【RA4M2-SENSOR】+手机控制RGB_LED彩灯变换

将串口通讯与无线通讯模块相结合，可以方便地实现手机控制RGB_LED进行彩灯变换，其整体构成如图1所示。

图1 整体构成

尽管UART9在调速时很有优势，但它却没有引脚引出，故无法直接使用。

图2 UART9引脚

为此，只能启用UART0，其所用引脚如图3所示。实现无线通讯的功能模块就是通过 UART0来进行数据传送的。

图3 UART0引脚

此外，为了变换色彩的需要，选用了一款RGB_LED模块，并使用CN4接口来与其连接。

图4 CN4接口

在使用RASC对所用引脚进行配置后，即可生成供KEIL使用的项目工程。

实现手机控制下的RGB_LED彩灯变换的主程序为：

void hal_entry(void)
{
	  uint8_t p,f,w,z;
	 uint16_t k,u;
	 err = R_SCI_UART_Open(&g_uart0_ctrl, &g_uart0_cfg);
         assert(FSP_SUCCESS == err);	
         err = R_SCI_UART_Read(&g_uart0_ctrl, uart_rx_buffer, 3);
         assert(FSP_SUCCESS == err);	
         R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_00_PIN_02, BSP_IO_LEVEL_LOW);
         R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_01_PIN_03, BSP_IO_LEVEL_LOW);
         R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_01_PIN_04, BSP_IO_LEVEL_LOW);
         R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_00_PIN_00, BSP_IO_LEVEL_LOW);
         R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_03_PIN_01, BSP_IO_LEVEL_LOW);
         R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_03_PIN_02, BSP_IO_LEVEL_LOW);	
         R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_04_PIN_07, BSP_IO_LEVEL_LOW);
         R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_04_PIN_08, BSP_IO_LEVEL_LOW);	
         while(1)
         {	
	        if(uart_receive_complete_flag)
                {
                    uart_receive_complete_flag = false;
                    if(uart_rx_buffer[0] == 0x55 && uart_rx_buffer[1] == 0xAA)
                    {
                              if(uart_rx_buffer[2] == 0x10)
                              {
						R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_00_PIN_02, BSP_IO_LEVEL_HIGH);									
						R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_00_PIN_00, BSP_IO_LEVEL_HIGH);		  
                              }								
                              if(uart_rx_buffer[2] == 0x11)
                              {
						R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_00_PIN_02, BSP_IO_LEVEL_LOW);
						R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_00_PIN_00, BSP_IO_LEVEL_LOW);
						R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_04_PIN_07, BSP_IO_LEVEL_HIGH);
                        R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_03_PIN_02, BSP_IO_LEVEL_HIGH);		                      }						
		             if(uart_rx_buffer[2] == 0x12)
                             {
						R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_01_PIN_03, BSP_IO_LEVEL_HIGH);
						R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_04_PIN_07, BSP_IO_LEVEL_LOW);
						R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_03_PIN_02, BSP_IO_LEVEL_LOW);
						R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_04_PIN_08, BSP_IO_LEVEL_HIGH);
						R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_03_PIN_01, BSP_IO_LEVEL_HIGH);
                            }								
                            if(uart_rx_buffer[2] == 0x13)
                            {
						R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_01_PIN_03, BSP_IO_LEVEL_LOW);
						R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_04_PIN_08, BSP_IO_LEVEL_LOW);
						R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_03_PIN_01, BSP_IO_LEVEL_LOW);
                        R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_00_PIN_00, BSP_IO_LEVEL_HIGH);
						R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_04_PIN_07, BSP_IO_LEVEL_HIGH);
						R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_03_PIN_02, BSP_IO_LEVEL_HIGH);
                             }								
			     if(uart_rx_buffer[2] == 0x14)
                             {
						R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_01_PIN_04, BSP_IO_LEVEL_HIGH);
						R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_04_PIN_07, BSP_IO_LEVEL_LOW);
						R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_03_PIN_02, BSP_IO_LEVEL_LOW);
                        R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_00_PIN_00, BSP_IO_LEVEL_HIGH);
						R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_04_PIN_08, BSP_IO_LEVEL_HIGH);
						R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_03_PIN_01, BSP_IO_LEVEL_HIGH);
                            }
		            if(uart_rx_buffer[2] == 0x15)
                            {
						R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_01_PIN_04, BSP_IO_LEVEL_LOW);
						R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_04_PIN_07, BSP_IO_LEVEL_HIGH);
						R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_03_PIN_02, BSP_IO_LEVEL_HIGH);
                        R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_00_PIN_00, BSP_IO_LEVEL_LOW);
						R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_04_PIN_08, BSP_IO_LEVEL_HIGH);
						R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_03_PIN_01, BSP_IO_LEVEL_HIGH);
                             }	
		             if(uart_rx_buffer[2] == 0x16)
                             {
						R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_01_PIN_03, BSP_IO_LEVEL_HIGH);
						R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_04_PIN_07, BSP_IO_LEVEL_HIGH);
                        R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_00_PIN_00, BSP_IO_LEVEL_HIGH);
						R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_04_PIN_08, BSP_IO_LEVEL_HIGH);
						R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_03_PIN_01, BSP_IO_LEVEL_HIGH);
						R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_03_PIN_02, BSP_IO_LEVEL_HIGH);									
                            }								
			    if(uart_rx_buffer[2] == 0x17)
                            {
						R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_01_PIN_03, BSP_IO_LEVEL_LOW);
						R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_04_PIN_07, BSP_IO_LEVEL_LOW);
                        R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_00_PIN_00, BSP_IO_LEVEL_LOW);
						R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_04_PIN_08, BSP_IO_LEVEL_LOW);
						R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_03_PIN_01, BSP_IO_LEVEL_LOW);
						R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_03_PIN_02, BSP_IO_LEVEL_LOW);
                           }							
                   }
                  err = R_SCI_UART_Read(&g_uart0_ctrl, uart_rx_buffer, 3);
                  assert(FSP_SUCCESS == err);
	     }
	     R_BSP_SoftwareDelay (100, BSP_DELAY_UNITS_MILLISECONDS);
       }
}

经程序的编译和下载，即可在完成手机链接的情况下，通过发送控制字来变换色彩效果。