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一、前言
是基于AMS 的TCS3472XFN 彩色光數(shù)字轉(zhuǎn)換器為核心的顏色傳感器，傳感器提供紅色，綠色，藍(lán)色（RGB）和清晰光感應(yīng)值的數(shù)字輸出。集成紅外阻擋濾光片可最大限度地減少入射光的紅外光譜成分，并可精確地進(jìn)行顏色測(cè)量。具有高靈敏度，寬動(dòng)態(tài)范圍和紅外阻隔濾波器。最小化IR 和UV 光譜分量效應(yīng)，以產(chǎn)生準(zhǔn)確的顏色測(cè)量。并且?guī)в协h(huán)境光強(qiáng)檢測(cè)和可屏蔽中斷。通過(guò)I2C 接口通信。本設(shè)計(jì)基于同一個(gè)設(shè)計(jì)原理，提供2 個(gè)不同造型設(shè)計(jì)（方形版本/雙孔版本）
產(chǎn)品參數(shù)
工作電壓：3.3V/5V
控制芯片：TCS3472XFN
邏輯電壓：3.3V/5V
通信接口：I2C
二、資料獲取
關(guān)注微信公眾號(hào)--星之援工作室 發(fā)送關(guān)鍵字（TCS34725）
自己重新寫了一遍控制部分，并添加了反饋效果演示
????
三、設(shè)備使用
接線
接線方式如下，可根據(jù)個(gè)人喜好進(jìn)行引腳的切換
圖片演示
視頻演示
懸空會(huì)自動(dòng)反饋光譜最大的值進(jìn)行顯示
顏色識(shí)別
四、代碼編寫
main.c
實(shí)現(xiàn)函數(shù)調(diào)用
/*接線
星之援學(xué)習(xí)資料 顏色識(shí)別
VCC------------>供電
DIO------------>PB9
SCLK------------>PB8
LOAD------------>PB7
GND------------>接地
RGB
R ---- PC15
B ---- PC14
G ---- PC13
可以根據(jù)識(shí)別到的顏色值進(jìn)行亮燈提示
*/
#include "stm32f10x.h"
#include "delay.h"
#include "led.h"
#include "key.h"
#include "usart.h"
#include "tcs3472.h"
int main(void)
{
u16 time_cnt =0;
u8 rgb_max;
delay_init();
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2); //設(shè)置NVIC中斷分組2:2位搶占優(yōu)先級(jí)，2位響應(yīng)優(yōu)先級(jí)
// LED 端口初始化
LED_GPIO_Config();
// 串口初始化
uart_init(115200);
// 顏色識(shí)別
TCS34725_Init();
printf("init okn");
while ( 1 )
{
time_cnt++;
if(time_cnt %50 == 0){
TCS34725_GetRawData(&rgb); //讀兩次，實(shí)際測(cè)試時(shí)發(fā)現(xiàn)讀到的顏色總是上一次的顏色
RGBtoHSL(&rgb,&hsl);
// 反饋?zhàn)畲?
rgb_max = max3v(rgb.r,rgb.g,rgb.b);
if(rgb_max == rgb.r){
LED_RED
}
else if(rgb_max == rgb.g){
LED_GREEN
}
else if(rgb_max == rgb.b){
LED_BLUE
}
printf("R=%d G=%d B=%d C=%drn",rgb.r,rgb.g,rgb.b,rgb.c);
printf("H=%d S=%d L=%drn",hsl.h,hsl.s,hsl.l);
}
delay_ms(10);
}
}
tcs3472.h
#ifndef __TCS_H
#define __TCS_H
#include "stm32f10x.h"
/******************************************************************************/
#define TCS34725_ADDRESS (0x29)
#define TCS34725_COMMAND_BIT (0x80)
#define TCS34725_ENABLE (0x00)
#define TCS34725_ENABLE_AIEN (0x10) /* RGBC Interrupt Enable */
#define TCS34725_ENABLE_WEN (0x08) /* Wait enable - Writing 1 activates the wait timer */
#define TCS34725_ENABLE_AEN (0x02) /* RGBC Enable - Writing 1 actives the ADC, 0 disables it */
#define TCS34725_ENABLE_PON (0x01) /* Power on - Writing 1 activates the internal oscillator, 0 disables it */
#define TCS34725_ATIME (0x01) /* Integration time */
#define TCS34725_WTIME (0x03) /* Wait time (if TCS34725_ENABLE_WEN is asserted) */
#define TCS34725_WTIME_2_4MS (0xFF) /* WLONG0 = 2.4ms WLONG1 = 0.029s */
#define TCS34725_WTIME_204MS (0xAB) /* WLONG0 = 204ms WLONG1 = 2.45s */
#define TCS34725_WTIME_614MS (0x00) /* WLONG0 = 614ms WLONG1 = 7.4s */
#define TCS34725_AILTL (0x04) /* Clear channel lower interrupt threshold */
#define TCS34725_AILTH (0x05)
#define TCS34725_AIHTL (0x06) /* Clear channel upper interrupt threshold */
#define TCS34725_AIHTH (0x07)
#define TCS34725_PERS (0x0C) /* Persistence register - basic SW filtering mechanism for interrupts */
#define TCS34725_PERS_NONE (0b0000) /* Every RGBC cycle generates an interrupt */
#define TCS34725_PERS_1_CYCLE (0b0001) /* 1 clean channel value outside threshold range generates an interrupt */
#define TCS34725_PERS_2_CYCLE (0b0010) /* 2 clean channel values outside threshold range generates an interrupt */
#define TCS34725_PERS_3_CYCLE (0b0011) /* 3 clean channel values outside threshold range generates an interrupt */
#define TCS34725_PERS_5_CYCLE (0b0100) /* 5 clean channel values outside threshold range generates an interrupt */
#define TCS34725_PERS_10_CYCLE (0b0101) /* 10 clean channel values outside threshold range generates an interrupt */
#define TCS34725_PERS_15_CYCLE (0b0110) /* 15 clean channel values outside threshold range generates an interrupt */
#define TCS34725_PERS_20_CYCLE (0b0111) /* 20 clean channel values outside threshold range generates an interrupt */
#define TCS34725_PERS_25_CYCLE (0b1000) /* 25 clean channel values outside threshold range generates an interrupt */
#define TCS34725_PERS_30_CYCLE (0b1001) /* 30 clean channel values outside threshold range generates an interrupt */
#define TCS34725_PERS_35_CYCLE (0b1010) /* 35 clean channel values outside threshold range generates an interrupt */
#define TCS34725_PERS_40_CYCLE (0b1011) /* 40 clean channel values outside threshold range generates an interrupt */
#define TCS34725_PERS_45_CYCLE (0b1100) /* 45 clean channel values outside threshold range generates an interrupt */
#define TCS34725_PERS_50_CYCLE (0b1101) /* 50 clean channel values outside threshold range generates an interrupt */
#define TCS34725_PERS_55_CYCLE (0b1110) /* 55 clean channel values outside threshold range generates an interrupt */
#define TCS34725_PERS_60_CYCLE (0b1111) /* 60 clean channel values outside threshold range generates an interrupt */
#define TCS34725_CONFIG (0x0D)
#define TCS34725_CONFIG_WLONG (0x02) /* Choose between short and long (12x) wait times via TCS34725_WTIME */
#define TCS34725_CONTROL (0x0F) /* Set the gain level for the sensor */
#define TCS34725_ID (0x12) /* 0x44 = TCS34721/TCS34725, 0x4D = TCS34723/TCS34727 */
#define TCS34725_STATUS (0x13)
#define TCS34725_STATUS_AINT (0x10) /* RGBC Clean channel interrupt */
#define TCS34725_STATUS_AVALID (0x01) /* Indicates that the RGBC channels have completed an integration cycle */
#define TCS34725_CDATAL (0x14) /* Clear channel data */
#define TCS34725_CDATAH (0x15)
#define TCS34725_RDATAL (0x16) /* Red channel data */
#define TCS34725_RDATAH (0x17)
#define TCS34725_GDATAL (0x18) /* Green channel data */
#define TCS34725_GDATAH (0x19)
#define TCS34725_BDATAL (0x1A) /* Blue channel data */
#define TCS34725_BDATAH (0x1B)
#define TCS34725_INTEGRATIONTIME_2_4MS 0xFF /**< 2.4ms - 1 cycle - Max Count: 1024 */
#define TCS34725_INTEGRATIONTIME_24MS 0xF6 /**< 24ms - 10 cycles - Max Count: 10240 */
#define TCS34725_INTEGRATIONTIME_50MS 0xEB /**< 50ms - 20 cycles - Max Count: 20480 */
#define TCS34725_INTEGRATIONTIME_101MS 0xD5 /**< 101ms - 42 cycles - Max Count: 43008 */
#define TCS34725_INTEGRATIONTIME_154MS 0xC0 /**< 154ms - 64 cycles - Max Count: 65535 */
#define TCS34725_INTEGRATIONTIME_240MS 0x9C /**< 240ms - 100 cycles - Max Count: 65535 */
#define TCS34725_INTEGRATIONTIME_700MS 0x00 /**< 700ms - 256 cycles - Max Count: 65535 */
#define TCS34725_GAIN_1X 0x00 /**< No gain */
#define TCS34725_GAIN_4X 0x01 /**< 4x gain */
#define TCS34725_GAIN_16X 0x02 /**< 16x gain */
#define TCS34725_GAIN_60X 0x03 /**< 60x gain */
/* 定義IIC連接的GPIO端口, 用戶只需要修改下面的代碼即可改變控制的LED引腳 */
#define TCS_DIO_GPIO_PORT GPIOB /* GPIO端口 */
#define TCS_DIO_GPIO_CLK RCC_APB2Periph_GPIOB /* GPIO端口時(shí)鐘 */
#define TCS_DIO_GPIO_PIN GPIO_Pin_9
#define TCS_CLK_GPIO_PORT GPIOB /* GPIO端口 */
#define TCS_CLK_GPIO_CLK RCC_APB2Periph_GPIOB /* GPIO端口時(shí)鐘 */
#define TCS_CLK_GPIO_PIN GPIO_Pin_8
#define TCS_SCL_H GPIO_SetBits(TCS_CLK_GPIO_PORT,TCS_CLK_GPIO_PIN)
#define TCS_SCL_L GPIO_ResetBits(TCS_CLK_GPIO_PORT,TCS_CLK_GPIO_PIN)
#define TCS_SDA_H GPIO_SetBits(TCS_DIO_GPIO_PORT,TCS_DIO_GPIO_PIN)
#define TCS_SDA_L GPIO_ResetBits(TCS_DIO_GPIO_PORT,TCS_DIO_GPIO_PIN)
#define TCS_SDA_READ PBin(9)
/******************************************************************************/
#define max3v(v1, v2, v3) ((v1)<(v2)? ((v2)<(v3)?(v3):(v2)):((v1)<(v3)?(v3):(v1)))
#define min3v(v1, v2, v3) ((v1)>(v2)? ((v2)>(v3)?(v3):(v2)):((v1)>(v3)?(v3):(v1)))
typedef struct{
unsigned short c; //[0-65536]
unsigned short r;
unsigned short g;
unsigned short b;
}COLOR_RGBC;//RGBC
typedef struct{
unsigned short h; //[0,360]
unsigned char s; //[0,100]
unsigned char l; //[0,100]
}COLOR_HSL;//HSL
extern COLOR_RGBC rgb;
extern COLOR_HSL hsl;
// 端口初始化
u8 TCS34725_Init(void);
//RGB轉(zhuǎn)HSL
void RGBtoHSL(COLOR_RGBC *Rgb, COLOR_HSL *Hsl);
/*******************************************************************************
* @brief TCS34725獲取各個(gè)通道數(shù)據(jù)
*******************************************************************************/
u8 TCS34725_GetRawData(COLOR_RGBC *rgbc);
#endif /* TCS */
tcs3472.c
#include "tcs3472.h"
#include "delay.h"
COLOR_RGBC rgb;
COLOR_HSL hsl;
//端口初始化
void TCS34725_I2C_Init( void )
{
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB2PeriphClockCmd( TCS_DIO_GPIO_CLK, ENABLE );
GPIO_InitStructure.GPIO_Pin = TCS_DIO_GPIO_PIN | TCS_CLK_GPIO_PIN;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init( TCS_DIO_GPIO_PORT, &GPIO_InitStructure );
GPIO_SetBits(TCS_DIO_GPIO_PORT,TCS_DIO_GPIO_PIN | TCS_CLK_GPIO_PIN); //高電平
}
// 配置雙向I/O端口為輸出態(tài)
static void TCS_SDA_OUT()
{
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB2PeriphClockCmd(TCS_DIO_GPIO_CLK, ENABLE);
GPIO_InitStructure.GPIO_Pin = TCS_DIO_GPIO_PIN; // PC.10 DATA
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(TCS_DIO_GPIO_PORT, &GPIO_InitStructure); // 初始化GPIOC.10
}
// 配置雙向I/O端口為輸入態(tài)
static void TCS_SDA_IN()
{
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB2PeriphClockCmd(TCS_DIO_GPIO_CLK, ENABLE);
GPIO_InitStructure.GPIO_Pin = TCS_DIO_GPIO_PIN; // PC.10 DATA
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(TCS_DIO_GPIO_PORT, &GPIO_InitStructure); // 初始化GPIOC.10
}
/*********************************************/
void TCS34725_I2C_Start()
{
TCS_SDA_OUT();
TCS_SDA_H;
TCS_SCL_H;
delay_us(4);//delay_us(4);
TCS_SDA_L;
delay_us(4);//delay_us(4);
TCS_SCL_L;
}
/*********************************************/
void TCS34725_I2C_Stop()
{
TCS_SDA_OUT();
TCS_SCL_L;
TCS_SDA_L;
delay_us(4);//delay_us(4);
TCS_SCL_H;
TCS_SDA_H;
delay_us(4);//delay_us(4);
}
/*********************************************/
//返回值：1，接收應(yīng)答失敗
// 0，接收應(yīng)答成功
u8 TCS34725_I2C_Wait_ACK()
{
u32 t=0;
TCS_SDA_IN();//SDA設(shè)置為輸入
TCS_SDA_H;
delay_us(1);//delay_us(1);
TCS_SCL_H;
delay_us(1);//delay_us(1);
while(TCS_SDA_READ)
{
t++;
if(t > 250)
{
TCS34725_I2C_Stop();
return 1;
}
}
TCS_SCL_L;
return 0;
}
/*********************************************/
//產(chǎn)生ACK應(yīng)答
void TCS34725_I2C_ACK()
{
TCS_SCL_L;
TCS_SDA_OUT();//sda線輸出
TCS_SDA_L;
delay_us(2);//delay_us(2);
TCS_SCL_H;
delay_us(2);//delay_us(2);
TCS_SCL_L;
}
/*********************************************/
//不產(chǎn)生ACK應(yīng)答
void TCS34725_I2C_NACK()
{
TCS_SCL_L;
TCS_SDA_OUT();//sda線輸出
TCS_SDA_H;
delay_us(2);//delay_us(2);
TCS_SCL_H;
delay_us(2);//delay_us(2);
TCS_SCL_L;
}
/*********************************************/
//I2C發(fā)送一個(gè)字節(jié)
void TCS34725_I2C_Send_Byte(u8 byte)
{
u8 i;
TCS_SDA_OUT();//sda線輸出
TCS_SCL_L;//拉低時(shí)鐘開始數(shù)據(jù)傳輸
for(i = 0; i < 8; i++)
{
if(((byte&0x80)>>7)==1)TCS_SDA_H;
else
TCS_SDA_L;
byte <<= 1;
delay_us(2);//delay_us(2);
TCS_SCL_H;
delay_us(2);//delay_us(2);
TCS_SCL_L;
delay_us(2);//delay_us(2);
}
}
/*********************************************/
//讀1個(gè)字節(jié)，ack=1時(shí)，發(fā)送ACK，ack=0，發(fā)送nACK
u8 TCS34725_I2C_Read_Byte(u8 ack)
{
u8 i,receive = 0;
TCS_SDA_IN();
for(i = 0; i < 8; i++)
{
TCS_SCL_L;
delay_us(2);//delay_us(2);
TCS_SCL_H;
receive <<= 1;
if(TCS_SDA_READ) receive++;
delay_us(1);//delay_us(1);
}
if (!ack) TCS34725_I2C_NACK();//發(fā)送nACK
else TCS34725_I2C_ACK(); //發(fā)送ACK
return receive;
}
/*******************************************************************************
* @brief Writes data to a slave device.
*
* @param slaveAddress - Adress of the slave device.
* @param dataBuffer - Pointer to a buffer storing the transmission data.
* @param bytesNumber - Number of bytes to write.
* @param stopBit - Stop condition control.
* Example: 0 - A stop condition will not be sent;
* 1 - A stop condition will be sent.
*******************************************************************************/
void TCS34725_I2C_Write(u8 slaveAddress, u8* dataBuffer,u8 bytesNumber, u8 stopBit)
{
u8 i = 0;
TCS34725_I2C_Start();
TCS34725_I2C_Send_Byte((slaveAddress << 1) | 0x00); //發(fā)送從機(jī)地址寫命令
TCS34725_I2C_Wait_ACK();
for(i = 0; i < bytesNumber; i++)
{
TCS34725_I2C_Send_Byte(*(dataBuffer + i));
TCS34725_I2C_Wait_ACK();
}
if(stopBit == 1) TCS34725_I2C_Stop();
}
/*******************************************************************************
* @brief Reads data from a slave device.
*
* @param slaveAddress - Adress of the slave device.
* @param dataBuffer - Pointer to a buffer that will store the received data.
* @param bytesNumber - Number of bytes to read.
* @param stopBit - Stop condition control.
* Example: 0 - A stop condition will not be sent;
* 1 - A stop condition will be sent.
*******************************************************************************/
void TCS34725_I2C_Read(u8 slaveAddress, u8* dataBuffer, u8 bytesNumber, u8 stopBit)
{
u8 i = 0;
TCS34725_I2C_Start();
TCS34725_I2C_Send_Byte((slaveAddress << 1) | 0x01); //發(fā)送從機(jī)地址讀命令
TCS34725_I2C_Wait_ACK();
for(i = 0; i < bytesNumber; i++)
{
if(i == bytesNumber - 1)
{
*(dataBuffer + i) = TCS34725_I2C_Read_Byte(0);//讀取的最后一個(gè)字節(jié)發(fā)送NACK
}
else
{
*(dataBuffer + i) = TCS34725_I2C_Read_Byte(1);
}
}
if(stopBit == 1) TCS34725_I2C_Stop();
}
/*******************************************************************************
* @brief Writes data into TCS34725 registers, starting from the selected
* register address pointer.
*
* @param subAddr - The selected register address pointer.
* @param dataBuffer - Pointer to a buffer storing the transmission data.
* @param bytesNumber - Number of bytes that will be sent.
*
* @return None.
*******************************************************************************/
void TCS34725_Write(u8 subAddr, u8* dataBuffer, u8 bytesNumber)
{
u8 sendBuffer[10] = {0, };
u8 byte = 0;
sendBuffer[0] = subAddr | TCS34725_COMMAND_BIT;
for(byte = 1; byte <= bytesNumber; byte++)
{
sendBuffer[byte] = dataBuffer[byte - 1];
}
TCS34725_I2C_Write(TCS34725_ADDRESS, sendBuffer, bytesNumber + 1, 1);
}
/*******************************************************************************
* @brief Reads data from TCS34725 registers, starting from the selected
* register address pointer.
*
* @param subAddr - The selected register address pointer.
* @param dataBuffer - Pointer to a buffer that will store the received data.
* @param bytesNumber - Number of bytes that will be read.
*
* @return None.
*******************************************************************************/
void TCS34725_Read(u8 subAddr, u8* dataBuffer, u8 bytesNumber)
{
subAddr |= TCS34725_COMMAND_BIT;
TCS34725_I2C_Write(TCS34725_ADDRESS, (u8*)&subAddr, 1, 0);
TCS34725_I2C_Read(TCS34725_ADDRESS, dataBuffer, bytesNumber, 1);
}
/*******************************************************************************
* @brief TCS34725設(shè)置積分時(shí)間
*
* @return None
*******************************************************************************/
void TCS34725_SetIntegrationTime(u8 time)
{
TCS34725_Write(TCS34725_ATIME, &time, 1);
}
/*******************************************************************************
* @brief TCS34725設(shè)置增益
*
* @return None
*******************************************************************************/
void TCS34725_SetGain(u8 gain)
{
TCS34725_Write(TCS34725_CONTROL, &gain, 1);
}
/*******************************************************************************
* @brief TCS34725使能
*
* @return None
*******************************************************************************/
void TCS34725_Enable(void)
{
u8 cmd = TCS34725_ENABLE_PON;
TCS34725_Write(TCS34725_ENABLE, &cmd, 1);
cmd = TCS34725_ENABLE_PON | TCS34725_ENABLE_AEN;
TCS34725_Write(TCS34725_ENABLE, &cmd, 1);
//delay_s(600000);//delay_ms(3);//延時(shí)應(yīng)該放在設(shè)置AEN之后
}
/*******************************************************************************
* @brief TCS34725失能
*
* @return None
*******************************************************************************/
void TCS34725_Disable(void)
{
u8 cmd = 0;
TCS34725_Read(TCS34725_ENABLE, &cmd, 1);
cmd = cmd & ~(TCS34725_ENABLE_PON | TCS34725_ENABLE_AEN);
TCS34725_Write(TCS34725_ENABLE, &cmd, 1);
}
/*******************************************************************************
* @brief TCS34725初始化
*
* @return ID - ID寄存器中的值
*******************************************************************************/
u8 TCS34725_Init(void)
{
u8 id=0;
TCS34725_I2C_Init();
TCS34725_Read(TCS34725_ID, &id, 1); //TCS34725 的 ID 是 0x44 可以根據(jù)這個(gè)來(lái)判斷是否成功連接,0x4D是TCS34727;
if(id==0x4D | id==0x44)
{
TCS34725_SetIntegrationTime(TCS34725_INTEGRATIONTIME_50MS);
TCS34725_SetGain(TCS34725_GAIN_1X);
TCS34725_Enable();
return 1;
}
return 0;
}
/*******************************************************************************
* @brief TCS34725獲取單個(gè)通道數(shù)據(jù)
*
* @return data - 該通道的轉(zhuǎn)換值
*******************************************************************************/
u16 TCS34725_GetChannelData(u8 reg)
{
u8 tmp[2] = {0,0};
u16 data;
TCS34725_Read(reg, tmp, 2);
data = (tmp[1] << 8) | tmp[0];
return data;
}
/*******************************************************************************
* @brief TCS34725獲取各個(gè)通道數(shù)據(jù)
*
* @return 1 - 轉(zhuǎn)換完成，數(shù)據(jù)可用
* 0 - 轉(zhuǎn)換未完成，數(shù)據(jù)不可用
*******************************************************************************/
u8 TCS34725_GetRawData(COLOR_RGBC *rgbc)
{
u8 status = TCS34725_STATUS_AVALID;
TCS34725_Read(TCS34725_STATUS, &status, 1);
if(status & TCS34725_STATUS_AVALID)
{
rgbc->c = TCS34725_GetChannelData(TCS34725_CDATAL);
rgbc->r = TCS34725_GetChannelData(TCS34725_RDATAL);
rgbc->g = TCS34725_GetChannelData(TCS34725_GDATAL);
rgbc->b = TCS34725_GetChannelData(TCS34725_BDATAL);
return 1;
}
return 0;
}
/******************************************************************************/
//RGB轉(zhuǎn)HSL
void RGBtoHSL(COLOR_RGBC *Rgb, COLOR_HSL *Hsl)
{
u8 maxVal,minVal,difVal;
u8 r = Rgb->r*100/Rgb->c; //[0-100]
u8 g = Rgb->g*100/Rgb->c;
u8 b = Rgb->b*100/Rgb->c;
maxVal = max3v(r,g,b);
minVal = min3v(r,g,b);
difVal = maxVal-minVal;
//計(jì)算亮度
Hsl->l = (maxVal+minVal)/2; //[0-100]
if(maxVal == minVal)//若r=g=b,灰度
{
Hsl->h = 0;
Hsl->s = 0;
}
else
{
//計(jì)算色調(diào)
if(maxVal==r)
{
if(g>=b)
Hsl->h = 60*(g-b)/difVal;
else
Hsl->h = 60*(g-b)/difVal+360;
}
else
{
if(maxVal==g)Hsl->h = 60*(b-r)/difVal+120;
else
if(maxVal==b)Hsl->h = 60*(r-g)/difVal+240;
}
//計(jì)算飽和度
if(Hsl->l<=50)Hsl->s=difVal*100/(maxVal+minVal); //[0-100]
else
Hsl->s=difVal*100/(200-(maxVal+minVal));
}
}
/******************************************************************************/
?五、參考
TCS34725顏色感應(yīng)識(shí)別模塊https://blog.csdn.net/qq_42250136/article/details/125705450?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522171695366516800227437485%2522%252C%2522scm%2522%253A%252220140713.130102334..%2522%257D&request_id=171695366516800227437485&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2~all~top_click~default-2-125705450-null-null.142%5Ev100%5Epc_search_result_base4&utm_term=TCS34725&spm=1018.2226.3001.4187
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