TPS = Throttle Position and BST = Boost. Shift lights are programmed to turn on from 6K rpm onwards. Some of the engine parameters are supplied by ECU (example revs, thrrotle position, boost) and some car's own sensors (example fuel level), some via independent sensors (example oil pressure). Air fuel ratio reading comes from my Innovate LC-1 wideband. Looks simple but takes a lot of work to wire, install and configure everything.
With signal light blinker turned on. The other indicator/warning lights at each side of the display are for high water temp, low oil pressure, low battery voltage, low fuel and high beam.
The pictures are by no means comprehensive. Click here for a list of what my dash is configured to display.