Do I need an Arduino board or other hardware for the phidget spatial precision accelerometer or can I program it directly?
Hi there @connor_777!
All phidgets are electronic-blocks controlled by a personal computer via USB, so no need for an Arduino or any hardware! 
If you need any more information about Phidgets, this could be helpful https://www.phidgets.com/docs/What_is_a_Phidget%3F
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Not quite 
In this case, you will need a VINT Hub that will act as an interface between the sensor and your PC:
Actually, if you’re planning on using just the phidget you mentioned (https://www.robotshop.com/ca/en/phidgetspatial-precision-3-33-high-res-3-axis-compassgyroscopeaccelerometer.html) you’re good with just a USB cable and your personal computer.
If you want to use more than one phidget and don’t have enough USB ports available in your computer then the VINT HUB @EvanBotics suggested would be perfect for you. You would also need the VINT HUB if you’re interested in this particular phidget (https://www.robotshop.com/ca/en/phidget-vint-spatial-phidget.html)
In case you need to measure things far from your computer (more than 5 meters) you will need a Single Board Computer such as a Raspberry Pi or the Phidget SBC (https://www.robotshop.com/ca/en/phidgetspatial-precision-3-33-high-res-3-axis-compassgyroscopeaccelerometer.html)
I hope this information has been helpful, however if you have any other questions feel free to ask 
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I apologize !
I opened the wrong one (https://www.robotshop.com/ca/en/phidget-vint-spatial-phidget.html), this one can’t be used on his own.
You are right.
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