Based on [Travis Goodspeed’s] GoodFET, the GoodThopter by [Q] uses the Microchip MCP2515 ... to three CAN buses, and can be programmed in an environment similar to Arduino.

In the old days, a physical button or switch on the dashboard of your car would have been wired to whatever device it was controlling. There was potentially a relay in the mix, but still, it wasn ...