Use for :
A single vesc only has one UART port output, which is not enough, if it's occupied with other usage(eg. connect a throttle via ADC port), then user can't use connect a Bluetooth or other device (eg. Davega screen)
It's compatible with all other single VESC (It only has one UART port).
Attention:
Since single ubox only have one UART port, using this seperator can't make two UART ports. It ONLY helps to seperate some port function in paralle.
Circuit scheme :