#include <SPI.h>

void loadDrain(void);
const int slaveSelectPin = 53;
void setup() {
  pinMode(slaveSelectPin, OUTPUT);
  SPI.begin();
  Serial.begin(9600);
}

void loop() {
  loadDrain();
}

void loadDrain(){
  SPI.beginTransaction(SPISettings(30000000, MSBFIRST, SPI_MODE2));
  digitalWrite(slaveSelectPin, LOW);
  SPI.transfer(00001111);
  digitalWrite(slaveSelectPin, HIGH);
  SPI.endTransaction();
  Serial.println(analogRead(A0) >> 3);
}