Serial output ceases after accelerometer.init()

[craigfoo]

Hello! I'm trying out your library and I'm just trying to get the simple example working. It compiles just fine but when I run it, all the Serial output doesn't get printed after the accelerometer.init(). I get the first print out but then nothing. I'm using hardware serial so I commented out the SoftwareSerial stuff, not sure why that would make a difference though.

// Basic demo for accelerometer readings from Adafruit LIS3DH
#include <Arduino.h>
#include <Wire.h>
#include <MMA8452.h>

#include <SoftwareSerial.h>

MMA8452 accelerometer;

// SoftwareSerial Serial(13, 12);

void setup()
{
	Serial.begin(9600);
	Serial.print(F("Initializing MMA8452Q: "));

	Wire.begin();

	bool initialized = accelerometer.init(); 
	
	if (initialized)
	{
		Serial.println(F("ok"));

		accelerometer.setDataRate(MMA_100hz);
		accelerometer.setRange(MMA_RANGE_2G);
	}
	else
	{
		Serial.println(F("failed. Check connections."));
		while (true) {};
	}
}

void loop()
{
	float x;
	float y;
	float z;

	accelerometer.getAcceleration(&x, &y, &z);

	Serial.print(x, 5);
	Serial.print(F(" "));
	Serial.print(y, 5);
	Serial.print(F(" "));
	Serial.print(z, 5);
	Serial.println();

	delay(10);
}

Serial Output:
Initializing MMA8452Q:

[akupila]

It's been a very long time since i looked at this, so i'm afraid i don't think i can help too much here..

Looking at the code, the init() reads the WHO_AM_I register, which ends up calling readMultiple. This is a low level i/o function for reading data from the accelerometer. This blocks until data is available, which could explain what you're seeing. As this is I2C, i'd first check the wiring and ensure there are pull-up resistors on the lines. Other than that, i'm not really sure