IOT Sensor’s Part 2: Accelerometers, Magnetometers, Time of light Sensors.

Below are the list of sensor’s we are going to discuss:

• LIS3MDL: Digital output magnetic sensor: ultra-low-power, high-performance 3-axis magnetometer
• LIS2DW12: MEMS digital output motion sensor: high-performance ultra-low-power 3-axis “femto” accelerometer
• LSM6DSO: iNEMO inertial module: always-on 3D accelerometer and 3D gyroscope
• VL53L1X: A new generation, long distance ranging Time-of-Flight sensor based on ST’s FlightSense™ technology

LIS3MDL: Digital output magnetic sensor: ultra-low-power, high-performance 3-axis magnetometer

Datasheet: https://www.st.com/resource/en/datasheet/lis3mdl.pdf

Communication: I2C & SPI

Features:

• Wide supply voltage, 1.9 V to 3.6 V
•  Independent IO supply (1.8 V)
•  ±4/±8/±12/±16 gauss selectable magnetic full scales
•  Continuous and single-conversion modes
•  16-bit data output
•  Interrupt generator
•  Self-test
•  I2C/SPI digital output interface
•  Power-down mode / low-power mode
•  ECOPACK®, RoHS and “Green” compliant

Applications:

• Magnetometers
• compasses

Mechanical Specification:

Price:

Range	Unit Price	Savings
1 – 9	$1.59	0%
10 – 99	$1.35	15%
100 – 499	$1.08	32%
500	$0.94	41%

—————————————————————————————————

LIS2DW12: MEMS digital output motion sensor: high-performance ultra-low-power 3-axis “femto” accelerometer

Datasheet: https://www.st.com/resource/en/datasheet/lis2dw12.pdf

Communication: I2C & SPI

Features:

•  Ultra-low power consumption: 50 nA in power-down mode, below 1 µA in active low-power mode
•  Very low noise: down to 1.3 mg RMS in low-power mode
•  Multiple operating modes with multiple bandwidths
•  Android stationary detection, motion detection
•  Supply voltage, 1.62 V to 3.6 V
•  Independent IO supply
•  ±2g/±4g/±8g/±16g full scale
•  High-speed I²C/SPI digital output interface
•  Single data conversion on demand
•  16-bit data output
•  Embedded temperature sensor
•  Self-test
•  32-level FIFO
•  10000 g high shock survivability
•  ECOPACK, RoHS and “Green” compliant

Applications:

• Motion detection for wearables
• Gesture recognition and gaming
• Motion-activated functions and user interfaces
• Display orientation
• Tap/double-tap recognition
• Free-fall detection
• Smart power saving for handheld devices
• Hearing aids
• Portable healthcare devices
• Wireless sensor nodes
• Motion-enabled metering devices

Mechanical Specifications:

Prices:

Quantity	$ per Unit	Savings
1 – 9	$2.07	0%
10 – 99	$1.75	15%
100 – 499	$1.50	28%
500	$1.24	40%
500 +	Contact Sales

—————————————————————————————————————————-

LSM6DSO iNEMO inertial module: always-on 3D accelerometer and 3D gyroscope

Datasheets: https://www.st.com/resource/en/datasheet/lsm6dso.pdf

Communication: I2C & SPI

Features:

• Power consumption: 0.55 mA in combo high-performance mode
• “Always-on” experience with low power consumption for both accelerometer and gyroscope
• Smart FIFO up to 9 kbyte
• Android compliant
• ±2/±4/±8/±16 g full scale
• ±125/±250/±500/±1000/±2000 dps full scale
• Analog supply voltage: 1.71 V to 3.6 V
• Independent IO supply (1.62 V)
• Compact footprint: 2.5 mm x 3 mm x 0.83 mm
• SPI / I²C & MIPI I3CSM serial interface with main processor data synchronization
• Auxiliary SPI for OIS data output for gyroscope and accelerometer
• Advanced pedometer, step detector and step counter
• Significant Motion Detection, Tilt detection
• Standard interrupts: free-fall, wakeup, 6D/4D orientation, click and double-click
• Programmable Finite State Machine: accelerometer, gyroscope and external sensors
• Embedded temperature sensor
• ECOPACK®, RoHS and “Green” compliant

Applications:

• Motion tracking and gesture detection
• Sensor hub
• Indoor navigation
• IoT and connected devices
• Smart power saving for handheld devices
• EIS and OIS for camera applications
• Vibration monitoring and compensation

Mechanical Specification:

—————————————————————————————————————————

VL53L1X: A new generation, long distance ranging Time-of-Flight sensor based on ST’s FlightSense™ technology

Datasheet: https://www.st.com/resource/en/datasheet/vl53l1x.pdf

Communication: I2C

Features:

• Fully integrated miniature module
  • – Size: 4.9×2.5×1.56 mm
  • – Emitter: 940 nm invisible laser (Class1)
  • – SPAD (single photon avalanche diode) receiving array with integrated lens
  • – Low-power microcontroller running advanced digital firmware
• Pin-to-pin compatible with the VL53L0X FlightSense™ ranging sensor
• Fast and accurate long distance ranging
  • – Up to 400 cm distance measurement
  • – Up to 50 Hz ranging frequency
• Typical full field-of-view (FoV): 27 °
• Programmable region-of-interest (ROI) size on the receiving array, allowing the sensor FoV to be reduced
• Programmable ROI position on the receiving array, providing multizone operation control from the host
• Easy integration
  • – Single reflowable component
  • – Can be hidden behind many cover window materials
  • – Software driver and code examples for turnkey ranging
  • – Single power supply (2v8)
  • – I²C interface (up to 400 kHz)
  • – Shutdown and interrupt pins

Applications:

• User detection (Autonomous low-power mode) to power on/off and lock/unlock devices like personal computers/laptops and the IoT
• Service robots and vacuum cleaners (long distance and fast obstacle detection)
• Drones (landing assistance, hovering, ceiling detection)
• Smart shelves and vending machines (goods inventory monitoring)
• Sanitary (robust user detection whatever the target reflectance)
• Smart building and smart lighting (people detection, gesture control)
• 1 D gesture recognition
• Laser assisted autofocus which enhances the camera autofocus system speed and robustness, especially in difficult scenes (low light and low
• contrast) and video focus tracking assistance

Price:

Quantity	$ per Unit	Savings
1 – 9	$6.30	0%
10 – 24	$5.69	10%
25 – 99	$5.43	14%
100 – 249	$4.71	25%
250 – 499	$4.51	28%
500	$4.11	35%
500 +	Contact Sales

References : https://www.st.com/resource/en/datasheet/lis3mdl.pdf,https://www.st.com/resource/en/datasheet/vl53l1x.pdf,https://www.st.com/resource/en/datasheet/lis2dw12.pdf,https://www.st.com/resource/en/datasheet/lsm6dso.pdf