Joy-it SEN-MMA8452Q Handleiding

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www.joy it.net-

Pascalstr. 8 47506 Neukirchen Vluyn-

3 AXSIS DIGITAL ACCELERATION SENSOR MODULE-

SEN MMA5482Q-

1. GENERAL INFORMATION

Dear customer,

Thank you very much for choosing our product. In the following, we will

show you what you need to consider during commissioning and use.

Should you unexpectedly encounter problems during use, please do not

hesitate to contact us.

www.joy it.net-

Pascalstr. 8 47506 Neukirchen Vluyn-

3. COMMISSIONING WITH THE RASPBERRY PI

Wiring:

Installation:

To be able to use the ADC, you have to enable I2C.

Enter the following command:

Now navigate to the point > and enable the I2C interface.Interfacing Options -I2C

sudo raspi config-

Raspberry Pi MMA8452Q

GND (Pin 6) GND

3v3 (Pin 1) VCC

SDA (Pin 3) SDA

SCL (Pin 5) SCL

www.joy it.net-

Pascalstr. 8 47506 Neukirchen Vluyn-

Code example:

# Distributed with a free will license.-

# Use it any way you want, profit or free, provided it fits in the licenses of its

# associated works.

import smbus

import time

# Get I2C bus

bus = smbus.SMBus(1)

# MMA8452Q address, 0x1D(28)

# Select Control register, 0x2A(42)

# 0x00(00) StandBy mode

bus.write_byte_data( , , 0x1D 0x2A 0x00)

# MMA8452Q address, 0x1D(28)

# Select Control register, 0x2A(42)

# 0x01(01) Active mode

bus.write_byte_data( , , 0x1D 0x2A 0x01)

# MMA8452Q address, 0x1D(28)

# Select Configuration register, 0x0E(14)

# 0x00(00) Set range to +/- 2g

bus.write_byte_data( , , 0x1D 0x0E 0x00)

time.sleep(0.5)

# MMA8452Q address, 0x1D(28)

# Read data back from 0x00(0), 7 bytes

# Status register, X Axis MSB, X- - - - - -Axis LSB, Y Axis MSB, Y Axis LSB, Z Axis MSB, Z Axis LSB

data = bus.read_i2c_block_data(0x1D, , 0x00 7)

# Convert the data

xAccl = (data[ ] * 1 256 16 + data[2]) /

if xAccl > :2047

- xAccl = 4096

yAccl = (data[ ] * 3 256 16 + data[4]) /

if yAccl > :2047

- yAccl = 4096

zAccl = (data[ ] * 5 256 16 + data[6]) /

if zAccl > :2047

- zAccl = 4096

# Output data to screen

print "Acceleration in X-Axis : %d" %xAccl

print "Acceleration in Y-Axis : %d" %yAccl

print "Acceleration in Z-Axis : %d" %zAccl

Now create a file with the extension ".py" and copy the code example into it.

Then execute this file with the console command shown below:

You should now see the values of the three axes as a console output.

sudo python file- name.py

Product specificaties

Merk:	Joy-it
Categorie:	Niet gecategoriseerd
Model:	SEN-MMA8452Q
Kleur van het product:	Black, Gold, Silver
Breedte:	350 mm
Diepte:	20 mm
Hoogte:	7 mm
Compatibiliteit:	Arduino/Raspberry Pi
Type product:	Versnellingssensor