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本帖最后由 GerryChen 于 2016-1-27 12:04 编辑
Description: Life has its ups and downs, so why not measure them? The MPL3115A2 is a MEMS pressure sensor that provides Altitude data to within 30cm (with oversampling enabled). The sensor outputs are digitized by a high resolution 24-bit ADC and transmitted over I2C, meaning it’s easy to interface with most controllers. Pressure output can be resolved with output in fractions of a Pascal, and Altitude can be resolved in fractions of a meter. The device also provides 12-bit temperature measurements in degrees Celsius. This breakout board makes it easy to prototype using this tiny device by breaking out the necessary pins to a standard 0.1" spaced header. The board also has all of the passive components needed to get the device functioning, so you can simply connect it to something that talks I2C and get to work! Features: 1.95V to 3.6V Supply Voltage, internally regulated by LDO 1.6V to 3.6V Digital Interface Supply Voltage Fully Compensated internally Direct Reading, Compensated Pressure: 20-bit measurement (Pascals) Altitude: 20-bit measurement (meters) Temperature: 12-bit measurement (degrees Celsius) Programmable Events Autonomous Data Acquisition Resolution down to 1 ft. / 30 cm 32 Sample FIFO Ability to log data up to 12 days using the FIFO 1 second to 9 hour data acquisition rate I2C digital output interface (operates up to 400 kHz) GitHub (Design Files & Example Code) GitHub (Library) Sparkfun link:https://www.sparkfun.com/products/11084 描述 : 生活有高低起伏,如何测量它呢。 MPL3115A2 是一个MEMS压力传感器提供精度在3cm的高度数据。 传感器输出通过一个高分辨率的24-bit ADC数字化,并且通过I2C传输,意味着它很容易与很多的控制器相连接。 压力输出可以用Pascal的分数来解决, 而高度可以用米的分数来描述,它同时提供了用摄氏度描述的12-bit温度测量。 这个板子使得很容易运用这个小器件通过将必要引脚分开为标准的1''间距排针设计原型。 这个板子同样拥有很多需要使这个器件工作的被动元件,,所以你仅仅需要将它连接到I2C接口的器件然后开始工作。特征: 1.95V to 3.6V 电压源,内部通过LDO调节 1.6V to 3.6V 数字接口电压源 内部完全补偿 直接读取,补偿 压力: 20-bit 测量(帕斯卡尔) 高度: 20-bit 测量(米) 温度:12bit 测量 (度) 可编程事件 自动匿名数据获取 分辨率低到 1 ft./30cm 32 采样快速输入输出 通过快速输入输出记录12天的数据 1秒到9小时的数据采样速率 I2C数字输出接口(工作到400Kz) MPL3115A2_breakout SCH MPL3115A2_breakout PCB EasyEDA项目链接: https://easyeda.com/oshw/Altitude_Pressure_Sensor_Breakout_MPL3115A2_Open_hardware-NEMGASMGY EasyEDA链接: https://easyeda.com |
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