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authorFede85 <f.vanzati@gmail.com>2013-07-03 22:00:02 +0200
committerFede85 <f.vanzati@gmail.com>2013-07-03 22:00:02 +0200
commitfd8c367304fe62a107332db19880c88f9ac0d082 (patch)
treea6a2713b1e788a2eb6f95ef701a0a01e0d258c67 /libraries/SPI/examples/BarometricPressureSensor/BarometricPressureSensor.ino
parentcb3003082e7e140850071eba914c0b4347bc3bf1 (diff)
SPI library to the new format and moved Robot_Motor and Robot_Control libraries
Diffstat (limited to 'libraries/SPI/examples/BarometricPressureSensor/BarometricPressureSensor.ino')
-rw-r--r--libraries/SPI/examples/BarometricPressureSensor/BarometricPressureSensor.ino143
1 files changed, 0 insertions, 143 deletions
diff --git a/libraries/SPI/examples/BarometricPressureSensor/BarometricPressureSensor.ino b/libraries/SPI/examples/BarometricPressureSensor/BarometricPressureSensor.ino
deleted file mode 100644
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--- a/libraries/SPI/examples/BarometricPressureSensor/BarometricPressureSensor.ino
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@@ -1,143 +0,0 @@
-/*
- SCP1000 Barometric Pressure Sensor Display
-
- Shows the output of a Barometric Pressure Sensor on a
- Uses the SPI library. For details on the sensor, see:
- http://www.sparkfun.com/commerce/product_info.php?products_id=8161
- http://www.vti.fi/en/support/obsolete_products/pressure_sensors/
-
- This sketch adapted from Nathan Seidle's SCP1000 example for PIC:
- http://www.sparkfun.com/datasheets/Sensors/SCP1000-Testing.zip
-
- Circuit:
- SCP1000 sensor attached to pins 6, 7, 10 - 13:
- DRDY: pin 6
- CSB: pin 7
- MOSI: pin 11
- MISO: pin 12
- SCK: pin 13
-
- created 31 July 2010
- modified 14 August 2010
- by Tom Igoe
- */
-
-// the sensor communicates using SPI, so include the library:
-#include <SPI.h>
-
-//Sensor'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's read command
-const byte WRITE = 0b00000010; // SCP1000'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'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);
-}
-