HB-WS2812 灯盘模块

 1/* USER CODE BEGIN PV */
 2uint8_t mode;
 3
 4const char *Color[] = {
 5    "关闭", "暖白1", "暖白2", "白色", "冷色", "冷白",
 6    "红色", "橙色", "黄色", "绿色", "青色", "蓝色", "紫色",
 7    "全彩缓慢", "灯珠滚动", "彩色积累", "灯光旋转",
 8    "红色呼吸灯", "暖黄色"
 9};
10
11int main(void)
12{
13  HAL_Init();
14  SystemClock_Config();
15  MX_GPIO_Init();
16  OLED_Init();
17  WS2812_I2C_Init();
18
19  WS2812_Set(mode, 5);  // 初始模式=关闭, 亮度=5
20  OLED_CenterPrintf(24, "mode:%s", Color[mode]);
21  OLED_Update();
22  HAL_Delay(1000);
23
24  while (1)
25  {
26    // 灯盘模式更新: 0→18循环
27    (mode < 18) ? (mode++) : (mode = 0);
28    WS2812_Set(mode, 5);  // 发送模式+亮度
29
30    // OLED显示更新
31    OLED_Clear();
32    OLED_CenterPrintf(24, "mode:%s", Color[mode]);
33    OLED_Update();
34
35    // 动态效果延时5s, 静态颜色延时1s
36    if(mode >= 13)
37      HAL_Delay(5000);
38    else
39      HAL_Delay(1000);
40  }
41}

 1#include "./HAL/WS2812/WS2812.h"
 2
 3#define WS2818_ADDRESS 0x5a
 4
 5static void Delay_1us(uint16_t time)
 6{
 7  uint8_t i;
 8  while(time)
 9  {
10    for (i = 0; i < 10; i++) {}
11    time--;
12  }
13}
14
15/* SCL写位 */
16void WS2812_I2C_W_SCL(uint8_t BitValue)
17{
18  HAL_GPIO_WritePin(WS2812_W_SCL_Port, WS2812_W_SCL_Pin, (GPIO_PinState)BitValue);
19  Delay_1us(10);
20}
21
22/* SDA写位 */
23void WS2812_I2C_W_SDA(uint8_t BitValue)
24{
25  HAL_GPIO_WritePin(WS2812_W_SDA_Port, WS2812_W_SDA_Pin, (GPIO_PinState)BitValue);
26  Delay_1us(10);
27}
28
29/* GPIO初始化: 开漏输出模式 */
30void WS2812_I2C_Init(void)
31{
32  __HAL_RCC_GPIOB_CLK_ENABLE();
33  GPIO_InitTypeDef GPIO_InitStruct = {0};
34  GPIO_InitStruct.Pin = WS2812_W_SCL_Pin|WS2812_W_SDA_Pin;
35  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_OD;  // 开漏输出
36  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
37  HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
38  WS2812_I2C_W_SCL(1);
39  WS2812_I2C_W_SDA(1);
40}
41
42/* I2C起始信号 */
43void WS2812_I2C_Start(void)
44{
45  WS2812_I2C_W_SDA(1);
46  WS2812_I2C_W_SCL(1);
47  WS2812_I2C_W_SDA(0);
48  WS2812_I2C_W_SCL(0);
49}
50
51/* I2C停止信号 */
52void WS2812_I2C_Stop(void)
53{
54  WS2812_I2C_W_SDA(0);
55  WS2812_I2C_W_SCL(1);
56  WS2812_I2C_W_SDA(1);
57}
58
59/* 写寄存器: 地址+数据 */
60void WS2812_WriteByte(unsigned char WordAddress, unsigned char Data)
61{
62  WS2812_I2C_Start();
63  WS2812_I2C_SendByte(WS2818_ADDRESS);   // 从机地址 0x5A
64  WS2812_I2C_ReceiveAck();
65  WS2812_I2C_SendByte(WordAddress);        // 寄存器地址
66  WS2812_I2C_ReceiveAck();
67  WS2812_I2C_SendByte(Data);               // 数据
68  WS2812_I2C_ReceiveAck();
69  WS2812_I2C_Stop();
70}
71
72/* 设置模式与亮度 */
73void WS2812_Set(uint8_t WS2812_Mode, uint8_t WS2812_Light)
74{
75  WS2812_WriteByte(0, WS2812_Mode);    // 寄存器0=模式
76  WS2812_WriteByte(1, WS2812_Light);  // 寄存器1=亮度
77}

 1void MX_GPIO_Init(void)
 2{
 3  __HAL_RCC_GPIOD_CLK_ENABLE();
 4  __HAL_RCC_GPIOA_CLK_ENABLE();
 5}

 1void SystemClock_Config(void)
 2{
 3  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
 4  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
 5
 6  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
 7  RCC_OscInitStruct.HSEState = RCC_HSE_ON;
 8  RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
 9  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
10  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
11  RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;  // 8MHz×9=72MHz
12  HAL_RCC_OscConfig(&RCC_OscInitStruct);
13
14  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
15                              |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
16  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
17  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;   // AHB=72MHz
18  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;   // APB1=36MHz
19  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;   // APB2=72MHz
20  HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2);
21}