When I measure voltage at the brown and brown with white strip color in the box behind robot, which the cables and motors are connected inner, voltage...

And see limit switches testing. I pushed J1 button of limit switch. it turns 1 and then 0 and repeats like that. Something is wrong. I think the fail ...

@chris-annin Normally 3.30V. But when I reboot teensy board by clicking teensy.exe it returns 3.29V. BTW, this the limit switch I use. Additiona...

@chris-annin When the switch is made 1.03 volt returns, but when its not made then returns 0. I didn't understand why returns1.03 despite 3.3v. Ƕ...

I found the problem. It's simple. The problem is because of GND. Because GND signal doesn't reach the limit switches, this error appears.

I use AR4 software with Teensy 4.1

I have recently contacted to RoboDK about the driver. They said that they are woking on the driver and it's now beta version. But they also said that ...

@chris-annin Great news. We look forward to its completion.

@bhamze I solved. Write COM to the Robot IP/COM: field and "your com port number" to the Robot Port: field. Don't use baud.