Added struct chapter

2026-08-21 02:17:22 +02:00 · 2025-11-27 12:18:56 -05:00
parent 280876ffe1
commit 8d1ef91029
24 changed files with 622 additions and 262 deletions
@@ -0,0 +1,61 @@
+#include <stdio.h>
+#include <stdbool.h>
+#include "pico/stdlib.h"
+#include "ir.h"
+
+#define IR_PIN 5
+
+typedef struct {
+    uint8_t led1_pin;
+    uint8_t led2_pin;
+    uint8_t led3_pin;
+    bool led1_state;
+    bool led2_state;
+    bool led3_state;
+} simple_led_ctrl_t;
+
+int main(void) {
+    stdio_init_all();
+
+    simple_led_ctrl_t leds = {
+        .led1_pin = 16,
+        .led2_pin = 17,
+        .led3_pin = 18,
+        .led1_state = false,
+        .led2_state = false,
+        .led3_state = false
+    };
+
+    gpio_init(leds.led1_pin); gpio_set_dir(leds.led1_pin, GPIO_OUT);
+    gpio_init(leds.led2_pin); gpio_set_dir(leds.led2_pin, GPIO_OUT);
+    gpio_init(leds.led3_pin); gpio_set_dir(leds.led3_pin, GPIO_OUT);
+
+    ir_init(IR_PIN);
+    printf("IR receiver on GPIO %d ready\n", IR_PIN);
+
+    while (true) {
+        int key = ir_getkey();
+        if (key >= 0) {
+            printf("NEC command: 0x%02X\n", key);
+
+            // turn all off first
+            leds.led1_state = false;
+            leds.led2_state = false;
+            leds.led3_state = false;
+
+            // check NEC codes
+            if (key == 0x0C) leds.led1_state = true;   // GPIO16
+            if (key == 0x18) leds.led2_state = true;   // GPIO17
+            if (key == 0x5E) leds.led3_state = true;   // GPIO18
+
+            // apply states
+            gpio_put(leds.led1_pin, leds.led1_state);
+            gpio_put(leds.led2_pin, leds.led2_state);
+            gpio_put(leds.led3_pin, leds.led3_state);
+
+            sleep_ms(10);
+        } else {
+            sleep_ms(1);
+        }
+    }
+}