Originally Posted by cboy
I'm with you Brian. I think Pugsy and GOW just raised the bar about two feet in terms of tool fabrication. You guys do nice work...(and I'll be first in line for when GOW publishes plans for that engine stand/diagnositcs center.)
I don't think I could really market what I have. It's all a bit of a hack. My education for electronics and computer programing is google. It has been tremendously rewarding when you get something to work.
Values for most sensors from temperatures to egt's are read in circuits and fed in through HID devises. HID is human interface device such as joy stick. Getting the code to read that was the hardest for me.
This is an analog reader which reads 8 channels of individual data. I use 2 of these:
Individual circuits calibrated to read things like EGT, O2, temps, etc modify the voltage on each channel and returns a value.
Egt values from AD595:
The RPM and timing advance is calculated with a PAK-VII chip
then processed and sent serially to the program via an OOPIC micro controller(similar to basic stamp)