I haven’t problems too with the current mounting. I just find that miwPWM at 70 is a bit high. And the new design also take into account some improvement I have in mind.
But like you, until the current design mounted on the Fiat doesn’t break, I will not change it !
Next design is just ready in case of brake of the current (so it’s why I haven’t test the new design for now).
Im charging my FZ-G1 directly from the 12-14.4V of the Tractor.
Just bought a spare Dc Plug that goes in the Tablet and wired it into the Power Line of the Tractor, with a 5A Fuse.
Yesterday i worked the first field, im surpises with the accuracy with stanley steering i managed to keep it 2-3cm from the line, sometimes 6 when the cultivator pulled hard on the tractor and the topsoil was a bit slippery. So far i cant get the pure pursuit to work well and abcurved lines are also still a bit tricky for the tractor to follow. Maybe i will need a converter to run my steer motor on 24v instead of the 12v now. Charging te tablet direct from the tractor sounds like a plan, the convertor wasnt a big succes.
Edit:
In working without cmps or bno085 now and have the mma turned off. Im planning on getting a cmps14 but im still figuring how to mount it and where. I think together in a box above the rear axle with an extra arduino would be the best place and way.
The best place is as close to the middle of the pivot and as low as possible. So center of the axleleft to right, front to back.
In my 2wd, it sits under the seat - works really well and is super stable.
WIth i2c extender you can go a few meters with i2c.
On the 4WD it is mounted right at the articulation joint.
you want the imu to not exhibit any non symmetric motion - different going left vs right - by having an offset. Move the thing around the cab, or even on top of the cab away from blower motors, high power etc. The ability to mount the thing away from the confines of the autosteer board is key as you can easily mount it pointing forward using a single axis.
Right now i have the pcb fixed on the floor next to the seat, so lets say i would make the cmps in the middle under the seat i could reach there without an i2c extender? If the pcb is fixed in place, leveled and pointing forward, can i then use the place for the mma or should i still use jumper wires to give it another place?
Was is the honeywell rty sensor.
Tablet is a refurbished panasonic fz-g1
The pcb is pcb v2 from Brian
Motor is the phidgets motor running on 12v for now, have a 24v converter laying on the shelf.
Currently no sensor for roll, the mma isnt stable enough for me, but im planning on using cmps14.
The gps is from ardusimple with the simple ublox receiver.
I wish you good luck with building it on such a nice tractor.
[quote=“moonshine, post:22, topic:4905”]
im not shure …
the next closes rtk station i founde is 100 km away so i dont know if its a problem becus of a distanec or because i mees somting in rtklib i get some pic like this and there is no rkt fix