Arduino -Peripheral Test Source code for SPI, I2C,GPIO, PWM,ADC

This file can be downloaded here ...

https://drive.google.com/drive/folders/0B02sL8YIqsjCeE9Db0RFQlFWdEk?usp=sharing

Enable macros to test ...

#include <Wire.h>
#include <SPI.h>

//#define LED_TEST
//#define ADC_TEST  // Pin A0 VCC, GND
//#define GPIO_TEST
//#define PWM_TEST
//#define I2C_TEST //A4 (SDA) and A5 (SCL)
#define SPI_TEST //SPI: 10 (SS), 11 (MOSI), 12 (MISO), 13 (SCK)


#ifdef SPI_TEST
#define spi_readwrite SPI.transfer
#define spi_read() spi_readwrite(0x00)

int  mcp2515_readRegister(const int  address)                                                                  
{
    int  ret;
int MCP_READ=45;
//    MCP2515_SELECT();
    spi_readwrite(MCP_READ);
    spi_readwrite(address);
    ret = spi_read();
  //  MCP2515_UNSELECT();

    return ret;
}

#endif


#ifdef I2C_TEST
#define I2C_ADDRESS 0x50
void writeEEPROM(int deviceaddress, unsigned int eeaddress, byte data )
{
  Wire.beginTransmission(deviceaddress);
  Wire.write((int)(eeaddress >> 8));   // MSB
  Wire.write((int)(eeaddress & 0xFF)); // LSB
  Wire.write(data);
  Wire.endTransmission();
  delay(5);
}

byte readEEPROM(int deviceaddress, unsigned int eeaddress )
{
  byte rdata = 0xFF;
  Wire.beginTransmission(deviceaddress);
  Wire.write((int)(eeaddress >> 8));   // MSB
  Wire.write((int)(eeaddress & 0xFF)); // LSB
  Wire.endTransmission();
  Wire.requestFrom(deviceaddress,1);
  if (Wire.available()) rdata = Wire.read();
  return rdata;
}
#endif


void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
#ifdef LED_TEST
  pinMode(13, OUTPUT);
#endif

#ifdef GPIO_TEST
  pinMode(2, OUTPUT); //D2
  pinMode(12, OUTPUT);//D12
  pinMode(13, OUTPUT);//D13
#endif
 SPI.begin();

}

void loop() {
  // put your main code here, to run repeatedly:
#ifdef LED_TEST
  digitalWrite(13, HIGH);
  delay(1000);          
  digitalWrite(13, LOW);  
  delay(1000);            
#endif
#ifdef ADC_TEST
 int sensorValue = analogRead(A0);
 Serial.println("value");
 Serial.println(sensorValue);
 delay(1);  
#endif
#ifdef GPIO_TEST
  digitalWrite(2, HIGH);
  digitalWrite(12, HIGH);
  digitalWrite(13, HIGH);
  delay(1000);          
  digitalWrite(2, LOW);
  digitalWrite(12, LOW);
  digitalWrite(13, LOW);
  delay(1000);            
#endif
#ifdef PWM_TEST
  analogWrite(9, 235);//pin D9
#endif
#ifdef  I2C_TEST
writeEEPROM(I2C_ADDRESS, 45, 123);
#endif
#ifdef SPI_TEST
{
mcp2515_readRegister(33);
}
#endif
}