A simple replacement for the Saab 9-5 (Gen 1) rain sensing wiper controller. This mimics the factory wiper operation in vehicles that came with the rain sensing wiper option from the factory. Replace the bad or missing rain sensor on the windshield with this project and you'll have full "normal" wiper functionality back (timed, low and high-speed and wash/wipe). See the Arduino source code for some basic comments. BOM and design discussion documents are forthcoming.
Note that this project was intended to be a "one-off" project to test CircuitMaker so the design is not nearly as optimized as it could be. It works just fine in the field but could be smaller and cheaper.
Contact me at email@example.com for questions, comments, etc.