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Diffstat (limited to 'libraries/SPI/examples')
3 files changed, 0 insertions, 357 deletions
diff --git a/libraries/SPI/examples/BarometricPressureSensor/BarometricPressureSensor.ino b/libraries/SPI/examples/BarometricPressureSensor/BarometricPressureSensor.ino deleted file mode 100644 index 9d77a42..0000000 --- a/libraries/SPI/examples/BarometricPressureSensor/BarometricPressureSensor.ino +++ /dev/null @@ -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); -} - diff --git a/libraries/SPI/examples/BarometricPressureSensor/BarometricPressureSensor/BarometricPressureSensor.ino b/libraries/SPI/examples/BarometricPressureSensor/BarometricPressureSensor/BarometricPressureSensor.ino deleted file mode 100644 index 9c9c9b6..0000000 --- a/libraries/SPI/examples/BarometricPressureSensor/BarometricPressureSensor/BarometricPressureSensor.ino +++ /dev/null @@ -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 -cont byte READ = 0b00000000; // 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 - - // 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 - dataToSend = thisRegister & READ; - - // 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: - 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); -} - - - diff --git a/libraries/SPI/examples/DigitalPotControl/DigitalPotControl.ino b/libraries/SPI/examples/DigitalPotControl/DigitalPotControl.ino deleted file mode 100644 index adf93a2..0000000 --- a/libraries/SPI/examples/DigitalPotControl/DigitalPotControl.ino +++ /dev/null @@ -1,71 +0,0 @@ -/* - Digital Pot Control - - This example controls an Analog Devices AD5206 digital potentiometer. - The AD5206 has 6 potentiometer channels. Each channel's pins are labeled - A - connect this to voltage - W - this is the pot's wiper, which changes when you set it - B - connect this to ground. - - The AD5206 is SPI-compatible,and to command it, you send two bytes, - one with the channel number (0 - 5) and one with the resistance value for the - channel (0 - 255). - - The circuit: - * All A pins of AD5206 connected to +5V - * All B pins of AD5206 connected to ground - * An LED and a 220-ohm resisor in series connected from each W pin to ground - * CS - to digital pin 10 (SS pin) - * SDI - to digital pin 11 (MOSI pin) - * CLK - to digital pin 13 (SCK pin) - - created 10 Aug 2010 - by Tom Igoe - - Thanks to Heather Dewey-Hagborg for the original tutorial, 2005 - -*/ - - -// inslude the SPI library: -#include <SPI.h> - - -// set pin 10 as the slave select for the digital pot: -const int slaveSelectPin = 10; - -void setup() { - // set the slaveSelectPin as an output: - pinMode (slaveSelectPin, OUTPUT); - // initialize SPI: - SPI.begin(); -} - -void loop() { - // go through the six channels of the digital pot: - for (int channel = 0; channel < 6; channel++) { - // change the resistance on this channel from min to max: - for (int level = 0; level < 255; level++) { - digitalPotWrite(channel, level); - delay(10); - } - // wait a second at the top: - delay(100); - // change the resistance on this channel from max to min: - for (int level = 0; level < 255; level++) { - digitalPotWrite(channel, 255 - level); - delay(10); - } - } - -} - -void digitalPotWrite(int address, int value) { - // take the SS pin low to select the chip: - digitalWrite(slaveSelectPin,LOW); - // send in the address and value via SPI: - SPI.transfer(address); - SPI.transfer(value); - // take the SS pin high to de-select the chip: - digitalWrite(slaveSelectPin,HIGH); -} |