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Arduino-Joystick2Csound1g-fm1-port (version with smoothing) - Push Joystick button to turn on note - Use JoystickX to offset and control the modulation index of the foscil opcode from 0-40 via the scale opcode - Use JoystickY to offset and control the Frequency of the foscil opcode up/down two octaves via the scale opcode <CsoundSynthesizer> <CsInstruments> ; Required settings for WebAudio: sr = 48000 ksmps = 128 nchnls = 2 nchnls_i = 1 ; sr = 44100 ; ksmps = 441 ; nchnls = 2 0dbfs = 1 giport init 0 // NOTE: change USB port "/dev/cu.usbmodem1414301" to correspond // with USB port used by Arduino on your system giport arduinoStart "//dev/ttyACM0", 9600 // for GNULinux instr 1 kY arduinoRead giport, 1 ; Joystick Y kX arduinoRead giport, 2 ; Joystick X kSW arduinoRead giport, 3 ; Joystick Button/Switch kAmp init 0 kFreq init 0 kIndx init 1 kXraw = kX kX port kXraw, .02 // smoothed kY stream kYraw = kY kY port kYraw, .02 // smoothed kY stream kYscaled scale kY, 400, 100, 1023, 0 ; scaling the raw sensor ; data to a user-defined ; range of (100-400) kXscaled scale kX, 40, 0, 1023, 0 ; scaling the raw sensor ; data to a user-defined ; range of (0-40) if(kSW == 1) then kAmp = .333 elseif(kSW == 0) then kAmp = 0 endif aOut foscil 1, kFreq + kYscaled, 1, 1, kIndx + kXscaled, 1 outs aOut * kAmp, aOut * kAmp printks "Button=%d, RawX=%d, ScaleX=%d, RawY=%d, ScaleY=%d \\n", \ .5, kSW, kX, kXscaled, kY, kYscaled endin </CsInstruments> <CsScore> f 1 0 16384 10 1 i 1 0 z e </CsScore> </CsoundSynthesizer> <arduinoSketch> // Joystick Example // John ffitch & Richard Boulanger // June 11, 2020 // BreadBoard & Arduino Setup // Insert the Joystick Controller into the breadboard // NOTE: Joystick Pins (in order from left to right) are: GND, 5V, vrX, vrY, SW // Connect the power rails on breadboard to 5V and GND on Arduino // Connect GND and 5V from Joystick to + and - power rails on // the breadboard // Connect Joystick vrX on breadboard to Analog In A0 on the Arduino // Connect Joystick vrY on breadboard to Analog In A1 on the Arduino // Connect Joystick SW on breadboard to Digital Pin 2 on Arduino // Arduino pin numbers // Note: Because of the way that the Joystick stands up in a // breadboard, in this example the vrX and vrY have been swapped. const int SW_pin = 2; // Joystick switch output connected to // Arduino digital pin 2 const int Y_pin = 0; // Joystick Y output connected to Arduino // analog pin A0 const int X_pin = 1; // Joystick X output connected to Arduino // analog pin A1 int lastState_SW_pin = 1; int currentState_SW_pin; void setup() { // NOTE: Digital pins can be either inputs or outputs. pinMode(SW_pin, INPUT_PULLUP); // Setting digital pin to input mode // and using onboard pullup resistor // to reduce noise. Serial.begin(9600); } // put_val( ) - a function to send data values to the Csound // "arduinoRead" opcode // The first argument of the put_val function "int senChan" sets // the software channel number that Csound reads // NOTE: "senChan" does "not" define the input pin that is used on // the Arduino for a specific sensor // The specific Arduino input pin used by any sensor is assigned // and set elsewhere in the Arduino sketch and mapped to a // user-defined put_val "senChan" channel void put_val(int senChan, int senVal) // Set the Csound receive channel "senChan", and read from // the sensor data stream "senVal" { // The packing of the data is sssssvvv 0vvvvvvv where s is a // senChan bit, v a senVal bit and 0 is zero` bit int low = senVal&0x7f; int hi = ((senVal>>7)&0x0f) | ((senChan&0x0f)<<4); Serial.write(low); Serial.write(hi); } void loop() { Serial.write(0xf8); int currentState_SW_pin = digitalRead(SW_pin); // reading digital // input 2 and // assigning it to // "currentState..." if (currentState_SW_pin != lastState_SW_pin) { // checking if the value has changed if (currentState_SW_pin == 1) { put_val(3,0); // In this sketch, the Joystick button, //in Arduino digital pin 2, is sending a 0 or 1 // to Csound arduinoRead channel 3 } else { put_val(3,1); } } lastState_SW_pin = currentState_SW_pin; int X = analogRead(X_pin); // reading the Joystick vrX data // (0-1023) and asigning to X put_val(2,X); // In this sketch, the Joystick vrX, // in Arduino analog pin A1, is sending // a 0-1023 to Csound arduinoRead channel 2 int Y = analogRead(Y_pin); // reading the Joystick vrY data // (0-1023) and asigning to Y put_val(1,Y); // In this sketch, the Joystick vrY, // in Arduino analog pin A0, is sending // a 0-1023 to Csound arduinoRead channel 1 delay(10); } </arduinoSketch>