wearable altimeters, and precision environmental sensing.\n\nLike its predecessors, the BMP388 supports both I2C and SPI interfaces. Use I2C for simple wiring, or SPI to connect multiple sensors without address collisions. The breakout board includes a 3.3V regulator and level shifting for easy use with both 3V and 5V microcontrollers.\n\nKey Features\n\n\nBarometric Pressure – 8 Pascal relative accuracy (vs 12 Pa on BMP280)\n\nAltitude Precision – ±0.5 metre accuracy with 0.1 m noise floor\n\nTemperature – ±0.5°C accuracy\n\nDual Interface – I2C and SPI communication\n\nVoltage Range – 3–5V operation via onboard regulator and level shifting\n\nFast Conversion – Quick sampling for responsive flight control\n\n\nAlso Available\n\n\nAdafruit BMP280 – Previous generation with ±1 m altitude accuracy\n\nAdafruit BME280 – Adds humidity sensing to pressure and temperature\n\nAdafruit BME680 – Adds humidity and VOC gas sensing\n\n\nIdeal For\n\nDrone and quadcopter altitude hold\nWearable altimeters and fitness devices\nHigh-precision weather stations\nHeight-above-sea-level tracking applications\n\n\n\nNote: For absolute altitude readings, you will need to enter the current barometric pressure at sea level. This is true of all pressure-based altimeters, as readings shift with weather changes.\n\n\nPackage Contents\n\n1× Adafruit BMP388 precision barometric pressure sensor breakout\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":5918,"title":"Default Title","sku":"AF-3966","price":19.96,"on_sale":false,"in_stock":true,"available_quantity":105,"option1":"Default Title"}]}