Plug In Board Process¶
Step 1 Research¶
have wiring diagrams in random loose format: pictures, scans, PDF, text.
Step 2 Data Entry¶
have ECU connector pin-out in google spreadsheet form, with explicit function of each pin, often with analysis of multiple vehicles with similar pin-out. Good example
Step 3 Breakout¶
Breakout board for that connector to reduce risks, also a product by itself!
Step 4 Start of KiCAD¶
Pin-out data entry into KiCAD
Step 5 Adapter¶
Proteus or else adapter for specific vehicle, based on steps 2, 3 and 4. Because cheaper fabrication and less labor intense.
Step 6 Plug In Hellen¶
Full plug in board like Hellen if demand exists. See https://github.com/rusefi/rusefi/wiki/Standalone-on-Demand
Step 7 Hellen real vehicle tests¶
We are getting good at these Hellen boards but a board is not done until tested on a real vehicle. A master tech skill set is needed to turn a Hellen into a proven board!