Control WS2812B_RGB lamp by LCD

Lance167598 · 29 September 2021 02:43

Brief introduction

The STONE LCD is a 7-inch display module with a resolution of 800*480. This display module can be purchased from the official website of STONE. The communication mode is uart-rs232 and uart-ttl. The development method is very simple, MCU only needs to send instructions to STONE display module to control the display content through UART. In the same principle, when the user touches the STONE display module, the display module also sends relevant instructions to MCU through UART, and MCU then controls the device (WS2812B_RGB lamp in this project).

UI design

c-5-Control-WS2812B_RGB-lamp-by-STONE-display-module(5)

connection

c-5-Control-WS2812B_RGB-lamp-by-STONE-display-module(23)

code sharing

#define RED_COLOR     0x07

#define ICON_WHITE_ADDR  0x02

#define ICON_RED_ADDR    0x03

#define ICON_GREEN_ADDR  0x04

#define ICON_BLUE_ADDR   0x05

 

#define TEXT_RED_ADDR         0x07

#define TEXT_GREEN_ADDR       0x08

#define TEXT_BLUE_ADDR        0x09

#define TEXT_WHITE_ADDR       0x06

 

#define SWITCH_ONOFF_ADDR     0x01

 

#define ICON_ON          0x01

#define ICON_OFF         0x00

u8 data_send[8]=  {0xA5, 0x5A, 0x05, 0x82, 0x00, 0x00, 0x00,0x00};

 

Data sent to the display screen should be sent according to the corresponding format:

U8 data_send[8]= {0xA5, 0x5A, 0x05, 0x82, 0x00,0x00,0x00,0x00};

Data [4]\ data[5] is the high and low order of component addresses.

Data [6]\ data[7] is the data to be displayed by the component.

The main logical code will be provided below:

#include "stm32f10x.h"

#include "usart.h"

#include "delay.h"

#include "../BOARD/ws2812/ws2812.h"

struct RGB_COLOR

{

u8 C_RED;

u8 C_GREEN;

u8 C_BLUE;

u8 C_WHITE;

 

u8 C_RED_FLAG;

u8 C_GREEN_FLAG;

u8 C_BLUE_FLAG;

};

#define ICON_WHITE_ADDR  0x02

#define ICON_RED_ADDR    0x03

#define ICON_GREEN_ADDR  0x04

#define ICON_BLUE_ADDR   0x05

 

#define TEXT_RED_ADDR         0x07

#define TEXT_GREEN_ADDR       0x08

#define TEXT_BLUE_ADDR        0x09

#define TEXT_WHITE_ADDR       0x06

#define SWITCH_ONOFF_ADDR     0x01

#define ICON_ON          0x01

#define ICON_OFF         0x00

u8 data_send[8]=  {0xA5, 0x5A, 0x05, 0x82, 0x00, 0x00, 0x00,0x00};

void UART1_Send_Array(u8 send_array[],unsigned char num)

{

        u8 i=0;  

        while(i

        {

                USART_SendData(USART1,send_array[i]);  

                while( USART_GetFlagStatus(USART1,USART_FLAG_TC)!= SET);  

                i++;  

        }

}

int main(void)

{

  uart_init(115200);

  delay_init();

struct RGB_COLOR USER_RGB_COLOR;

USER_RGB_COLOR.C_BLUE=0;

USER_RGB_COLOR.C_GREEN=0;

USER_RGB_COLOR.C_RED=0;

USER_RGB_COLOR.C_RED_FLAG=1;

USER_RGB_COLOR.C_GREEN_FLAG=1;

USER_RGB_COLOR.C_BLUE_FLAG=1;

u16 k,q;

u8 BLINK_2=0;

u8 USER_R=0,USER_G=0,USER_B=0,COLOR_TYPE=0,COLOR_DIR=0;

u8 blink_type=0;

u16 times=0;

RGB_LED_Init();

while(1)

{

if(USART_RX_END)

{    

switch (USART_RX_BUF[5])

{

case 0x33:

PIXEL_NUM=USART_RX_BUF[8];

break;

case LED_ALL_ONOFF:

blink_type=0;

if(USART_RX_BUF[8]==0)

{

data_send[5]=ICON_RED_ADDR;

data_send[7]=ICON_OFF;

UART1_Send_Array(data_send,8);

data_send[5]=TEXT_RED_ADDR;

data_send[7]=0x00;

UART1_Send_Array(data_send,8);

 

data_send[5]=ICON_GREEN_ADDR;

data_send[7]=ICON_OFF;

UART1_Send_Array(data_send,8);

data_send[5]=TEXT_GREEN_ADDR;

data_send[7]=0x00;

UART1_Send_Array(data_send,8);

 

data_send[5]=ICON_BLUE_ADDR;

data_send[7]=ICON_OFF;

UART1_Send_Array(data_send,8);

data_send[5]=TEXT_BLUE_ADDR;

data_send[7]=0x00;

UART1_Send_Array(data_send,8);

 

USER_RGB_COLOR.C_BLUE=0;

USER_RGB_COLOR.C_GREEN=0;

USER_RGB_COLOR.C_RED=0;

data_send[5]=ICON_WHITE_ADDR;

data_send[7]=ICON_OFF;

UART1_Send_Array(data_send,8);

data_send[5]=TEXT_WHITE_ADDR;

data_send[7]=0x00;

UART1_Send_Array(data_send,8);

USER_RGB_COLOR.C_WHITE=0;

}

else

{

USER_RGB_COLOR.C_BLUE=0x32;

USER_RGB_COLOR.C_GREEN=0x10;

USER_RGB_COLOR.C_RED=0x24;

USER_RGB_COLOR.C_RED_FLAG=0;

USER_RGB_COLOR.C_GREEN_FLAG=0;

USER_RGB_COLOR.C_BLUE_FLAG=0;

 

data_send[5]=ICON_RED_ADDR;

data_send[7]=ICON_ON;

UART1_Send_Array(data_send,8);

data_send[5]=TEXT_RED_ADDR;

data_send[7]=0x24;

UART1_Send_Array(data_send,8);

 

data_send[5]=ICON_GREEN_ADDR;

data_send[7]=ICON_ON;

UART1_Send_Array(data_send,8);

data_send[5]=TEXT_GREEN_ADDR;

data_send[7]=0x10;

UART1_Send_Array(data_send,8);

 

data_send[5]=ICON_BLUE_ADDR;

data_send[7]=ICON_ON;

UART1_Send_Array(data_send,8);

data_send[5]=TEXT_BLUE_ADDR;

data_send[7]=0x32;

UART1_Send_Array(data_send,8);

}

RGB_LED_Write_24Bits(USER_RGB_COLOR.C_RED, USER_RGB_COLOR.C_GREEN, USER_RGB_COLOR.C_BLUE);

 

break;

case RED_COLOR:

blink_type=0;

if(USER_RGB_COLOR.C_RED_FLAG==1)

{

if(USART_RX_BUF[8]==0)

break;

}

data_send[5]=ICON_WHITE_ADDR;

data_send[7]=ICON_OFF;

UART1_Send_Array(data_send,8);

 

data_send[5]=TEXT_WHITE_ADDR;

data_send[7]=0x00;

UART1_Send_Array(data_send,8);

USER_RGB_COLOR.C_WHITE=0;

 

data_send[5]=SWITCH_ONOFF_ADDR;

data_send[7]=ICON_ON;

UART1_Send_Array(data_send,8);

 

data_send[5]=ICON_RED_ADDR;

if(USART_RX_BUF[8]>0)data_send[7]=ICON_ON;

else data_send[7]=ICON_OFF;

UART1_Send_Array(data_send,8);

 

USER_RGB_COLOR.C_RED=USART_RX_BUF[8];

USER_RGB_COLOR.C_RED_FLAG=0;

if(USER_RGB_COLOR.C_RED==0)USER_RGB_COLOR.C_RED_FLAG=1;

 

if((USER_RGB_COLOR.C_RED==0x00)&&(USER_RGB_COLOR.C_GREEN==0x00)&&(USER_RGB_COLOR.C_BLUE==0x00)&&(USER_RGB_COLOR.C_WHITE==0x00))

{

data_send[5]=SWITCH_ONOFF_ADDR;

data_send[7]=ICON_OFF;

UART1_Send_Array(data_send,8);

}

RGB_LED_Write_24Bits(USER_RGB_COLOR.C_RED, USER_RGB_COLOR.C_GREEN, USER_RGB_COLOR.C_BLUE); // Red

 

break;

case GREEN_COLOR:

blink_type=0;

if(USER_RGB_COLOR.C_GREEN_FLAG==1)

{

if(USART_RX_BUF[8]==0)

break;

}

data_send[5]=ICON_GREEN_ADDR;

if(USART_RX_BUF[8]>0)data_send[7]=ICON_ON;

else data_send[7]=ICON_OFF;

UART1_Send_Array(data_send,8);

 

data_send[5]=ICON_WHITE_ADDR;

data_send[7]=ICON_OFF;

UART1_Send_Array(data_send,8);

data_send[5]=TEXT_WHITE_ADDR;

data_send[7]=0x00;

UART1_Send_Array(data_send,8);

USER_RGB_COLOR.C_WHITE=0;

 

data_send[5]=SWITCH_ONOFF_ADDR;

data_send[7]=ICON_ON;

UART1_Send_Array(data_send,8);

 

USER_RGB_COLOR.C_GREEN=USART_RX_BUF[8];

USER_RGB_COLOR.C_GREEN_FLAG=0;

if(USER_RGB_COLOR.C_GREEN==0)USER_RGB_COLOR.C_GREEN_FLAG=1;

 

if((USER_RGB_COLOR.C_RED==0x00)&&(USER_RGB_COLOR.C_GREEN==0x00)&&(USER_RGB_COLOR.C_BLUE==0x00)&&(USER_RGB_COLOR.C_WHITE==0x00))

{

data_send[5]=SWITCH_ONOFF_ADDR;

data_send[7]=ICON_OFF;

UART1_Send_Array(data_send,8);

}

RGB_LED_Write_24Bits(USER_RGB_COLOR.C_RED, USER_RGB_COLOR.C_GREEN, USER_RGB_COLOR.C_BLUE);  // Green

break;

case BLUE_COLOR:

blink_type=0;

if(USER_RGB_COLOR.C_BLUE_FLAG==1)

{

if(USART_RX_BUF[8]==0)

break;

}

data_send[5]=ICON_BLUE_ADDR;

if(USART_RX_BUF[8]>0)data_send[7]=ICON_ON;

else data_send[7]=ICON_OFF;

UART1_Send_Array(data_send,8);

 

data_send[5]=ICON_WHITE_ADDR;

data_send[7]=ICON_OFF;

UART1_Send_Array(data_send,8);

data_send[5]=TEXT_WHITE_ADDR;

data_send[7]=0x00;

UART1_Send_Array(data_send,8);

USER_RGB_COLOR.C_WHITE=0;

 

data_send[5]=SWITCH_ONOFF_ADDR;

data_send[7]=ICON_ON;

UART1_Send_Array(data_send,8);

 

USER_RGB_COLOR.C_BLUE=USART_RX_BUF[8];

USER_RGB_COLOR.C_BLUE_FLAG=0;

if(USER_RGB_COLOR.C_BLUE==0)USER_RGB_COLOR.C_BLUE_FLAG=1;

 

if((USER_RGB_COLOR.C_RED==0x00)&&(USER_RGB_COLOR.C_GREEN==0x00)&&(USER_RGB_COLOR.C_BLUE==0x00)&&(USER_RGB_COLOR.C_WHITE==0x00))

{

data_send[5]=SWITCH_ONOFF_ADDR;

data_send[7]=ICON_OFF;

UART1_Send_Array(data_send,8);

}

RGB_LED_Write_24Bits(USER_RGB_COLOR.C_RED, USER_RGB_COLOR.C_GREEN, USER_RGB_COLOR.C_BLUE); // Blue

break;

case WHITE_COLOR:

blink_type=0;

data_send[5]=ICON_WHITE_ADDR;

if(USART_RX_BUF[8]>0)data_send[7]=ICON_ON;

else data_send[7]=ICON_OFF;

UART1_Send_Array(data_send,8);

 

data_send[5]=ICON_RED_ADDR;

data_send[7]=ICON_OFF;

UART1_Send_Array(data_send,8);

 

data_send[5]=TEXT_RED_ADDR;

data_send[7]=0x00;

UART1_Send_Array(data_send,8);

 

data_send[5]=ICON_GREEN_ADDR;

data_send[7]=ICON_OFF;

UART1_Send_Array(data_send,8);

data_send[5]=TEXT_GREEN_ADDR;

data_send[7]=0x00;

UART1_Send_Array(data_send,8);

 

data_send[5]=ICON_BLUE_ADDR;

data_send[7]=ICON_OFF;

UART1_Send_Array(data_send,8);

data_send[5]=TEXT_BLUE_ADDR;

data_send[7]=0x00;

UART1_Send_Array(data_send,8);

 

USER_RGB_COLOR.C_BLUE=0;

USER_RGB_COLOR.C_GREEN=0;

USER_RGB_COLOR.C_RED=0;

USER_RGB_COLOR.C_RED_FLAG=1;

USER_RGB_COLOR.C_GREEN_FLAG=1;

USER_RGB_COLOR.C_BLUE_FLAG=1;

data_send[5]=SWITCH_ONOFF_ADDR;

data_send[7]=ICON_ON;

UART1_Send_Array(data_send,8);

USER_RGB_COLOR.C_WHITE=USART_RX_BUF[8];

 

if((USER_RGB_COLOR.C_RED==0x00)&&(USER_RGB_COLOR.C_GREEN==0x00)&&(USER_RGB_COLOR.C_BLUE==0x00)&&(USER_RGB_COLOR.C_WHITE==0x00))

{

data_send[5]=SWITCH_ONOFF_ADDR;

data_send[7]=ICON_OFF;

UART1_Send_Array(data_send,8);

}

RGB_LED_Write_24Bits(USER_RGB_COLOR.C_WHITE, USER_RGB_COLOR.C_WHITE, USER_RGB_COLOR.C_WHITE);

break;

case BLINK1:

blink_type=1;

data_send[5]=ICON_RED_ADDR;

data_send[7]=ICON_OFF;

UART1_Send_Array(data_send,8);

data_send[5]=TEXT_RED_ADDR;

data_send[7]=0x00;

UART1_Send_Array(data_send,8);

 

data_send[5]=ICON_GREEN_ADDR;

data_send[7]=ICON_OFF;

UART1_Send_Array(data_send,8);

data_send[5]=TEXT_GREEN_ADDR;

data_send[7]=0x00;

UART1_Send_Array(data_send,8);

 

data_send[5]=ICON_BLUE_ADDR;

data_send[7]=ICON_OFF;

UART1_Send_Array(data_send,8);

data_send[5]=TEXT_BLUE_ADDR;

data_send[7]=0x00;

UART1_Send_Array(data_send,8);

 

USER_RGB_COLOR.C_BLUE=0;

USER_RGB_COLOR.C_GREEN=0;

USER_RGB_COLOR.C_RED=0;

data_send[5]=ICON_WHITE_ADDR;

data_send[7]=ICON_OFF;

UART1_Send_Array(data_send,8);

data_send[5]=TEXT_WHITE_ADDR;

data_send[7]=0x00;

UART1_Send_Array(data_send,8);

USER_RGB_COLOR.C_WHITE=0;

 

data_send[5]=SWITCH_ONOFF_ADDR;

data_send[7]=ICON_ON;

UART1_Send_Array(data_send,8);

 

break;

case BLINK2:

blink_type=2;

data_send[5]=ICON_RED_ADDR;

data_send[7]=ICON_OFF;

UART1_Send_Array(data_send,8);

data_send[5]=TEXT_RED_ADDR;

data_send[7]=0x00;

UART1_Send_Array(data_send,8);

 

data_send[5]=ICON_GREEN_ADDR;

data_send[7]=ICON_OFF;

UART1_Send_Array(data_send,8);

data_send[5]=TEXT_GREEN_ADDR;

data_send[7]=0x00;

UART1_Send_Array(data_send,8);

 

data_send[5]=ICON_BLUE_ADDR;

data_send[7]=ICON_OFF;

UART1_Send_Array(data_send,8);

data_send[5]=TEXT_BLUE_ADDR;

data_send[7]=0x00;

UART1_Send_Array(data_send,8);

 

USER_RGB_COLOR.C_BLUE=0;

USER_RGB_COLOR.C_GREEN=0;

USER_RGB_COLOR.C_RED=0;

data_send[5]=ICON_WHITE_ADDR;

data_send[7]=ICON_OFF;

UART1_Send_Array(data_send,8);

data_send[5]=TEXT_WHITE_ADDR;

data_send[7]=0x00;

UART1_Send_Array(data_send,8);

USER_RGB_COLOR.C_WHITE=0;

 

data_send[5]=SWITCH_ONOFF_ADDR;

data_send[7]=ICON_ON;

UART1_Send_Array(data_send,8);

 

break;

 

case BLINK3:

blink_type=3;

data_send[5]=ICON_RED_ADDR;

data_send[7]=ICON_OFF;

UART1_Send_Array(data_send,8);

data_send[5]=TEXT_RED_ADDR;

data_send[7]=0x00;

UART1_Send_Array(data_send,8);

 

data_send[5]=ICON_GREEN_ADDR;

data_send[7]=ICON_OFF;

UART1_Send_Array(data_send,8);

data_send[5]=TEXT_GREEN_ADDR;

data_send[7]=0x00;

UART1_Send_Array(data_send,8);

 

data_send[5]=ICON_BLUE_ADDR;

data_send[7]=ICON_OFF;

UART1_Send_Array(data_send,8);

data_send[5]=TEXT_BLUE_ADDR;

data_send[7]=0x00;

UART1_Send_Array(data_send,8);

 

USER_RGB_COLOR.C_BLUE=0;

USER_RGB_COLOR.C_GREEN=0;

USER_RGB_COLOR.C_RED=0;

// USER_RGB_COLOR.C_RED_FLAG=1;

// USER_RGB_COLOR.C_GREEN_FLAG=1;

// USER_RGB_COLOR.C_BLUE_FLAG=1;

 

data_send[5]=ICON_WHITE_ADDR;

data_send[7]=ICON_OFF;

UART1_Send_Array(data_send,8);

data_send[5]=TEXT_WHITE_ADDR;

data_send[7]=0x00;

UART1_Send_Array(data_send,8);

USER_RGB_COLOR.C_WHITE=0;

 

data_send[5]=SWITCH_ONOFF_ADDR;

data_send[7]=ICON_ON;

UART1_Send_Array(data_send,8);

break;

case BLINK4:

blink_type=4;

data_send[5]=ICON_RED_ADDR;

data_send[7]=ICON_OFF;

UART1_Send_Array(data_send,8);

data_send[5]=TEXT_RED_ADDR;

data_send[7]=0x00;

UART1_Send_Array(data_send,8);

 

data_send[5]=ICON_GREEN_ADDR;

data_send[7]=ICON_OFF;

UART1_Send_Array(data_send,8);

data_send[5]=TEXT_GREEN_ADDR;

data_send[7]=0x00;

UART1_Send_Array(data_send,8);

 

data_send[5]=ICON_BLUE_ADDR;

data_send[7]=ICON_OFF;

UART1_Send_Array(data_send,8);

data_send[5]=TEXT_BLUE_ADDR;

data_send[7]=0x00;

UART1_Send_Array(data_send,8);

 

USER_RGB_COLOR.C_BLUE=0;

USER_RGB_COLOR.C_GREEN=0;

USER_RGB_COLOR.C_RED=0;

data_send[5]=ICON_WHITE_ADDR;

data_send[7]=ICON_OFF;

UART1_Send_Array(data_send,8);

data_send[5]=TEXT_WHITE_ADDR;

data_send[7]=0x00;

UART1_Send_Array(data_send,8);

USER_RGB_COLOR.C_WHITE=0;

 

data_send[5]=SWITCH_ONOFF_ADDR;

data_send[7]=ICON_ON;

UART1_Send_Array(data_send,8);

break;

default:

USART_RX_END=0;

USART_RX_STA=0;

break;

}

USART_RX_STA=0;

USART_RX_END=0;

}

else

{

if(blink_type==1)

{

times++;

if(times>=14)

{

times=0;

if(COLOR_DIR==0)

{

if(COLOR_TYPE==0)

{

USER_R++;

USER_G=0;

USER_B=0;

}

else if(COLOR_TYPE==1)

{

USER_R=0;

USER_G++;

USER_B=0;

}

else if(COLOR_TYPE==2)

{

USER_R=0;

USER_G=0;

USER_B++;

}

else if(COLOR_TYPE==3)

{

USER_R++;

USER_G++;

USER_B=0;

}

else if(COLOR_TYPE==4)

{

USER_R=0;

USER_G++;

USER_B++;

}

else if(COLOR_TYPE==5)

{

USER_R++;

USER_G=0;

USER_B++;

}

if((USER_R>=250)||(USER_G>=250)||(USER_B>=250))

{

COLOR_DIR=1;

}

}

else

{

if(COLOR_TYPE==0)

{

USER_R--;

USER_G=0;

USER_B=0;

}

else if(COLOR_TYPE==1)

{

USER_R=0;

USER_G--;

USER_B=0;

}

else if(COLOR_TYPE==2)

{

USER_R=0;

USER_G=0;

USER_B--;

}

else if(COLOR_TYPE==3)

{

USER_R--;

USER_G--;

USER_B=0;

}

else if(COLOR_TYPE==4)

{

USER_R=0;

USER_G--;

USER_B--;

}

else if(COLOR_TYPE==5)

{

USER_R--;

USER_G=0;

USER_B--;

}

if((USER_R==0x02)||(USER_G==0x02)||(USER_B==0x02))

{

COLOR_DIR=0;

COLOR_TYPE++;

if(COLOR_TYPE>5)

COLOR_TYPE=0;

}

}

RGB_LED_Write_24Bits(USER_R,USER_G,USER_B);

}

delay_ms(1);

}

else if(blink_type==2)

{

k++;

if(k>=150)

{

k=0;

q=200;

{

BLINK_2++;

if(BLINK_2>8)BLINK_2=0;

}

if(BLINK_2==0)

RGB_LED_Write_24Bits(q,0,0);

else if(BLINK_2==1)

RGB_LED_Write_24Bits(0,q,0);

else if(BLINK_2==2)

RGB_LED_Write_24Bits(0,0,q);

else if(BLINK_2==3)

RGB_LED_Write_24Bits(q,q,0);

else if(BLINK_2==4)

RGB_LED_Write_24Bits(0,q,q);

else if(BLINK_2==5)

RGB_LED_Write_24Bits(q,0,q);

else if(BLINK_2==6)

RGB_LED_Write_24Bits(q-100,q,0);

else if(BLINK_2==7)

RGB_LED_Write_24Bits(0,q-80,q);

else if(BLINK_2==8)

RGB_LED_Write_24Bits(q,0,q-120);

else if(BLINK_2==9)

RGB_LED_Write_24Bits(40,q-100,q-70);

else if(BLINK_2==10)

RGB_LED_Write_24Bits(q,100,q-80);

 

}

delay_ms(1);

}

else if(blink_type==3)

{

k++;

if(k>=1000)

{

k=0;

{

BLINK_2++;

if(BLINK_2>5)BLINK_2=0;

}

{

if(BLINK_2==0)

RGB_LED_Write_24Bits(q,0,0);

else if(BLINK_2==1)

RGB_LED_Write_24Bits(0,q,0);

else if(BLINK_2==2)

RGB_LED_Write_24Bits(0,0,q);

else if(BLINK_2==3)

RGB_LED_Write_24Bits(q,q,0);

else if(BLINK_2==4)

RGB_LED_Write_24Bits(0,q,q);

else if(BLINK_2==5)

RGB_LED_Write_24Bits(q,0,q);

}

}

delay_ms(1);

}

else if(blink_type==4)

{

k++;

if(k>=500)

{

k=0;

q=0;

BLINK_2++;

if(BLINK_2>5)BLINK_2=0;

}

q++;

if(q>=250)q=0;

if(BLINK_2==0)

RGB_LED_Write_24Bits(q,0,0);

else if(BLINK_2==1)

RGB_LED_Write_24Bits(0,q,0);

else if(BLINK_2==2)

RGB_LED_Write_24Bits(0,0,q);

else if(BLINK_2==3)

RGB_LED_Write_24Bits(q,q,0);

else if(BLINK_2==4)

RGB_LED_Write_24Bits(0,q,q);

else if(BLINK_2==5)

RGB_LED_Write_24Bits(q,0,q);

delay_ms(1);

}

else

{

 

 

}

}

}  

}

Video demo

Liam · 29 September 2021 04:03

Hey Lance,

Looks amazing, excellent work! Nice UI btw

Liam.

Lance167598 · 21 October 2021 02:55

Thank you very much! I will continue to improve.