After I bought my smart® & pulse in August 2002, I felt that there were some additional gauges missing for displaying engine parameters like turbo pressure or battery voltage. Initially I thought of adding some analog instruments, but when I was facing all the problems of gauge and sensor installation, it came to mind that all interesting engine data is already available through the car's on-board diagnostic interface. It just needed to be retrieved and displayed. The idea of utilizing the housing of the cockpit clock for this purpose was almost obvious since this took care of many design challenges like professional appearance, easy wiring and two-button user interface. Although, I do prefer analog instruments in a car, presenting up to seven engine parameters within a single physical gauge can only be done with a digital display.

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