jeroenbourgois / f1

F1

Produces a full F1 startgrid sequence.

Circuit:

• 8 ohm speaker on digital pin 2
• 5 LEDs connected to digital pins 9 -> 13, each LED grounded with a 220Ω resistor
• 'OK' pushbutton on analog pin A3 (used as digital pin) and +5V
• 'CANCEL' pushbutton on analog pin A4 (used as digital pin) and +5V
• two reed switches to measure passing cars, analog pins A1 and A2 and +5v
• LCD:
  • data pins D4 -> D7 wired to digital pins 7 -> 4
  • E pin wired to digital pin 8
  • RS pin wired to digital pin 3
  • VCC+ and
  • a potentionmeter with it's middle leg connected to the LCD 4

A detailed Fritzing sketch is available in the repository.

On the LCD we have the following screens:

START -> [Y] -> COUNTDOWN -> RACE --> [Y] -> QUIT? -> [Y] -> START
                                  |                -> [N] -> RACE
                                  --> [N] -> n/a

License

Developed for pure and utter fun. All code is available on Github This code is in the public domain. See LICENSE.