GY-45 MMA8452 Module

The GY-45 MMA8452 Module – Digital Tri-Axial Accelerometer Module – Precision Inclination Module is an innovative low-power, three-axis, capacitive micromachined accelerometer with 12 bits of resolution. This accelerometer is packed with embedded functions with flexible user-programmable options configurable to two interrupt pins. Embedded interrupt functions allow for overall power savings relieving the host processor from continuously polling data.

The GY-45 MMA8452 Module has user-selectable complete scales of ±2g/±4g/±8g with high pass filtered data and non filtered data available in real-time.

The Device can be configured to generate inertial wake-up interrupt signals from any combination of the configurable embedded functions allowing the MMA8452 to monitor events and remain in a low power mode during periods of inactivity. 2C serial bus output

Typical Applications

• eCompass applications
• Static orientation detection (Portrait/Landscape, Up/Down, Left/Right, Back/ Front position identification)
• Notebook, eReader and Laptop Tumble and Freefall Detection
• Real-time orientation detection (virtual reality and gaming 3D user position feedback)
• Real-time activity analysis (pedometer step counting, freefall drop detection for HDD, dead-reckoning GPS backup)
• Motion detection for portable product power saving (Auto-SLEEP and Auto-WAKE for cell phone, PDA, GPS, gaming)
• Shock and vibration monitoring (mechatronic compensation, shipping and warranty usage logging)
• User interface (menu scrolling by orientation change, tap detection for button replacement)

Features 

• 1.95 V to 3.6 V supply voltage
• 1.6 V to 3.6 V interface voltage
• ±2g/±4g/±8g dynamically selectable full-scale
• output Data Rates (ODR) from 1.56 Hz to 800 Hz
• 99 µg/vHz noise
• 12-bit and 8-bit digital output
• I2C digital output interface (operates to 2.25 MHz with 4.7 kO pullup)
• Two programmable interrupt pins for six interrupt sources
• Three embedded channels of motion detection
• Freefall or Motion Detection: 1 channel
• Pulse Detection: 1 channel
• Jolt Detection: 1 channel
• Orientation (Portrait/Landscape) detection with set hysteresis
• Automatic ODR change for Auto-WAKE and return to SLEEP
• High Pass Filter Data available in real-time
• Self-Test
• RoHS compliant
• Current Consumption: 6 µA – 165 µA

Package Includes 1x GY-45 MMA8452 Module 1x eight-pin 1x bent eight pins

Development  Resources: demo codes, schematics, datasheets, etc

Notes:

1. There may be slight size deviations due to manual measurement, different measuring methods, and tools.
2. The picture may not reflect the actual colour of the item because of different photographing light, angles, and display monitors.

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