How do you handle exception handling in embedded environments, where it's usually not possible to display a full error message? * http://www.embedded.com/design/prototyping-and-development/4007615/An-exception-primer * in a car, some CEL/OBDII codes are thrown, or if things get really bad, a [limp-home mode](https://www.transmissionrepaircostguide.com/limp-mode/) is engaged * on Chicago car-parking pay boxes, errors are indicated by a light that flashes a certain number of times * https://www.quora.com/How-is-exception-handling-used-in-embedded-software <-- I don't agree with these