Capteur MMA8452Q

Other Hardware Sensors
1

Hello,
I have this program but there're error but i don't know how correct these errors, help me please.

/*
MMA8452Q Basic Example Code
Nathan Seidle
SparkFun Electronics
November 5, 2012

License: This code is public domain but you buy me a beer if you use this and we meet someday (Beerware license).

This example code shows how to read the X/Y/Z accelerations and basic functions of the MMA5842.

Ligações :
MMA8452 Arduino
3.3V ----------------------------- 3.3V
SDA -----------^^(330)^^---------- A4
SCL -----------^^(330)^^---------- A5
GND ------------------------------ GND

*/

#include <Wire.h>
#include "MMA8452.h"

void setup()
{
Serial.begin(57600);
Serial.println("Exemplo de uso do acelerometro MMA8452");
Wire.begin(); //Inicializa a comunicação I²C
int MMA8452(); //Testa e inicializa o MMA8452
}

void loop()
{
int acelCont[3]; // Váriável que armazena os valores das leituras de 12-bit
readAccelData(acelCont); // Leitura de todos os eixos do sensor
float acelG[3]; // Variável para armazenar os valores da aceleração em g (9,8 m/s²)

// Calcula a aceleração e separa na matriz acelG
for (int i = 0 ; i < 3 ; i++)
{
acelG = (float) acelCont / ((1<<12)/(2*GSCALE)); // Pega o valor da e
* }*
* // Imprimi os valores na Serial*
* for (int i = 0 ; i < 3 ; i++)*
* {*
_ Serial.print(acelG*, 4); // Imprime os valores de cada eixo na serial (XYZ)
 Serial.print("\t"); // Tabulação entre as leituras*
* }
 Serial.println(); //Pula Linha*
* delay(10); // Delay para ajudar na visibilidade das leitura*
}_

2

but i don't know how correct these errors

Which errors?

Maybe the compiler doesn't like italics - use CODE TAGS.

3

http://hpics.li/697e36d

http://hpics.li/eb4b2c1

Here, there're errors, i want to read information out of this accelerometer

4 
int MMA8452(); //Testa e inicializa o MMA8452

This cannot possibly be correct.

If MMA8452 is the class which defines/controls the device, you are more likely to need something like

MMA8452 mySensor() ;

void setup()
{
   // ... other stuff
   mySensor.init();
}

void loop()
{
     float accel = mySensor.getData() ;    // or something like that -  check what function the class MMA8452 defines         
}

You appear to be quite confused about C/C++. I suggest you download a good book and study it.