The Head-up Display is a projector that projects instrument readings directly onto the glass just below the driver's eye level. We place the projector on the car's torpedo (using an anti-slip mat). The projector emits light when working, which is mirrored by the windshield, on which we actually see the information in the form we are accustomed to. We connect the cable to the OBDII diagnostic socket. The device can automatically adjust the brightness of the backlight, it is achieved thanks to the light sensor. Most of the readings from the dashboard are duplicated on the windshield. The projection display can inform (with sound signals and a burning icon) the driver about excessive speed, excessive revolutions, as well as about excessive coolant temperature.