Mikroe MMA8491Q User manual

Brand: Mikroe

Model: MMA8491Q

Type: User manual

Mikroe MMA8491Q is a multifunctional 3-axis digital accelerometer and tilt sensor that can be used for various applications such as orientation sensing, motion detection, and vibration monitoring. It communicates with microcontrollers through I2C and features a wide measurement range of ±8g with a resolution of 1 mg/LSB. The device also includes three detection outputs for tilt sensing along the X, Y, and Z axes, making it ideal for applications that require tilt or orientation detection.

2 3

2. Soldering the headers

3. Plugging the board in

Once you have soldered the headers your

board is ready to be placed into the desired

mikroBUS™ socket. Make sure to align the cut

in the lower-right part of the board with the

markings on the silkscreen at the mikroBUS™

socket. If all the pins are aligned

correctly, push the board all the

way into the socket.

Turn the board upward again. Make sure

to align the headers so that they are

perpendicular to the board, then solder the

pins carefully.

Turn the board upside down so that

the bottom side is facing you upwards.

Place shorter pins of the header into the

appropriate soldering pads.

Before using your click board™, make sure

to solder 1x8 male headers to both left and

right side of the board. Two 1x8 male headers

are included with the board in the package.

4. Essential features

To use TILT-n-SHAKE click as an accelerom-

eter, keep the enable pin (EN) pulled to logic

high. The 14-bit digital output has over ±8g

full-scale range with 1 mg/LSB sensitivity,

and a fast output time of about 700 micro-

seconds. As a tilt sensor, the MMA8491Q has

three detection outputs, one for each axis:

Xout, Yout and Zout. Three onboard LEDs will

also signal the tilt orientation.

TILT-n-SHAKE click carries Freescale’s

MMA8491Q IC. It’s a multifunctional 3-axis

digital accelerometer that can also be

congured as a 45-degree Tilt sensor. As

an accelerometer, it communicates with the

target MCU through mikroBUS™ I2C pins (SCL,

SDA). When congured as a Tilt sensor, the

click board needs only one output pin — INT

(interrupt). TILT-n-SHAKE click is designed

to use a 3.3V power supply only.

1. Introduction

TILTnSHAKE click manual

ver 1.00

0100000081266

click

BOARD™

www.mikroe.com

TILT-n-SHAKE click

Downloaded from Arrow.com.

100nF

4.7uF

VCC-3.3V

2K2

RST

SCK

MOSI

MISO

+3.3V

GND

PWM

INT

SCL

SDA

+5V

GND

MIKROBUS

DEVICE CONN.

VCC-3.3V

VDD

SDA

BYP

SCL

GND

Zout

Yout

Xout

U1 MMA8491Q

SCL

SDA

PWR

SDA

SCL

VCC-3.3V

4K7 4K7

VCC-3.3V

Zout

Yout

Xout

2K2

HD1

R7 470

R8 470

R9 470

PDTC114EU

VCC-3.3V

R10

4K7

INT

VCC-3.3V

8. Code examples

MikroElektronika oers free tech support

(www.mikroe.com/support) until the end of

the product’s lifetime, so if something goes

wrong, we’re ready and willing to help!

Once you have done all the necessary

preparations, it’s time to get your click board™

up and running. We have provided examples

for mikroC™, mikroBasic™ and mikroPascal™

compilers on our Libstock website. Just

download them and you are ready to start.

.com

6. Dimensions

MikroElektronika assumes no responsibility

or liability for any errors or inaccuracies

that may appear in the present document.

Specication and information contained in

the present schematic are subject to change

at any time without notice.

mm mils

LENGTH 42.9 1690

WIDTH 25.4 1000

HEIGHT* 3.3 130

5. Schematic

9. Support

* without headers

10. Disclaimer

Depending on your ap-

plications you may not

need the tilt sensor to

react to every axis of

movement. You can

reduce its sensitivity to

two, or just one dimensions, by unsoldering

one of the three INT SEL jumpers.

25.4 mm / 1000 mils

42.9 mm / 1690 mils

7. INT SEL jumpers

Downloaded from Arrow.com.Downloaded from Arrow.com.

Mikroe MMA8491Q User manual

Mikroe MMA8491Q User manual

Mikroe MMA8491Q User manual

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