K-line to TTL serial adaptor board (optional LIN bus)

Allows connection between TTL serial (TX and RX wire at 3.3 or 5v level) and K-line.

Could be used to connect from an Arduino to a car's K-line connection on OBD port for example.

Comes populated with transceiver IC and resistor.

Can be used for LIN bus by installing a different sized resistor.