CMPS14 + Ardunio Nano mounted on rear axle

[TeddyStamford]

I’m starting my first AOG install, I’m planning to connect a CMPS14 to an Ardunio Nano using a Shield screw terminal and Dupont fly leads, I will mount this in an enclosure and mount on the rear axle of the tractor (Claas Arion 640) then use a USB to connect the Ardunio Nano to the Tablet running AOG.

Does this sound sensible? The tractor has cab and front suspension so thought mounting on the rigid rear axle will reduce the ‘noise’ created by the two suspension systems?

[Radmuffins]

If you have antenna on cab with suspension then IMU should be in cab because you will have different tilts cab/axle.

Bno085 and can suspension

If IMU is on cab it will compensate for cab and tractor tilt, error from cab suspension is measured from antenna to cab tilt plane. If tilt plane is half distance from ground error will be 1/2 if tractor is level but cab is at an angle. Potential problem is AOG thinks that whole tractor is at 10deg tilt so it will compensate ~52cm for 10deg on 3m height of antenna, this will over compensate ~26cm to other side of line. (Lower cab tilt plane is IMU will work better down to ground where error wi…

@TeddyStamford

I will mount this in an enclosure and mount on the rear axle of the tractor

CMPS14 uses magnetometer and should be mounted away from interference.