well this problem has been fixed

The sibtat+ and sibtat have at least the same light communication, and brakes, iirc.

The principle of operation is described here: https://gtm.steamproxy.vip/sharedfiles/filedetails/?id=2006204976

I'm afraid that the sibtat+ functions will not be displayed if a regular sibtat controller is used on the trailer. the sibtat+ protocol involves feedback from trailers to the tractor

Hey! I think it is because SiBTaT microcontrollers have been updated, and as of now at least sibtat+ are a bit broken. I updated the microcontrollers in mine, but park brakes and lights work as they should be, but additional functions do not show up on the monitor of the tractor as of now. don't know what about just sibtat, but for me basic sibtat functions do work flawlessly.

@Punk Monk This is likely due to the SiBTAT standard incorrectly sensing the parking brake signal. There is a switch to override this

the wheels are locked

@ERKDRN69_- Thanks for the feedback! I've personally not had any issues with the SiBTAT handbrake, though i've added a override switch so you can still use the trailer when you run into issues. I've also added electrical motors to the rear axles, these are activated when the speed is above 1 km/h and the vehicle is accelerating, please let me know if this has resolved your issues :D

Actually part of the problem was that for some reason parking brakes are still engaged when the truck has them disengaged, i also rewired a bit the dolly trailer adapter thingy for pulling sibtat trailers with my truck, that is kind of strange that both sibtat and sibtat+ communication should work as intended, but brakes on the wheels are always on (the on/off ones aka park brakes). Sibtat by default doesn't communicate throttle for assisting e-motors to be controlled with. I think for that to work you need to fundle around yourself. Oh btw, it seems that the on/off brakes of wheels are connected to the sibtat controller, but as i mentioned before it has problems with communicating the park brake state for some reason. And the wheel brake button on the right side of the trailer wasn't connected to anything. Ig you could connect all of the wheel on/off brakes to the button, those brakes are only needed when stationary, and disconneced, parked somewhere or on the ramp.

@ERKDRN96_- Hey thanks for checking out the trailer. The variable brakes from the SiBTAT standard are hooked up and functional. Does SiBTAT have a way of controlling electric motors in the way that you mentioned or is there some other way to integrate them? The truck i'm using to tow this is the MALV-C500

Hey @Matt20003! First off, wanted to know what is the vehicle/truck you're towing this trailer with the boat on, and second is a suggestion: add some electric motors to spin the wheels of the trailer, to assist the towing vehicle, and iirc SibTAT has a way to communicate variable braking to trailer wheel variable brakes. It would greatly assist to have at least 2-4 small electric motors to aid with towing of the Hope-90!