Display prices in

Home | Product Categories | 3-axis | SEN-10955

Triple Axis Accelerometer Breakout - MMA8452Q

Description: This breakout board makes it easy to use the tiny MMA8452Q accelerometer in your project. The MMA8452Q is a smart low-power, three-axis, capacitive micro-machined 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 MMA8452Q has user selectable full scales of ±2g/±4g/±8g with high pass filtered data as well as non filtered data available real-time. The device can be configured to generate inertial wake-up interrupt signals from any combination of the configurable embedded functions allowing the MMA8452Q to monitor events and remain in a low power mode during periods of inactivity.

This board breaks out the ground, power, I2C and two external interrupt pins.

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
12-bit and 8-bit digital output
I2C digital output interface (operates to 2.25 MHz with 4.7 kΩ pullup)
Two programmable interrupt pins for six interrupt sources
Three embedded channels of motion detection
Orientation (Portrait/Landscape) detection with set hysteresis
High Pass Filter Data available real-time
Current Consumption: 6 μA – 165 μA

Documents:

Pricing

images are CC BY-NC-SA 3.0

ASCII version

Comments 12 comments

Minerva | last month 2

What are the pros or cons of this device relative to other digital-interface 3-axis accelerometer chips that are available?
blahblahblah | about 3 months ago 1

You guys have so many neat accelerometers that I imagine some people have a hard time choosing. Can you do some kind of comparison table? That would be awesome! Thanks,
- Taper | about 3 months ago 2
  
  There is this buying guide, though I’m not sure how up-to-date it is (and it obviously doesn’t have the MMA8452Q on it yet).
  - blahblahblah | about 3 months ago 1
    
    Oh, cool, thanks!
rcheli | about 3 months ago 1

I have sooo been waiting for this: a cheap, 3 axis accelerometer on a breakout board. Yay!
Paradoxial | about 3 months ago 1

MattTheGeek designed a similar board.
AdrianFreed | about 2 months ago 1

Hi, Please rev. this to follow the manufacturers recommendations (i.e. 4.7k pullups, non central placement, no holes near package, traces off all pads) from AN4077.

Can you make one with the higher res. MMA8451Q too? It would be good to have the 5v regulator on there too like the competitive board from LongQi
- MattTheGeek | about 2 months ago 1
  
  The higher res. version is the MMA8453Q
  - AdrianFreed | about 2 months ago * 1
    
    No, that is the 10bit one. the 14-bit one is the MMA8451Q
    
    *MMA8450Q:Xtrinsic Low-power, 3-axis Xtrinsic
    
    *MMA8451Q:Xtrinsic 3-Axis, 14-bit
    
    *MMA8452Q:Xtrinsic 3-Axis, 12-bit
    
    *MMA8453Q:Xtrinsic 3-Axis, 10-bit Digital
    
    The datasheets are remarkably similar and the core ADC is 14-bit so there must be some quality sorting going on?
    
    Incidentally Matt your board also doesn’t follow the manufacturers guidelines w.r.t. nearby holes and centrality of the package.
Tonkabot | about 2 months ago 1

What are the dimensions of the board? .7x.7 ? It would be nice if that was part of the specs or features or something. I don’t want to have to load the eagle files to figure it out.

Also, AdrianFreed has a good point and you should update the board to follow MFG guidelines.

I am putting this on my current design because our tech can’t solder LCC’s by hand.
macrometa | about a month ago 1

Hey guys,

I’ve triple checked my connections between this board and the UNO:

V3.3->3.3 GND –> GND A5 –> SCL A4 –> SDA 2 –> i1 3 –> i2

The example program fails because the WHO_AM_I register (0x0D) is returning 0x39, not 0x2A. Any idea what I could be doing wrong?
- macrometa | about a month ago 1
  
  Nevermind, I neglected to see that I needed to change #define SA to 1