Arduinoと処理。 COMポートを介してマイクロコントローラーを制御する方法。 双方向通信

 #define pinPot A1 #define pinLed 11 #define pinBtn 2 void setup() { pinMode(pinPot, INPUT); pinMode(pinLed, OUTPUT); pinMode(pinBtn, INPUT_PULLUP); Serial.begin(9600); Serial.println("The program starts.\n\n"); } void loop() { /* INITIAL VARIABLES. Segment 1 */ static char potMes[] = "Pot - "; static char btnMes[] = "Button is pressed!"; static char passLight[] = "Led - "; static int passLength = sizeof(passLight) - 1; static int sizepm = sizeof(potMes) - 1; static int sizebtn = sizeof(btnMes) - 1; static bool flagLedState = LOW; static bool flagBtnPress = false; static long int curTime = 0; static const int period = 200; static bool flagEnableRead = false; /* INITIAL VARIABLES. Segment 1 */ /* FUNCTIONS CALL. Segment 2 */ /* * Led is attached to HIGH voltage from one side * And to pin on the other side * By that the inverting logic */ ReadSerialForLed(passLight, passLength, &flagLedState); digitalWrite(pinLed, !flagLedState); /* * Button pin always is pulled to the HIGH voltage * And only when button is pressed - Voltage on pin goes to GROUND * So it is need to invert logic when read pins */ if(!Bounce(pinBtn) && flagBtnPress == false){ for(int i = 0; i < sizebtn; i++){ Serial.write(btnMes[i]); } Serial.print("\n"); flagBtnPress = true; if(!flagEnableRead){ curTime = millis(); flagEnableRead = true; } }else if(Bounce(pinBtn)){ flagBtnPress = false; } /* * Read and send Info "Pot - " + var Only after first press on button * Every 'period'ms */ if(millis() - curTime > period && flagEnableRead){ SendData(pinPot, potMes, sizepm); curTime = millis(); } /* FUNCTIONS CALL. Segment 2 */ } /* * Pot - pin with potentiometer * pMes - Array with message before Pot value * sp - size of potentiometer message */ void SendData(int Pot, char* pMes, int sp){ static int varP[2]; varP[0] = analogRead(Pot); varP[1] = varP[0]/256; // 0 - 3 (256 - 1024) varP[0] = varP[0]%256; // 0 - 255 //Send Message for(int i = 0; i < sp; i++){ Serial.write(char(pMes[i])); } //Send 2 bits of data //Serial.write(varP[0]); //Serial.write(varP[1]); Serial.print(analogRead(Pot)); Serial.print("\n"); } /* * Function, which is reads button pin with the bounce */ bool Bounce(int btn){ if(digitalRead(btn) == true){ delay(15); if(digitalRead(btn) == true){ return true; }else{ return false; } }else{ return false; } } /* * If Message from Serial port, which you read will be the same to passLight * So look at the next symbol after Pass Message. If it is symbol 'H' - make LED to light * If it is 'L' - make LED off. */ void ReadSerialForLed(char *passLight_f, int passLength_f, bool* flagLedState_f){ static char sym; static int cntPass = 0; static bool readyGetLed = LOW; while (Serial.available() > 0) { sym = Serial.read(); if(sym == passLight_f[cntPass] && !readyGetLed){ cntPass++; }else if (!readyGetLed){ cntPass = 0; }else if(readyGetLed){ if(sym == 'H'){ *flagLedState_f = HIGH; }else if(sym == 'L'){ *flagLedState_f = LOW; } } if(cntPass == passLength_f){ readyGetLed = HIGH; } } } 

 import processing.serial.*; Serial port; // Create object from Serial class int val; // Data received from the serial port (symbol) int pot; // Data from potentiometer String potMes = "Pot - "; String btnMes = "Button is pressed!"; int cntPM = 0; // Counter Potentiometer Message. // When it equals to length of Pot Mess - get value. int cntBM = 0; int cntBtnPress = 0; int cntMousePress = 0; Star[] stars = new Star[1000]; float speed; int dir = 1; void setup(){ size(800, 800); for(int i = 0; i < stars.length; i++){ stars[i] = new Star(); } frameRate(60); // 60 Frames per second port = new Serial(this, Serial.list()[0], 9600); // Wait for first message from Arduino delay(2000); while (port.available() > 0) { val = port.read(); print(char(val)); } } void draw(){ if (port.available() > 0) { val = port.read(); cntPM = CheckSymbol(potMes, cntPM, char(val), cntPM); cntBM = CheckSymbol(btnMes, cntBM, char(val), cntBM); } DrawRain(pot, 0, 1023); } void DrawRain(int speed_f, int min, int max){ background(0); translate(width/2,height/2); speed = dir*map(speed_f, min, max, 0, 50); for(int i = 0; i < stars.length; i++){ stars[i].go(); stars[i].update(); stars[i].show(); } } int CheckSymbol(String mes, int index, char sym, int ret_val){ if(mes.charAt(index) == sym && ret_val < (mes.length() - 1)){ return (ret_val + 1); }else if( ret_val == (mes.length() - 1) && mes.equals(potMes) ){ if(port.available() > 0){ pot = port.read(); // First 0-255 value } if(port.available() > 0){ pot += 256*port.read(); // Last 2 bits 256 - 1024 } }else if( ret_val == (mes.length() - 1) && mes.equals(btnMes) ){ cntBtnPress++; dir = -dir; } return 0; } void mousePressed() { cntMousePress++; if(cntMousePress % 2 == 1){ port.write("Led - H"); }else{ port.write("Led - L"); } }