/* Read the information that is stored on a Vernier LabQuest sensor and prints it to the Serial Monitor and LCD display, and then take readings and print the sensor measurements to the Serial Monitor and LCD display. - Connect the Vernier Arduino Interface Shield to a RedBoard, UNO R3 or R4. - Connect a Vernier LabQuest sensor to ANALOG 1 - Connect a Vernier Digital Control Unit (DCU) to DIGITAL 2 - Connect the LCD pins RX, GND, VDD to DCU lines D4, GND, XP, respectively. - Upload the code and then view the output on the LCD display or Serial Monitor */ #include //library used in printing to display #include "VernierLib.h" VernierLib Vernier; const int buttonPin=12; //button on Vernier Interface Shield int buttonState = 0;//variable for reading the pushbutton char namestring[17];//character array for printing strings to display char tempstring[16]; // character array used to create string for displaying numbers SoftwareSerial mySerial(3,9); //for display, pin 9 = TX, pin 3 = RX (unused) // Configure Serial Monitor and read sensor information void setup(void) { Serial.begin(9600); while (!Serial); delay(4000); //Need time for the Serial Monitor to become available mySerial.begin(9600); // for sending characters to display delay(500); // wait for display to boot up mySerial.write(124); // adjust backlight brightness of display mySerial.write(150); //max=157, 150=73%, 130=40%,128=off Vernier.autoID(); // automatically identify the LabQuest sensor printSensorInfo(); //send characters to 2-line display //Display Name, Units, and Page mySerial.write(254); // cursor to beginning of first line mySerial.write(128); mySerial.print(" "); // clear display for next loop mySerial.print(" "); mySerial.write(254); // cursor to beginning of first line (position 128) mySerial.write(128); mySerial.print(Vernier.sensorName()); // display name on first line mySerial.write(254); // cursor to beginning of second line mySerial.write(192); mySerial.print(Vernier.sensorUnits()); // display units on second line mySerial.write(254);// cursor to the end of second line mySerial.write(204); mySerial.print("p=");// display page at end of second line (-1 if resistor ID) mySerial.print(Vernier.page()); delay(2000); // short delay mySerial.print(" "); // clear display for what is next mySerial.print(" "); //Special section to display equation type, slope, intercept, and c, if button is pressed: buttonState = digitalRead(buttonPin); // check if the pushbutton is pressed. // if it is, the buttonState is LOW: if (buttonState == LOW) { //Display SensorNumber, cal equation type, and a (intercept) mySerial.write(254); // cursor to beginning of first line mySerial.write(128); mySerial.print("#"); mySerial.print(Vernier.sensorNumber()); // Sensor ID number mySerial.write(254);// cursor to middle of the first line mySerial.write(133); // cursor to position 6 of first line mySerial.print(" cal eq="); // // display cal eq type mySerial.print(Vernier.calEquationType()); // // display page at end of second line mySerial.write(254); // cursor to beginning of 2nd line mySerial.write(192); mySerial.print("a(int)="); mySerial.print(Vernier.intercept()); delay (2000); //Display b(slope), and c (cfactor): mySerial.print(" "); // clear display for next loop mySerial.print(" "); mySerial.write(254); // cursor to beginning of first line mySerial.write(128); mySerial.print("b(sl)="); // one space mySerial.print(Vernier.slope()); // mySerial.write(254); // cursor to beginning of second line mySerial.write(192); mySerial.print("c="); mySerial.print(Vernier.cFactor()); // delay (2000); //Display shortName and AutoID voltage: mySerial.write(254); // cursor to beginning of first line (position 128) mySerial.write(128); mySerial.print(" "); // clear display for next loop mySerial.print(" "); mySerial.write(254); // cursor to beginning of first line (position 128) mySerial.write(128); mySerial.print(Vernier.shortName()); // display name on first line mySerial.write(254); // cursor to near the beginning of first line mySerial.write(192); mySerial.print("ID volts="); mySerial.print(Vernier.voltageID()); // print out the raw voltage from the sensor delay (2000); }// end of special display done if button is down //set up screen for displaying data: mySerial.write(254); // cursor to beginning of first line mySerial.write(128); mySerial.print(" "); // clear display for next loop mySerial.print(" "); mySerial.write(254); // cursor to beginning of first line (position 128) mySerial.write(128); mySerial.print(Vernier.sensorName()); // display name on first line mySerial.write(254); // cursor to middle of the second line mySerial.write(200); mySerial.print(Vernier.sensorUnits()); // display units on second line } // Take sensor readings void loop() { float sensorReading =Vernier.readSensor(); Serial.print(sensorReading); Serial.print(" "); Serial.println(Vernier.sensorUnits()); mySerial.write(254); // command character mySerial.write(192); // move to line 2, position 0, mySerial.print(sensorReading); mySerial.write(254); // command character mySerial.write(200); // move to line 2, position 7 mySerial.print(Vernier.sensorUnits()); // print out sensor units delay(1000);// a second mySerial.write(254); // cursor to beginning of first line mySerial.write(192); mySerial.print(" "); // clear 2nd line of display for next loop } // function to get the sensor's stored information void printSensorInfo() { // print out information about the sensor found: Serial.println("Sensor Information"); Serial.print("Sensor ID number: "); Serial.print("\t"); Serial.println(Vernier.sensorNumber()); Serial.print("Sensor Name: "); Serial.print("\t"); Serial.println(Vernier.sensorName()); Serial.print("Short Name: "); Serial.print("\t"); Serial.println(Vernier.shortName()); Serial.print("Units: "); Serial.print("\t"); Serial.println(Vernier.sensorUnits()); Serial.print("ID voltage level: "); Serial.print("\t"); Serial.println(Vernier.voltageID()); Serial.print("Page: "); Serial.print("\t"); Serial.println(Vernier.page()); Serial.print("slope: "); Serial.print("\t"); Serial.println(Vernier.slope()); Serial.print("intercept: "); Serial.print("\t"); Serial.println(Vernier.intercept()); Serial.print("cFactor:"); Serial.print("\t"); Serial.println(Vernier.cFactor()); Serial.print("calEquationType: "); Serial.print("\t"); Serial.println(Vernier.calEquationType()); }