1 /*
2 * Copyright (c) 2024 Arduino SA
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6
7 #include <stdio.h>
8 #include <zephyr/kernel.h>
9 #include <zephyr/drivers/led.h>
10
11 /* 1000 msec = 1 sec */
12 #define SLEEP_TIME_MS 1000
13
14 /* Structure describing a color by its component values and name */
15 struct color_data {
16 uint8_t r, g, b;
17 const char *name;
18 };
19
20 /* The sequence of colors the RGB LED will display */
21 static const struct color_data color_sequence[] = {
22 { 0xFF, 0x00, 0x00, "Red" },
23 { 0x00, 0xFF, 0x00, "Green" },
24 { 0x00, 0x00, 0xFF, "Blue" },
25 { 0xFF, 0xFF, 0xFF, "White" },
26 { 0xFF, 0xFF, 0x00, "Yellow" },
27 { 0xFF, 0x00, 0xFF, "Purple" },
28 { 0x00, 0xFF, 0xFF, "Cyan" },
29 { 0xF4, 0x79, 0x20, "Orange" },
30 };
31
32 /*
33 * A build error on this line means your board is unsupported.
34 */
35 const struct device *led = DEVICE_DT_GET_ANY(issi_is31fl3194);
36
main(void)37 int main(void)
38 {
39 int ret;
40 int i = 0;
41
42 if (!device_is_ready(led)) {
43 return 0;
44 }
45
46 while (1) {
47 ret = led_set_color(led, 0, 3, &(color_sequence[i].r));
48 if (ret < 0) {
49 return 0;
50 }
51
52 printk("LED color: %s\n", color_sequence[i].name);
53 k_msleep(SLEEP_TIME_MS);
54 i = (i + 1) % ARRAY_SIZE(color_sequence);
55 }
56
57 return 0;
58 }
59
