{"id":6565,"date":"2026-06-18T14:46:13","date_gmt":"2026-06-18T14:46:13","guid":{"rendered":"https:\/\/materialparts.com\/bmp280\/"},"modified":"2026-06-18T14:46:13","modified_gmt":"2026-06-18T14:46:13","slug":"bmp280","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/bmp280\/","title":{"rendered":"BMP280"},"content":{"rendered":"

\u0646\u0638\u0631\u0629 \u0639\u0627\u0645\u0629 \u0639\u0644\u0649 \u0627\u0644\u0645\u0646\u062a\u062c<\/h2>\n

The BMP280 from Bosch Sensortec (distributed by ROHM) is a digital barometric pressure sensor that can also measure temperature. With a pressure accuracy of +\/-1hPa and low power consumption of 2.7uA at 1Hz, it is ideal for altitude tracking and weather monitoring in a compact 2.0×2.5mm LGA package.<\/p>\n

\u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629<\/h2>\n\n\n\n\n\n\n\n\n\n\n
Pressure Range<\/td>\n300 to 1100hPa<\/td>\n<\/tr>\n
Pressure Accuracy<\/td>\n+\/-1hPa (at 25C, 950-1050hPa)<\/td>\n<\/tr>\n
Temperature Accuracy<\/td>\n+\/-1.0C (at 25C)<\/td>\n<\/tr>\n
Resolution<\/td>\n0.01hPa (pressure), 0.01C (temp)<\/td>\n<\/tr>\n
\u0627\u0644\u0648\u0627\u062c\u0647\u0629<\/td>\nI2C (up to 3.4MHz) + SPI (up to 10MHz)<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0627\u0644\u0625\u0645\u062f\u0627\u062f<\/td>\n1.71V to 3.6V<\/td>\n<\/tr>\n
Current (1Hz)<\/td>\n2.7uA (ultra-low power mode)<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nLGA-8 (2.5×2.0x0.95mm)<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-40 to +85 C<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • High-precision barometric pressure measurement<\/li>\n
  • Ultra-low power: 2.7uA at 1Hz in ultra-low power mode<\/li>\n
  • Dual interface: I2C and SPI<\/li>\n
  • Multiple power modes: sleep, forced, normal<\/li>\n
  • On-chip temperature compensation<\/li>\n
  • Pin-compatible with BME280 (humidity variant)<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Altitude measurement and navigation<\/li>\n
    • Weather forecasting and meteorology<\/li>\n
    • Indoor navigation and floor detection<\/li>\n
    • Drone altitude hold<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The BMP280 from Bosch Sensortec (distributed by ROHM) is a digital barometric pressure sensor that can also measure temperature. With a pressure accuracy of +\/-1hPa and low power consumption of 2.7uA at 1Hz, it is ideal for altitude tracking and weather monitoring in a compact 2.0×2.5mm LGA package. Key Specifications Pressure Range 300 […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,42],"tags":[],"chip_brand":[145],"class_list":["post-6565","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-sensors","chip_brand-rohm"],"acf":{"brief_explanation":"Digital barometric pressure sensor, +\/-1hPa accuracy, I2C\/SPI, 2.5x2.0mm LGA","date_code":"","package_case":"LGA-8 (2.5x2.0x0.95mm)","in_stock":6660,"datasheet":"https:\/\/www.bosch-sensortec.com\/media\/boschsensortec\/downloads\/datasheets\/bst-bmp280-ds001.pdf","price":"$1.50 @ 1ku","product_introduction":"The BMP280 from Bosch Sensortec is a high-precision, low-power digital barometric pressure sensor. It measures absolute pressure from 300hPa to 1100hPa with an accuracy of +\/-1hPa and can derive altitude with approximately 1m resolution. The sensor also provides temperature measurement with +\/-1.0C accuracy for on-chip temperature compensation. Multiple operating modes allow trade-offs between resolution and power consumption: ultra-low power mode draws only 2.7uA at 1Hz, while ultra-high resolution mode provides 0.01hPa resolution. The compact 2.5x2.0x0.95mm LGA package and dual I2C\/SPI interface make it easy to integrate into portable and wearable devices.","working_principle":"The BMP280 uses a piezoresistive MEMS pressure sensing element whose resistance changes with applied atmospheric pressure. The sensing element is connected in a Wheatstone bridge configuration and its output is digitized by an internal ADC. Factory-calibrated compensation parameters stored in non-volatile memory correct for offset, sensitivity, and temperature drift. The on-chip temperature sensor provides the reference for pressure compensation. The device supports three power modes: sleep (0.1uA), forced (one measurement on demand), and normal (continuous periodic measurements with configurable standby time). The IIR filter can be configured to reduce short-term disturbances from wind or door slamming.","pin_description":"
      Pin<\/th>Name<\/th>Function<\/th><\/tr>
      1<\/td>GND<\/td>Ground<\/td><\/tr>
      2<\/td>CSB<\/td>Chip select (active low, also selects I2C\/SPI)<\/td><\/tr>
      3<\/td>SDI<\/td>SPI data in \/ I2C data (SDA)<\/td><\/tr>
      4<\/td>SCK<\/td>SPI clock \/ I2C clock (SCL)<\/td><\/tr>
      5<\/td>SDO<\/td>SPI data out \/ I2C address select<\/td><\/tr>
      6<\/td>VDDIO<\/td>I\/O supply voltage (1.2-3.6V)<\/td><\/tr>
      7<\/td>GND<\/td>Ground<\/td><\/tr>
      8<\/td>VDD<\/td>Core supply voltage (1.71-3.6V)<\/td><\/tr><\/table>","application_scenarios":"
      • Drone altitude hold systems using barometric pressure with 1m resolution<\/li>
      • Wearable fitness trackers estimating elevation change during hiking\/running<\/li>
      • Indoor navigation and floor-level detection in smart buildings<\/li>
      • Weather stations with ultra-low power continuous atmospheric pressure monitoring<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        BME280<\/td>Bosch<\/td>Pin-compatible, adds humidity sensor<\/td><\/tr>
        BMP388<\/td>Bosch<\/td>Newer, +\/-0.5hPa accuracy, lower power<\/td><\/tr>
        DPS310<\/td>Infineon<\/td>+\/-0.5hPa, temperature compensated<\/td><\/tr>
        LPS22HB<\/td>ST<\/td>26-1260hPa, embedded FIFO<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/6565","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/comments?post=6565"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/6565\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=6565"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=6565"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=6565"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=6565"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}