Project 002: Police LED Light Bar Simulation

Objective

• Develop and code an electronic setup using LEDs and a microcontroller to imitate the police LED light bar.

Components

• Microcontroller board (Examples: PSoC, TI Tiva, or similar)
• Breadboard and jumper wires
• 10mm LEDs (3 red, 3 blue)
• 220-ohm resistors × 6
• Push button switch × 1

Circuit Diagram

1. Position the six LEDs on your breadboard, and pair each one with a 220-ohm resistor. These resistors ensure safe current levels for the LEDs, preventing potential damage.
2. Link every LED-resistor combo to a digital output terminal on the microcontroller.
3. Attach the push button switch to a digital input on the microcontroller, configuring the pins to function in input mode with an accompanying pull-up resistor.

Pin configurations

Software Implementation

You are tasked with crafting a minimum of three distinctive police LED light sequences. Consider utilizing a struct to structure the LED sequence as demonstrated::

typedef struct LEDPAT{
    uint8_t leds;
    uint8_t duration;
} LEDPAT;

Structure three pattern arrays as shown:

LEDPAT Pattern1[] = {
                    { , }, // First item  
                    ...
};
LEDPAT Pattern2[] = {
                    { , }, // First item  
                    ...
};
LEDPAT Pattern3[] = {
                    { , }, // First item  
                    ...
};

Within the "main()" function, iterate through your pattern arrays. Illuminate the LEDs as directed by the "leds" parameter in the pattern, and introduce a pause (in milliseconds) as dictated by the "duration" parameter. When the switch (SW1) is activated, shift to the subsequent pattern. Employ software edge-detection techniques to ascertain SW1's state.

Note: Feel free to modify LED sequences and their respective durations to suit your preferences.