Example projects won't compile - i.e BarometricPressureSensor

Hi, I'm Okamiya in Gadget Renesas.

I tried compiling the below code as described in the following web site. There is no problem with that. Can you tell me which code you tried.

www.arduino.cc/.../BarometricPressureSensor

#include <SPI.h>
//Sensor&apos;s memory register addresses:
const int PRESSURE = 0x1F; //3 most significant bits of pressure
const int PRESSURE_LSB = 0x20; //16 least significant bits of pressure
const int TEMPERATURE = 0x21; //16 bit temperature reading
const byte READ = 0b11111100; // SCP1000&apos;s read command
const byte WRITE = 0b00000010; // SCP1000&apos;s write command
// pins used for the connection with the sensor
// the other you need are controlled by the SPI library):
const int dataReadyPin = 6;
const int chipSelectPin = 7;
void setup() {
 Serial.begin(9600);
 // start the SPI library:
 SPI.begin();
 // initalize the data ready and chip select pins:
 pinMode(dataReadyPin, INPUT);
 pinMode(chipSelectPin, OUTPUT);
 //Configure SCP1000 for low noise configuration:
 writeRegister(0x02, 0x2D);
 writeRegister(0x01, 0x03);
 writeRegister(0x03, 0x02);
 // give the sensor time to set up:
 delay(100);
}

void loop() {
 //Select High Resolution Mode
 writeRegister(0x03, 0x0A);
 // don&apos;t do anything until the data ready pin is high:
 if (digitalRead(dataReadyPin) == HIGH) {
 //Read the temperature data
 int tempData = readRegister(0x21, 2);
 // convert the temperature to celsius and display it:
 float realTemp = (float)tempData / 20.0;
 Serial.print("Temp[C]=");
 Serial.print(realTemp);
 //Read the pressure data highest 3 bits:
 byte pressure_data_high = readRegister(0x1F, 1);
 pressure_data_high &= 0b00000111; //you only needs bits 2 to 0
 //Read the pressure data lower 16 bits:
 unsigned int pressure_data_low = readRegister(0x20, 2);
 //combine the two parts into one 19-bit number:
 long pressure = ((pressure_data_high << 16) | pressure_data_low) / 4;
 // display the temperature:
 Serial.println("\tPressure [Pa]=" + String(pressure));
 }
}

//Read from or write to register from the SCP1000:
unsigned int readRegister(byte thisRegister, int bytesToRead) {
 byte inByte = 0; // incoming byte from the SPI
 unsigned int result = 0; // result to return
 Serial.print(thisRegister, BIN);
 Serial.print("\t");
 // SCP1000 expects the register name in the upper 6 bits
 // of the byte. So shift the bits left by two bits:
 thisRegister = thisRegister << 2;
 // now combine the address and the command into one byte
 byte dataToSend = thisRegister & READ;
 Serial.println(thisRegister, BIN);
 // take the chip select low to select the device:
 digitalWrite(chipSelectPin, LOW);
 // send the device the register you want to read:
 SPI.transfer(dataToSend);
 // send a value of 0 to read the first byte returned:
 result = SPI.transfer(0x00);
 // decrement the number of bytes left to read:
 bytesToRead--;
 // if you still have another byte to read:
 if (bytesToRead > 0) {
 // shift the first byte left, then get the second byte:
 result = result << 8;
 inByte = SPI.transfer(0x00);
 // combine the byte you just got with the previous one:
 result = result | inByte;
 // decrement the number of bytes left to read:
 bytesToRead--;
 }
 // take the chip select high to de-select:
 digitalWrite(chipSelectPin, HIGH);
 // return the result:
 return (result);
}

//Sends a write command to SCP1000

void writeRegister(byte thisRegister, byte thisValue) {
 // SCP1000 expects the register address in the upper 6 bits
 // of the byte. So shift the bits left by two bits:
 thisRegister = thisRegister << 2;
 // now combine the register address and the command into one byte:
 byte dataToSend = thisRegister | WRITE;
 // take the chip select low to select the device:
 digitalWrite(chipSelectPin, LOW);
 SPI.transfer(dataToSend); //Send register location
 SPI.transfer(thisValue); //Send value to record into register
 // take the chip select high to de-select:
 digitalWrite(chipSelectPin, HIGH);
}

Hi, I'm Okamiya in Gadget Renesas.

I tried compiling the below code as described in the following web site. There is no problem with that. Can you tell me which code you tried.

www.arduino.cc/.../BarometricPressureSensor

#include <SPI.h>
//Sensor&apos;s memory register addresses:
const int PRESSURE = 0x1F; //3 most significant bits of pressure
const int PRESSURE_LSB = 0x20; //16 least significant bits of pressure
const int TEMPERATURE = 0x21; //16 bit temperature reading
const byte READ = 0b11111100; // SCP1000&apos;s read command
const byte WRITE = 0b00000010; // SCP1000&apos;s write command
// pins used for the connection with the sensor
// the other you need are controlled by the SPI library):
const int dataReadyPin = 6;
const int chipSelectPin = 7;
void setup() {
 Serial.begin(9600);
 // start the SPI library:
 SPI.begin();
 // initalize the data ready and chip select pins:
 pinMode(dataReadyPin, INPUT);
 pinMode(chipSelectPin, OUTPUT);
 //Configure SCP1000 for low noise configuration:
 writeRegister(0x02, 0x2D);
 writeRegister(0x01, 0x03);
 writeRegister(0x03, 0x02);
 // give the sensor time to set up:
 delay(100);
}

void loop() {
 //Select High Resolution Mode
 writeRegister(0x03, 0x0A);
 // don&apos;t do anything until the data ready pin is high:
 if (digitalRead(dataReadyPin) == HIGH) {
 //Read the temperature data
 int tempData = readRegister(0x21, 2);
 // convert the temperature to celsius and display it:
 float realTemp = (float)tempData / 20.0;
 Serial.print("Temp[C]=");
 Serial.print(realTemp);
 //Read the pressure data highest 3 bits:
 byte pressure_data_high = readRegister(0x1F, 1);
 pressure_data_high &= 0b00000111; //you only needs bits 2 to 0
 //Read the pressure data lower 16 bits:
 unsigned int pressure_data_low = readRegister(0x20, 2);
 //combine the two parts into one 19-bit number:
 long pressure = ((pressure_data_high << 16) | pressure_data_low) / 4;
 // display the temperature:
 Serial.println("\tPressure [Pa]=" + String(pressure));
 }
}

//Read from or write to register from the SCP1000:
unsigned int readRegister(byte thisRegister, int bytesToRead) {
 byte inByte = 0; // incoming byte from the SPI
 unsigned int result = 0; // result to return
 Serial.print(thisRegister, BIN);
 Serial.print("\t");
 // SCP1000 expects the register name in the upper 6 bits
 // of the byte. So shift the bits left by two bits:
 thisRegister = thisRegister << 2;
 // now combine the address and the command into one byte
 byte dataToSend = thisRegister & READ;
 Serial.println(thisRegister, BIN);
 // take the chip select low to select the device:
 digitalWrite(chipSelectPin, LOW);
 // send the device the register you want to read:
 SPI.transfer(dataToSend);
 // send a value of 0 to read the first byte returned:
 result = SPI.transfer(0x00);
 // decrement the number of bytes left to read:
 bytesToRead--;
 // if you still have another byte to read:
 if (bytesToRead > 0) {
 // shift the first byte left, then get the second byte:
 result = result << 8;
 inByte = SPI.transfer(0x00);
 // combine the byte you just got with the previous one:
 result = result | inByte;
 // decrement the number of bytes left to read:
 bytesToRead--;
 }
 // take the chip select high to de-select:
 digitalWrite(chipSelectPin, HIGH);
 // return the result:
 return (result);
}

//Sends a write command to SCP1000

void writeRegister(byte thisRegister, byte thisValue) {
 // SCP1000 expects the register address in the upper 6 bits
 // of the byte. So shift the bits left by two bits:
 thisRegister = thisRegister << 2;
 // now combine the register address and the command into one byte:
 byte dataToSend = thisRegister | WRITE;
 // take the chip select low to select the device:
 digitalWrite(chipSelectPin, LOW);
 SPI.transfer(dataToSend); //Send register location
 SPI.transfer(thisValue); //Send value to record into register
 // take the chip select high to de-select:
 digitalWrite(chipSelectPin, HIGH);
}