KOP Accelerometer with Arduino

[DavisC]

Hello,
Well I have spent a while banging my head into a wall trying to interface the KOP accelerometer with an Arduino to no avail. Does anyone know of an easy way to do this?
Thanks,
Davis Catherman

[DonRotolo]

Does the KoP Accelerometer have an analog output? If so, read the voltage at the analog input of the Arduino, then do the simple multiplication (or division) to come to a useful value.

Otherwise, what kind of output does the accel have?

[DavisC]

No it does not, but I have heard that the easier way to hook it up is via the 12C interface (4 pins).
I believe its the FIRST KOP accelerometer from 2011 but it was recent anyways (accelerometer + gyro combined).
Thanks,
Davis C

[DonRotolo]

Ah, OK, I2C. First watch this (http://www.youtube.com/watch?v=GJX0BRUagCg), then read this (http://tronixstuff.wordpress.com/2010/10/20/tutorial-arduino-and-the-i2c-bus/) (and the second part, chapter 21). That'll help you make sense of I2C. Google can find other references too. Here is the programming reference (http://www.arduino.cc/en/Reference/Wire). You'll need to find the details of the accelerometer yourself...

[docdavies]

You might also want to look into this item. This is the route we went...

http://www.ebay.com/itm/290631526078?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649

[rbmj]

Use the source Luke. If you check WPILib, its just an read through the analog:


float Accelerometer::GetAcceleration()
{
return (m_analogChannel->GetAverageVoltage() - m_zeroGVoltage) / m_voltsPerG;
}