9 DoF I2C sensor stick doesn't work

Development Boards Arduino
1

Hi, I bought a 9 DoF sensor stick (this one: http://www.sparkfun.com/products/10183 ), and I’m trying to communicate with the ADXL345 accelerometer over I2C.

My wiring is simply this:

+5V → Vcc

0V → Gnd

Arduino A4 → SDA

Arduino A5 → SCL

And my code (so far) is this:

#include <Wire.h>

const int ACCEL_ADDRESS = 0x1D;
const int ACCEL_POWER_CTL = 0x2D;
const int ACCEL_DATAX0 = 0x32;
const int ACCEL_DATAX1 = 0x33;

void setup()
{
  Serial.begin(9600);
  Wire.begin();
  Wire.beginTransmission(ACCEL_ADDRESS);
  Wire.send(ACCEL_POWER_CTL);
  Wire.send(0x08);
  Wire.endTransmission();
}


void loop()
{
  Wire.beginTransmission(ACCEL_ADDRESS);
  Wire.send(ACCEL_POWER_CTL);
  Wire.endTransmission();
  Wire.requestFrom(ACCEL_DATAX0, 1);
  while (!Wire.available());
  int highx = Wire.receive();
  Serial.println(highx);
}

However, it gets stuck at the Wire.available() loop. I found some mention of removing the lines about internal pull-up resistors in twi.cpp which I tried, but it made no difference. Can anyone say what I am doing wrong? Also it would be nice if there was some documentation about how to use this product other than the chip datasheets…

Oh, and I also tried the ADXL345 driver from the FreeIMU library; that didn’t work either.

Please help!

2

I did the same thing, and ended up removing the while loop. It worked then (I was using a compass, though).

Oh, and make all of your hex numbers bytes.