void MMA7455::begin() {
#else
void MMA7455::begin(uint8_t pin_sda, uint8_t pin_scl) {
#endif
int error;
uint8_t c;
#if defined __AVR__
Wire.begin();
#else
_pin_sda = pin_sda;
_pin_scl = pin_scl;
// Initialize the 'Wire' class for I2C-bus communication.
Wire.begin(_pin_sda,_pin_scl);
#endif
// Initialize the MMA7455, and set the offset.
error = MMA7455_init();
if (error == 0)
Serial.println("The MMA7455 is okay");
else
Serial.println("Check your wiring !");
// Read the Status Register
MMA7455_read(MMA7455_STATUS, &c, 1);
// Read the "Who am I" value
MMA7455_read(MMA7455_WHOAMI, &c, 1);
// Read the optional temperature output value (I always read zero)
MMA7455_read(MMA7455_TOUT, &c, 1);
}
int main() // Main function
{
MMA7455_init(DATA, CLK, ENABLE);
MMA7455_setOffsetX(0);
MMA7455_setOffsetY(0);
MMA7455_setOffsetZ(0);
while(1) // Main loop
{
signed char x, y, z;
MMA7455_gRange(2);
MMA7455_getxyz8(&x, &y, &z);
print("%c Bits = 8, Range = 2 g, +/- 1 g = +/- 64\n", // Display measurements
HOME);
print(" x = %d, y = %d, z = %d %c \n", // Display measurements
x, y, z, CLREOL);
MMA7455_gRange(4);
MMA7455_getxyz8(&x, &y, &z);
print(" Bits = 8, Range = 4 g, +/- 1 g = +/- 32\n");
print(" x = %d, y = %d, z = %d %c \n", // Display measurements
x, y, z, CLREOL);
MMA7455_gRange(8);
MMA7455_getxyz8(&x, &y, &z);
print(" Bits = 8, Range = 8 g, +/- 1 g = +/- 16\n");
print(" x = %d, y = %d, z = %d %c \n", // Display measurements
x, y, z, CLREOL);
signed short xs, ys, zs;
MMA7455_getxyz10(&xs, &ys, &zs);
print(" Bits = 10, Range = 8 g, +/- 1 g = +/- 64\n");
print(" x = %d, y = %d, z = %d %c \n", // Display measurements
xs, ys, zs, CLREOL);
pause(500); // Wait 0.5 s before repeat
}
}
