MMA7361 Triple Axis Accelerometer (HCARDU0048)

Modules for various types of sensors including accelerometers. gyro's, IR motion, etc
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admin
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MMA7361 Triple Axis Accelerometer (HCARDU0048)

Post by admin » Tue Mar 11, 2014 12:12 pm

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Description:
This module is a breakout board for the MMA7361 triple axis accelerometer. The output of this module consists of 3 analogue outputs each representing one of 3 axis. Each output will vary from 0 to 3.3V depending on the tilt angle of the module. The sensitivity of these outputs can be selected between 1.5G or 6G depending on the G-select (GS) pin (default is 1.5G). Power to the module can be either directly from its 3.3V pin, or via an on board regulator via its 5V pin.

This Accelerometer can be purchasedhere.

Pinout:

5V......Regulated 5V power
3.3V...3.3V power
GND...0V
GS.... G select: Low = 1.5g or 800mV/g High = 6g or 206mV/g
ST.....Self test mode
X.....X-axis analogue output (0 to 3.3V)
Y.....Y-axis analogue output (0 to 3.3V)
Z.....Z-axis analogue output (0 to 3.3V)
SL...Sleep mode (Low = sleep)
0G...Zero G detect. High when all 3 axis are at 0G


Datasheet:
MMA7361L.pdf
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RogerL
Posts: 9
Joined: Mon Apr 14, 2014 7:56 pm

Re: MMA7361 Triple Axis Accelerometer (HCARDU0048)

Post by RogerL » Tue Nov 18, 2014 9:17 pm

Just took delivery of one of these and it only took a few minutes to get it up and working using the AnalogReadSerial sketch from the Arduino Examples->Basics menu ......... once I realised that when it says:

SL...Sleep mode (Active low)

it means that its the sleep mode that is active when its low, not the board active when its low. I put 3.3V on the SL pin and it all worked fine. It looks like it is going to do just the job I want.

PS. I haven't tried the Zero G detect yet!

andrew
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Re: MMA7361 Triple Axis Accelerometer (HCARDU0048)

Post by andrew » Wed Nov 19, 2014 9:42 am

Thanks for pointing it out. I've just updated the first post to take the ambiguity out of it.
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