SD Card shield and TCRT5000 sensor aren't working together on arduino uno

Question

I need to work with SD card and TCRT5000 sensor (Reflective Optical Sensor with Transistor Output) and save data from sensor to file. So I select Arduino Uno and added to it a SD card shield(from LC STUDIO) and a TCRT5000 sensor but it isn't working. My circuit and code is here:

#include <SPI.h>
#include <SD.h>

const int chipSelect = 10;

void setup() {
  Serial.begin(9600);
  pinMode(chipSelect, OUTPUT);
  if (!SD.begin(chipSelect)) {
    Serial.println("Card failed, or not present");
    while(true);
  }
  Serial.println("card initialized.");
  File dataFile = SD.open("test.txt", FILE_WRITE);
  dataFile.close();
  dataFile = SD.open("test.txt", FILE_WRITE);
  if(dataFile){
    dataFile.println("Start:");
  }else{
    Serial.println("Error in creating file.");
    while(true);
  }
}

void loop() {
  float value = analogRead(A3);
  File dataFile = SD.open("test.txt", FILE_WRITE);
  if (dataFile) {
    dataFile.println(value);
    Serial.println(value);
    dataFile.close();
  }else{
    Serial.println("Error in opening file.");
  }
  delay(5);
}

When TCRT5000 isn't connected SD card working without any problem. I think it is related to current and supply current. Any idea?

Answer 1

Did you figure this out yet? If not, you have the +5 volts going to the GND on the breadboard, causing a short.