DESCRIPTION
The SparkFun Qwiic Pressure Sensor features the BMP384 pressure sensor from Bosch Sensortec. The BMP384 excels at high-resolution measurements (up to 24-bit) and uses a gel-filled cavity to provide extra resistance to liquids (water and other chemicals). This makes it a great option for monitoring pressure near water or in humid environments though the sensor is not water-proof without an adequate integration concept.
The BMP384 provides excellent accuracy across a wide measurement range (300hPa to 1250hPa and -40 to +85°C) on a footprint that uses the Qwiic Standard size (1.0in. x 1.0in.). The sensor also features a configurable oversampling setting, a FIFO buffer for storing up to 73 measurements, as well as a low pass filter so users can customize the performance based on the application’s requirements. The Qwiic Pressure Sensor communicates over I2C by default, utilizing the handy Qwiic system so no soldering is required to connect it to the rest of your system. However, they’ve still broken out 0.1”-spaced pins in case you prefer to use a breadboard and also support using the BMP384 over SPI.
The BMP384 has three operating modes: Sleep Mode, Normal Mode and Forced Mode. While in Sleep Mode the sensor is idle and consumes ~2µA. While in Normal Mode, the sensor automatically cycles between measurement and standby periods and consumes ~700µA at peak current draw during measurements. Forced Mode allows direct control of measurements to wake the sensor from Sleep Mode, take a single-shot measurement, and return the device to Sleep Mode.
FEATURES
- Supply Voltage Range: 1.65V – 3.6V
-
Current Draw:
- 700µA – Peak while measuring pressure
- 3.4 µA @ 1Hz – Pressure and temperature monitoring with Ultra Low Power oversampling settings
- ~2µA – Sleep Mode
-
Data Transfer Speeds:
- I2C – 3.4MHz
- SPI – 10MHz
- I2C Address: 0x77 (Default), 0x76 (Alternate)
- Internal Temperature Sensor
RESOURCES
- Schematic
- Eagle Files
- Board Dimensions
- Datasheet (BMP384)
- Hookup Guide
- Qwiic Info Page
- BMP384 Arduino Library
- GitHub Hardware Repo
Fast Shipping and Professional Packaging
Our long-standing relationship with UPS FedEx DHL and other carriers around the world allows us to offer a range of shipping services. Our warehouse personnel is highly-skilled and will pack your products in accordance with our exact and exact specifications. Before shipping your items will be carefully inspected and secured. Everyday we deliver thousands of packages to customers from all over the world. This is a testament to our commitment to be the largest online retailer worldwide. Both Europe as well as the USA have warehouses and distribution centers.
Note: Orders that contain more than one item are assigned a processing time in accordance with the item.
Before shipping, all ordered products will be thoroughly inspected. Today, the majority orders will be delivered within 48 hours. The delivery time is estimated to be between three and seven days.
Returns
Due to multiple entities, including the factory and the warehouse, we cannot effectively manage inventory. The actual stock levels can fluctuate at any point. It's possible that you may not receive your order after the order has been made.
Our policy is for 30 days. Unfortunately, if the 30 days have elapsed since you purchased your product, we are unable to give you a refund or exchange.
You can only return a product when it's unopened and in the same condition as when you first received it. The item must be in the original packaging.
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