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| 型号： | ATAVRSBIN1 |
| 厂商： | Atmel |
| 文件页数： | 11/37页 |
| 文件大小： | 0K |
| 描述： | INERTIAL ONE SENSOR BOARD |
| 产品培训模块： | Sensors Xplained |
| 标准包装： | 1 |
| 系列： | Sensors Xplained |
| 传感器类型： | 加速计，陀螺仪，电子罗盘，温度 |
| 接口： | I²C |
| 电源电压： | 3.3V |
| 嵌入式： | 否 |
| 已供物品： | 板 |
| 已用 IC / 零件： | AK8975，BMA150，ITG-3200 |
| 相关产品： | 828-1003-6-ND - 3-AXIS ACCELEROMETER DIGITAL I/F 828-1003-1-ND - 3-AXIS ACCELEROMETER DIGITAL I/F 828-1003-2-ND - 3-AXIS ACCELEROMETER DIGITAL I/F |
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Atmel AVR4016
6 Control interfaces
The Atmel Sensors Xplained software supports both control and measurement
operations for sensors in a device-independent manner whenever possible. This
section describes various sensor control interfaces that allow your application to
modify the behavior of the sensor device.
6.1 Sensor range
Sensor devices often provide multiple measurement ranges, which allow the device’s
available output resolution to be matched to the level of the physical conditions being
measured. The sensitivity of the device is changed so that the full-scale output range
of the device corresponds to different actual input level ranges. Therefore, the “raw”
output value from the device for a given input level will change based on the range
settings.
The Sensors Xplained sensor library functions automatically adjust their output
scaling when the device’s range is changed, and so the scaled numeric values that
are returned to your application will be the same, subject to the limitations of the
device resolution.
The sensor_set_range() function can be used to change the sensor range
dynamically during execution of your application. The function takes the following
form:
sensor_set_range (&device, range);
where device is the device descriptor of the device, and range is the range to be
used. The range value is expressed in the same units used for normal, scaled output
from the device (for example, milli-g for an accelerometer or Pascal for a pressure
sensor). The range value is the number of measurement units from zero to full scale
(positive or negative). For example, to set the range of an accelerometer device to
cover -2000 to +2000 milli-g, the value of range would be 2000.
The value specified for range must match the settings that are valid for the device, or
else an error is indicated (SENSOR_ERR_PARAMS).
See the individual driver descriptions in Chapter 9 , page 27 for more information on
valid range settings, default values, etc.
6.2 Sampling bandwidth
Sensor devices generally provide several different sampling frequencies or
bandwidths. These different settings allow control over the tradeoff between
measurement time and the stability (noise level) of the readings. Shorter
measurement periods (higher sampling frequencies) reduce the time and power
required to obtain each measurement, but the measured values will show higher
variability, which appears as “noise” in the output values.
The sensor_set_bandwidth() function can be used to change the sensor sampling
bandwidth dynamically during execution of your application. The function takes the
following form:
sensor_set_bandwidth (&device, bandwidth);
where device is the device descriptor of the device, and bandwidth is the frequency
to be used, in Hz.
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8367B-AVR-06/11
相关PDF资料 |
PDF描述 |
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| ATAVRSBIN2 | INERTIAL TWO SENSOR BOARD |
| ATAVRSBLP1 | LIGHT AND PROXIMITY SENSOR BOARD |
| ATAVRSBPR1 | BAROMETRIC PRESSURE ONE SNSR BRD |
| ATQT600 | KIT EVAL TOUCH FOR QT600 |
| ATU6-P305T-R | CABLE CAT6 FULL-BOX 305M GRAY |
相关代理商/技术参数 |
参数描述 |
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| ATAVRSBIN2 | 功能描述:多功能传感器开发工具 9DOF Inertial Sensor Board 2 RoHS:否 制造商:Texas Instruments 工具用于评估:LMP91200 接口类型:SPI 工作电压:1.8 V to 5.5 V 最大工作温度: |
| ATAVRSBLP1 | 功能描述:光学传感器开发工具 Ambient Light and Proximity Snsr Brd RoHS:否 制造商:ams 工具用于评估: 接口类型: 最大工作温度: |
| ATAVRSBPR1 | 功能描述:压力传感器开发工具 Barometric Pressure Sensor Board 1 RoHS:否 制造商:Freescale Semiconductor 工具用于评估:MPL3115A2 接口类型:USB 最大工作温度: |
| ATAVRSECURITYX | 功能描述:安全/ 验证开发工具 Security Module Kit for Xplain Series RoHS:否 制造商:Digi International 产品:Development Kits 工具用于评估:XEB-AW140 接口类型:SPI, USB 工作电源电压:3.1 V to 3.6 V |
| ATAVRSMD | 功能描述:ADAPTER KIT SMD ICE200 RoHS:否 类别:编程器，开发系统 >> 过时/停产零件编号 系列:- 标准包装:1 系列:- 类型:MCU 适用于相关产品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、缆线、软件、数据表和用户手册 其它名称:520-1035 |
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