What is IEBus?

They are an Arduino pin compatible low-price ones, suitable for hobbyists. Their color of printed circuit board is SAKURA in Japanese, which means cherry blossom . To evaluate IEBus, an external 5V bus interface transceiver (driver/receiver) IC extension is required.

What is the difference between IEBus and OSI J1850?

It defines OSI model layer 1 and layer 2 specification. IEBus is mainly used for car audio and car navigations, which established de facto standard in Japan, though SAE J1850 is major in United States.

Which mode does the IEBus controller support?

Its IEBus controller supports mode 0, and 1 (not 2). Arduino pin compatible low-price evaluation board, called SAKURA, is available for hobbyists. ^ Goto, Masahiro; Tokuda, Akio; Tatemoto, Hirofumi (September 2011).

What are some good resources for learning about IEBus?

Louis Frigon (SigmaObjects.com) – A great write-up with schematics and source code that interfaces with the IEBus to trick the stock head unit into enabling aux input as it would for a CD changer. It is a great learning tool for how the IEBus protocol works just by looking through the well commented firmware source code.