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MMA7361 3-Axis Accelerometer Module
Addicore MMA7361 3-Axis Accelerometer module with on-board voltage regulator


 
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Price: $3.75

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The MMA7361 is a unique accelerometer in that its outputs are analog signals. Each of the three axes (X, Y, Z) have their own dedicated output pin. Connect these to the analog inputs of your Arduino or other controller to measure the acceleration value.

The MMA7361 is a 3.3V device but this board includes an on-board voltage regulator which allows you to power it from 5V as well as 3.3V.

Product Contents:
  • 1 — MMA7361 3-Axis Accelerometer module
Features:
  • 3-axis micro-capacitive acceleration sensor
  • On-board voltage regulator allows for optional supply voltages up to 7V
  • Two selectable range options: ±1.5g or ±6g. Selectable using the module's GS pin
  • Breadboard compatible pins
  • Sleep mode easily enabled using the module's SL pin (pull low to enable sleep)
  • Built in self-test abilities. To use the self-test, hold module upside down to put a force of -1g on the Z-axis and pull the ST pin high to initiate self test. The self-test feature of the MMA7361 then applies an electrostatic force to each axis to cause it to deflect. The Z-axis is trimmed to deflect +1g, which you can measure on the Z pin. This feature can be used for calibration (refer to datasheet)
  • Signal conditioning with low pass filter
  • 0g-Detect for freefall detection. The 0G pin will go high when 0g is detected on all 3 axes
Specifications:
Supply Voltage
Connected to 3V3 pin 2.2V - 3.6V
Connected to 5V pin 4V - 7V
Current Usage ~400µA, 3µA in sleep
Selectable Sensitivity ±1.5g, ±6g
Sensitivity 800mV/g @ 1.5g
Turn On Time 0.5ms Enable Response Time
Dimensions (Excluding Pins)
Length 28mm (1.11")
Width 17mm (0.67")
Height 3.3mm (0.13")
WEIGHT 2.5g (0.09oz)
Pin Assignments:
Label Pin Assignment
X Analog output for X-axis
Y Analog output for Y-axis
Z Analog output for Z-axis
SL (Sleep) Pull low to put the chip into sleep mode or pull high to wake chip
0G (0g detection) Pin will go high when zero gravity (0g) is detected on all 3 axes; useful for detecting free fall
5V Input voltage (4V - 7V); connected to on-board voltage regulator
3V3 Input voltage (2.2V - 3.6V); connected directly to VDD of MMA7361
GND Ground
GS Sensitivity select - selects between two sensitivities; for 1.5g mode leave pin un-connected or pull pin low, for 6g mode pull pin high
ST Self-Test Pin - pull high to initiate self test, hold module upside down to put a force of -1g on the Z-axis. The MMA7361 then applies an electrostatic force to each axis to cause it to deflect. The Z-axis is trimmed to deflect +1g, which you can measure on the Z pin. This feature can be used for calibration (refer to datasheet)

Average Rating: 4.5 of 5 Total Reviews: 3 Write a review

  0 of 0 people found the following review helpful:
 
Simple analog accelerometer but serves my pupose February 24, 2016
By: Jo Soo from Palo Alto, CA United States  
This is a analog accelerometer, so A/D converter will need to be used for the x/y/z readings.  But I'm more interested in the 0G interrupt pin which services my purpose.

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  0 of 0 people found the following review helpful:
 
The service and the products are great October 11, 2015
By: Mario Badilla from Savannah, GA United States  
The price is very reasonable and the shipping really fast. The products arrived as planned. This is a good option for bying fast prototyping electronics.

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  0 of 0 people found the following review helpful:
 
Tested out - still trying to include in something August 20, 2015
By: Anonymous Person from Castle Rock, CO United States  
Looking at various projects to use in.

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