Hi.
Just want to make obd1 data display, I found obd-1 protocol description in pdf, and obd diagnostic circuit.
I need to figure out how to make simple analizer using only arduino with screen to check the signal or explanation of obd protocol.
Thanx.
OBD-I protocol description.PDF (99.9 KB)
Have you looked for ready made devices to do this? Lot easier and probably cheaper.
Weedpharma
Thanx.
Just found ready to go project. but I need help to convert u8g graphic to spi.
I have manage to clean it up for raw data reading but i use ili9163c libraty.
Just need basic scetch, to connect all project sections.
ToyotaOBD1_Reader.ino (12.9 KB)
