How do I connect to my MegaSquirt ECU?
MS1 and MS2 both have serial interfaces. If the computer you will be using for tuning has a serial port, all you will need a straight-through (not null modem) serial cable
If the computer does not have a serial port and only has USB ports, you will need a USB-serial adapter
MS3 has both serial and USB interfaces, so all you will need is a standard USB cable.
