The WAS go to the steering valve. and then CANBUSbetween the steering valve, SASA, SESU/TTC, TWINTRAC, ECU TOPDOCK and the EDT 3 connector pin C-D. To the valtra i can get the most litterlatur 
Do you know if the WAS is directly on the bus or is the sensor analogue? Iām retrofitting with the PVED-CLS valve that has a built in steering controller so need to build the steering bus on my own. The retrofit kit for autosteer was around 12keur 
when I asked few years back so going for my own setupā¦
thats correct, you have the WAS to the TC1 controller on the tractor bus if you donĀ“t have autoguide. itĀ“s a analoge signal from sensor.
Thanks. Iāll take a look.
Iām really interested how the new arduino code is going to differ from present and also quite keen to try the triple can capability of the teensy 4.1. The extra power is what I was looking for when I tried to get the code working on the esp32.
Quite a bit of work for a very rusty programmer of limited experience like me!
ā¦also teaching myself a new programming languageā:grimacing:
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Gotta ask stupid questions since 100 km away from machine again, is it a voltage (5V) or a 4-20 mA sensor? Can use the analogue WAS option on the controller then directly.
canĀ“t find if it is 5V, but itĀ“s a voltage read in the EDT diagnostictool, i donĀ“t think valtra use a4-20mA sensors, the most of them is 5V And the sensor if i remember right is 2 in 1, that one circut go to the TC1 and the other go tho steering valve.
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I have a Fendt 926 generation 3 and in the cab there is a ISOBUS-plug.
The picture is from the operation manual.
Does anyone know if itās possible to use that plug for reading the joystick?
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Pretty certain youāll have to use the K-BUS connector next to the fuses.
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Some thoughts on the steering setup on CAN for non-autosteer ready:
This is what Iām building to the old Valtra with no buses whatsoever (with the J1939 angle sensors, drew the analog option as well):
This one is what I figured out for the T4 with the -CLS valve retrofit:
The Teensy board with BNO085 would sit on the roof with the F9P and antenna in single enclosure, connection to roof for the CAN buses, power and USB to tablet. Not the cheapest setup for sure, but aiming for the simplest possible wiring and HW. The PVG based setup is around 1000 eur for the hydraulics and under 500 eur for the sensors.
As for controlling the hydraulics, Iād like to use the Teensy also for that, but havenāt looked how that would work with AOG, is it so that the machine controls are now via a separate board?
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That looks great. I have not found the time to investigate the Canbus on our Axion yet.
ā¦another learning curve now!
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No curve just like Arduino, you will love it. Have to use up any Arduinos i have left, then its all teensy all the time.
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The whole company ethos and information base is just brilliantā¦
Donāt understand how Iāve missed them before!
I think Iāll order one and have a play around too.
Working the Claas out the other day the poor Arduino Uno couldnāt keep up with everything going on I had to do it in sections / steps to get filters setup and then it was away 
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The standard autosteer code runs on it almost without alteration. Just tested it on the bench after some negativity on the telegram group. 
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They are just jealous of the 600mhz
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Teensy has several uarts also, a couple of I2C ports, etc. So if you want to connect to serial and other devices at the same time, itās well-suited. Not sure about its ADC precision. Itās a very fast and capable platform. So far Iāve heard from four different farmers who successfully deployed their own ITC extender devices using them.
While you can attach any CAN transceiver you want to the teensy 4, I do recommend the skpang breakout boards that make it very easy, including a 12V dc dc converter on the board. Theyāve got 4.0 and 4.1 variants now I noticed. That ethernet and sdcard capability on the 4.1 is neat too. Teensy has more power and more peripherals than my PC did in university.
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Wow 600mhz was the pentiumIIIās, kinda gives the tiny teensy some perspective.
The only thing I wish with teensy was a few more underclocking frequencies. The jump from 150mhz down to 24mhz is really huge. Would make it easy to figure out minimum board requirements.
Another feature that might be handy for this sort of work:
EDIT. I take it back. avoid threads whenever possible!