Tag Archives: accelerometer

Motion sensor offers low-power settings

Susan Nordyk @ edn.com writes:

Small enough for wearable devices, STMicroelectronics’ LIS2DW12 three-axis accelerometer draws only 50 nA in standby mode and 380 nA in low-power mode at a 1.6-Hz output data rate, adding negligible load on the battery. Operating from a supply voltage of 1.62 to 3.6 V, the LIS2DW12 enables extended operation from small coin or button cells.

Motion sensor offers low-power settings – [Link]

Smart sensors track fitness activity

STMicroelectronics’ LIS2DS12 3-axis accelerometer, LSM6DSL/M 6-axis inertial module, and new LSM303AH eCompass enable always-on fitness-tracking applications to operate longer and record progress more accurately. by Susan Nordyk @ edn.com:

These smart sensors help track movement continuously with minimal impact on device battery life by performing various motion-related calculations on-chip, instead of using the main system processor.

Smart sensors track fitness activity – [Link]

+/- 1.7g Dual-Axis IMEMS Accelerometer Using ADXL203

The ADXL203 Module  is high precision, low power, complete dual-axis accelerometers with signal conditioned voltage outputs, all on a single, monolithic IC. The ADXL203 measure acceleration with a full-scale range of ±1.7 g, ±5 g, or ±18 g. The ADXL203 can measure both dynamic acceleration (for example, vibration) and static acceleration (for example, gravity).The typical noise floor is 110 μg/√Hz, allowing signals below 1 mg (0.06° of inclination) to be resolved in tilt sensing applications using narrow bandwidths (<60 Hz).The user selects the bandwidth of the accelerometer using Capacitor CX and Capacitor CY at the XOUT and YOUT pins. Bandwidths of 0.5 Hz to 2.5 kHz can be selected to suit the application.

+/- 1.7g Dual-Axis IMEMS Accelerometer Using ADXL203 – [Link]

Embedded orientation detection using the MMA8450Q

an_nxp_an3915

NXP’s accelerometer chip MMA8450Q, provides orientation detection on handheld devices:

This application note targets the portrait/landscape orientation detection feature which has become standard in many hand-held electronic devices. Additionally, this application note aims to explain uses as well as highlight some of the challenges of designing an embedded algorithm into the sensor. Included in content, the embedded settings of the MMA8450Q are explained and detailed for implementation.

Embedded orientation detection using the MMA8450Q – [Link]

BMX160 from Bosch Sensortec, a New Smallest 9-axis Motion Sensor

Bosch Sensortec announced a new 9-axis motion sensor, the BMX160, on June 21, 2016. BMX160 targets smartphones, smartwatches and other wearables applications. It has a low power consumption (580 μA), which is proper for long working time on battery for this type of applications, also BMX160 is fully Android Marshmallow compliant.

BMX160 integrates 3-axis accelerometer, gyroscope and geomagnetic. This new sensor comes in 14-pin 2.5 × 3.0 × 0.95 mm³ LGA package and Sensortec claims that it’s the world’s smallest 9-axis motion sensor until now.

BMX160BMX160 is fully compatible to BMI160 to easy upgrade your design from the 6-axes measurement unit to the 9-axes one. It has 1024 byte FIFO buffer and a wide VDD voltage range from 1.71V to 3.6V and a VDDIO range from 1.2V to 3.6V.

[press release]

[Product Flyer]

Tiny motion sensor fits wearable devices

pro_BMX160_m_2

by Susan Nordyk @ edn.com:

Bosch Sensortec’s BMX160 is a 9-axis motion sensor touted as the smallest in the industry for wearable and augmented/virtual-reality devices. The miniature device is housed in a 2.5×3.0×0.95-mm, 14-pin LGA package, small enough for smartphones, smart watches, fitness trackers, and even smart eyewear and jewelry.

Combining an accelerometer, gyroscope, and geomagnetic sensor, the BMX160 meets the increasingly more stringent low-power requirements required by wearable devices. The BMX160 reduces power consumption to below 1.5 mA and effectively replaces the mainstream two-component design, which employs a 6-axis inertial measurement unit and a 3-axis geomagnetic sensor.

Tiny motion sensor fits wearable devices – [Link]

LSM6DSL – 3D accelerometer and 3D gyroscope

P3797D-Low-Power-6-Axis-MEMS-Modules-IMAGE

Two low-power 6-axis inertial modules introduced from STMicroelectronics, the LSM6DSL and LSM6DSM. Both they pack a 3-D digital accelerometer and a 3-D digital gyroscope in a miniature package. These modules consume 0.4 mA in combo normal mode and 0.65 mA in combo high-performance mode, cutting power consumption by as much as 50% over their current predecessors. The LSM6DSL has a full-scale acceleration range of ±2/±4/±8/±16 g and an angular rate range of ±125/±245/±500/±1000/±2000 dps.

LSM6DSL – 3D accelerometer and 3D gyroscope – [Link]

Datalogging Accelerometer Data To An SDCard

msp430_datalogger_sdcard

MindForge @ 43oh.com build a datalogger board which logs accelerometer values on a SD Card. The datalogger is built around an MSP430G2755 microcontroller and ADXL335 accelerometer sensor from Analog Devices.

his project started as an EMG datalogger to study my dad’s Parkinson’s disease, but after some testing I determined wearing electrodes wasn’t practical for the long term datalogging that I wanted to do, the data ended up very noisy due to RF interference and shoddy electrode to skin connections.
I moved away from the EMG idea and began working on a low-cost low-power consumption accelerometer datalogger instead.

Datalogging Accelerometer Data To An SDCard – [Link]

Intel and Banzi presented Arduino 101 and Genuino 101

Arduino101

by Zoe Romano @ blog.arduino.cc:

Today during Opening Conference at Maker Faire Rome, Josh Walden Senior Vice President of Intel Corporation and Massimo Banzi, co-founder of Arduino, announced the upcoming release of Arduino 101 (U.S.) and Genuino 101 (outside the U.S.). The board features a 32-bit Intel® Quark™ microcontroller for minimal power consumption, 384 kB of flash memory, 80 kB of SRAM (24kB available for sketches), an integrated DSP sensor hub, Bluetooth* Low Energy radio, and 6-axis combo sensor with accelerometer and gyroscope.

We collaborated with Intel to provide the maker community an affordable learning and development board ideal for entry-level makers and education environments and also the first widely available development board based on the tiny, low-power Intel Curie module.

Intel and Banzi presented Arduino 101 and Genuino 101 – [Link]

9-axis motion sensor and MCU reside in tiny package

Bosch-Sensortec-BMF055

by Susan Nordyk:

Housed in a 5.2×3.8×1.1-mm package, Bosch Sensortec’s BMF055 9-aix sensor combines an accelerometer, gyroscope, and magnetometer with a 32-bit MCU to enable easy programming and customization. It can be used by designers creating advanced application-specific sensor fusion algorithms for robotics, gaming, remote controls, navigation systems, drones, and human interface devices for IoT projects.

The BMF055 system-in-package integrates a triaxial 14-bit accelerometer, a triaxial 16-bit gyroscope with a range of ±2000 degrees per second, and a triaxial geomagnetic sensor. Based on a 32-bit ARM Cortex M0+ core running at up to 48 MHz, the Atmel SAM D20 microcontroller employed by the BMF055 provides in-system programmable flash memory and a rich set of peripherals and interfaces.

9-axis motion sensor and MCU reside in tiny package – [Link]