talksik
108 lines
2.6 KiB
C
108 lines
2.6 KiB
C
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#include <stdbool.h>
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#include <stdio.h>
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#include <wiringPi.h>
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// these are based on the wiringPi pin numbers
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#define YELLOW_PIN 26 // GPIO 12
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#define GREEN_PIN 27 // GPIO 16
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#define BLUE_PIN 28 // GPIO 20
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#define RED_PIN 29 // GPIO 21
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#define BUTTON_PIN 1 // GPIO 18
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enum LED_STATE
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{
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BLANK = 0,
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YELLOW,
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GREEN,
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BLUE,
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RED,
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NUM_LEDS
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};
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int main(int argc, char *argv[])
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{
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printf("Starting program \n");
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printf("Number of arguments: %d\n", argc);
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printf("Program name: %s\n", argv[0]); // argv[0] holds the program name
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for (int i = 1; i < argc; i++)
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{ // Iterate through arguments starting from index 1
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printf("Argument %d: %s\n", i, argv[i]);
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}
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wiringPiSetup();
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pinMode(YELLOW_PIN, OUTPUT);
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pinMode(GREEN_PIN, OUTPUT);
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pinMode(BLUE_PIN, OUTPUT);
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pinMode(RED_PIN, OUTPUT);
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pinMode(BUTTON_PIN, INPUT);
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pullUpDnControl(BUTTON_PIN, PUD_UP);
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enum LED_STATE ledState = BLANK;
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digitalWrite(YELLOW_PIN, LOW);
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digitalWrite(GREEN_PIN, LOW);
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digitalWrite(BLUE_PIN, LOW);
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digitalWrite(RED_PIN, LOW);
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bool buttonPressed = false;
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while (1)
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{
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if (digitalRead(BUTTON_PIN) == LOW && !buttonPressed)
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{
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printf("Button pressed\n");
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ledState = (ledState + 1) % NUM_LEDS;
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buttonPressed = true;
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}
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else
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{
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buttonPressed = false;
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continue;
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}
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printf("LED state: %d\n", ledState);
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switch (ledState)
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{
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case BLANK:
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digitalWrite(YELLOW_PIN, LOW);
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digitalWrite(GREEN_PIN, LOW);
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digitalWrite(BLUE_PIN, LOW);
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digitalWrite(RED_PIN, LOW);
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break;
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case YELLOW:
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digitalWrite(YELLOW_PIN, HIGH);
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digitalWrite(GREEN_PIN, LOW);
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digitalWrite(BLUE_PIN, LOW);
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digitalWrite(RED_PIN, LOW);
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break;
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case GREEN:
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digitalWrite(YELLOW_PIN, LOW);
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digitalWrite(GREEN_PIN, HIGH);
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digitalWrite(BLUE_PIN, LOW);
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digitalWrite(RED_PIN, LOW);
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break;
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case BLUE:
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digitalWrite(YELLOW_PIN, LOW);
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digitalWrite(GREEN_PIN, LOW);
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digitalWrite(BLUE_PIN, HIGH);
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digitalWrite(RED_PIN, LOW);
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break;
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case RED:
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digitalWrite(YELLOW_PIN, LOW);
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digitalWrite(GREEN_PIN, LOW);
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digitalWrite(BLUE_PIN, LOW);
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digitalWrite(RED_PIN, HIGH);
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break;
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default:
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break;
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}
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}
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return 0;
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}
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