V5 Brain smart ports

[sazrocks]

Which wires are what actually depends on how the cable is made. These two posts show what each pin does for a particular crimp orientation:

Smart Ports Power Wire

Here is a pinout of the smart ports: [image] They use UART over RS-485, which is a half-duplex serial link with two data pins (A and B). The power pins (+ and -) are connected directly to the V5 battery lines, so as James said they are much higher voltage than you probably want (somewhere in the range of 13 V). Also, they cannot be switched on or off. To reasonably control one or more LEDs from a smart port, you’d need some custom electronics to interpret commands sent over the RS-485 link. T…

Smart Ports Power Wire

That imagine doesn’t really help without the other half, here it is. [image]

If your wires are crimped reverse of this, then reverse the pin assignments.