Yea I've measured the switch and got three set resistances, one for each point, but that was before I got the wiring diagrams and found the voltage value, so as you say, will need to check the that next, which is why I've got the Adriano trinket which will give me my voltage and ground to measure against.twin--turbo wrote:Ok, so you need to measure the switch "SIG" levels against ground with a solid VREF voltage. (5V was the usual VREF, I doubt it's changed)
And also drive the motor and again mesure "SIG", I presume it will either give 3 distinct outputs or just a fully variable output.
Can the selector shaft rotate 360 continuously?
TT
APH wrote:I may be wrong, but it looks like that shift motor PCB is using hall effect sensors to detect the rotation of the plastic nut (inside which will be a fixed magnet). if you connect its 5v and ground and then measure the output voltage on the sig wire, you should get 3 very decisive changes in voltage, as the 3 selector positions are achieved. Hopefully thats what its doing, as thats easier to work with, otherwise you have to start counting pulses.....
APH wrote:Does the motor have to reverse, or can the box change back from 4l to 2h by keep turning in the same direction...
Andy
Airthies wrote:Any idea if I can power up the trinket and use it without programming it first? I'm guessing yes and going off the pinout diagram the ports will be live regardless of programming.
Sent from my anu5 using crapatalk
twin--turbo wrote:The Arduino will do nothing without programing.
twin--turbo wrote: The program will have to take the value from the switch on one analog pin ( or you could build a new digital switch)
twin--turbo wrote:you may run into issues like the motor overshooting, which in turn may require driving it with PWM and slowing the motor down as it approaches the desited set point...
twin--turbo wrote:There may also be a good FUDGE factor already mechanical built into what is probably a hydrualic valve block.
TT
There s a lot of no obvious progress at the no but lots of thinking and headscratching going on, but hopefully get the box in doo as it's been sitting waiting for a while an my current box is a little rattleyDAZZ wrote:https://www.ebay.co.uk/itm/Unimog-404-turbo-diesel-with-Transit-cab-and-tipping-back-1959-tax-mot-exempt/223144395247?hash=item33f47141ef:g:sKUAAOSwaWpbmYJi
job done lol
hows the project coming along?
twin--turbo wrote:You may find drag and drop block coding helpful.
This works for basic stuff but is no longer supported.
http://blog.ardublock.com
Also Scratch works but I think there is a limitation...
http://playground.arduino.cc/interfacing/scratch
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