SIMPLE CAR INSTRUMENT CLUSTER ARDUINO NANO WITH RASPBERRY PI-4 POWERED BY QT5 Several month, I used arduino-Realdash with Android tablet to be used as my car instrument cluster and works nicely as you can see on: Arduino-Realdash The software looks good but it has some limitation and the Android tablet has some problem, it has no reliable bluetooth connection and usb connection is opten disconnect, so I try to search what software to develop the instrument cluster application. Fortunatelly I found the opensource development software that I try for the first time is pretty hard to understand. Qt | Cross-platform software development for embedded ... QT is using c++ and QML language to provide some good function and library to try, there is so many example program to try, and the most interesting point is QT can be run on several plaform, say it Raspberry pi4. Learning from zero knowledge of C++ & QML(I prefer using Visual Basic before), after learning more, then fin...