[Dr_C2]

   

Here is the proposed ‘two-board’ solution for simple mounting of the 2-digit windscreen display.

The board will be assembled as a single unit, the six hinge wires added, and then the two side-tabs will be snapped away. The hinge angle can then be adjusted to match the windscreen angle of the car. The  upper section of the assembly is then hot-glued to the underside of the car’s roof.

This version of the main display board includes the following four in-car decoder connection options:

1/ ID reading from IR LED signal (current preference).
2/ ID reading from decoder via uart rx/tx
3/ ID reading from decoder via SPI bus
4/ ID reading from decoder via I2C bus

Meanwhile, the ATtiny is programmed via a single wire UPDI interface so a further option could be to hard-code the display via UPDI.

Next we need to see a race pack of AMGs on a starting grid with their IDs displayed on their respective windscreens.

:)

c