โมดูล วัดค่าสี อ่านค่าสี  RGB Colour Sensor (TCS230/TCS3200) สำหรับ Arduino

โมดูลวัดค่าสี RGB Colour Sensor (TCS230/TCS3200) เซนเซอร์แยกสี ใช้แยกว่าสีที่อยู่หน้าเซนเซอร์นี้เป็นสีอะไร เอาต์พุตที่อ่านได้ ออกมาเป็นค่า R G B ใช้งานง่าย มีไฟ Flash สำหรับตรวจจับสีวัตถุในที่มืด สามารถสั่งควบคุมเปิดปิดไฟได้จากในโคดโปรแกรม พื้นหลังเป็นสีขาวมีกระบอกพลาสติกสีดำ กันไม่ให้สีอื่นไปรบกวน ไม่ต้องหาต่อที่กั้นแสงเพิ่ม 

รายละเอียด Color Recognition Sensor Detector (TCS230/TCS3200)

- Using imported chip TCS3200
- The TCS3200 is TCS230 upgraded version better
- Power supply 3-5v
- Resistance to light interference
- White LED can be controlled on, off.
- Can detect non-luminous object color
- Best detection distance 1cm

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 library /code 

• https://www.dropbox.com/s/j6zhcv0nxpfo9go/MD_TCS230_v1.0_20130222.zip?dl=0

• http://www.mediafire.com/download/e9a269a9s0pjvlt/MD_TCS230_v1.0_20130222.zip

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ตัวอย่างการใช้งาน

Vcc -> 5v
Gnd -> Gnd
s0 -> 5v
s1 -> 5v
s2 -> 12
s3 -> 13
OUT -> 5
LED -> 7

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 ตัวอย่างCode

// TCS230 sensor calibration and color readings
//
// Input and output using the Serial console.
//

#include 
#include 

#define BLACK_CAL 0
#define WHITE_CAL 1
#define READ_VAL 2

// Pin definitions
#define S2_OUT 12
#define S3_OUT 13
#define OE_OUT 8 // LOW = ENABLED
int led = 7;

MD_TCS230 CS(S2_OUT, S3_OUT, OE_OUT);

void setup()
{
pinMode(led, OUTPUT);
digitalWrite(led, 0);
Serial.begin(57600);
Serial.print(F("\n[TCS230 Calibrator Example]"));

CS.begin();
}

char getChar()
// blocking wait for an input character from the input stream
{
while (Serial.available() == 0)
;
return(toupper(Serial.read()));
}

void clearInput()
// clear all characters from the serial input
{
while (Serial.read() != -1)
;
}

uint8_t fsmReadValue(uint8_t state, uint8_t valType, uint8_t maxReads)
// Finite State Machine for reading a value from the sensor
// Current FSM state is passed in and returned
// Type of value being read is passed in
{
static uint8_t selChannel;
static uint8_t readCount;
static sensorData sd;

switch(state)
{
case 0: // Prompt for the user to start
digitalWrite(led,0);
Serial.print(F("\n\nReading value for "));
switch(valType)
{
case BLACK_CAL: Serial.print(F("BLACK calibration")); break;
case WHITE_CAL: Serial.print(F("WHITE calibration")); break;
case READ_VAL: Serial.print(F("DATA")); break;
default: Serial.print(F("??")); break;
}

Serial.print(F("\nPress any key to start ..."));
state++;
break;

case 1: // Wait for user input
getChar();
clearInput();
state++;
break;

case 2: // start the reading process
digitalWrite(led,1);
CS.read();
state++;
break;

case 3: // wait for a read to complete
if (CS.available())
{
sensorData sd;
colorData rgb;

switch(valType)
{
case BLACK_CAL:
CS.getRaw(&sd);
CS.setDarkCal(&sd);
break;

case WHITE_CAL:
CS.getRaw(&sd);
CS.setWhiteCal(&sd);
break;

case READ_VAL:
CS.getRGB(&rgb);
Serial.print(F("\nRGB is ["));
Serial.print(rgb.value[TCS230_RGB_R]);
Serial.print(F(","));
Serial.print(rgb.value[TCS230_RGB_G]);
Serial.print(F(","));
Serial.print(rgb.value[TCS230_RGB_B]);
Serial.print(F("]"));
break;
}
state++;
digitalWrite(led,0);
}
break;

default: // reset fsm
state = 0;
break;
}

return(state);
}


void loop()
{
static uint8_t runState = 0;
static uint8_t readState = 0;

switch(runState)
{
case 0: // calibrate black
readState = fsmReadValue(readState, BLACK_CAL, 2);
if (readState == 0) runState++;
break;

case 1: // calibrate white
readState = fsmReadValue(readState, WHITE_CAL, 2);
if (readState == 0) runState++;
break;

case 2: // read color
readState = fsmReadValue(readState, READ_VAL, 1);
break;

default:
runState = 0; // start again if we get here as something is wrong
}
}