103 lines
2.3 KiB
Plaintext
103 lines
2.3 KiB
Plaintext
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import processing.serial.*;
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Serial serialport;
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Visualization visVoltage;
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Visualization visCurrent;
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float voltage = 50;
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float current = 0.0;
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long lastReceive=0; //last time serial received
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long lastDelay=0;
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void setup() {
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size(640, 360);
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printArray(Serial.list());
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serialport = new Serial(this, Serial.list()[2], 9600);
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//vis = new BarV(150,150,10,100,0,100);
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//vis = new BarH(150,150,100,10,0,100);
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visVoltage = new Tacho(150,150,100,0,100);
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//vis = new Direction(150,150,100,0,100,0,1);
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visVoltage.setShowMinMax(true);
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visVoltage.setTitle("Voltage [V]");
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visCurrent= new Tacho(150+250,150,100,0,100);
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visCurrent.setShowMinMax(true);
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visCurrent.setTitle("Current [A]");
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}
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void draw() {
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receive();
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background(255);
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visVoltage.setValue(voltage);
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visCurrent.setValue(current);
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visVoltage.drawVis();
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visCurrent.drawVis();
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fill(color(0,0,0));
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textSize(12);
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long _delay=lastDelay;
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if (millis()-lastReceive>1000){ //show counting up if update too long ago
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_delay=millis()-lastReceive;
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}
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text("Delay="+(_delay), 5,12);
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}
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public void receive()
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{
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byte[] inBuffer = new byte[8];
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while(serialport.available()>0) {
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//inBuffer = serialport.readBytes();
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serialport.readBytes(inBuffer);
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//if (inBuffer != null) {
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voltage = extract_float(inBuffer,0);
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current = extract_float(inBuffer,4);
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//}
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}
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if (received){
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lastDelay=millis()-lastReceive;
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lastReceive=millis();
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}
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}
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public int extract_uint16_t(byte array[], int startbyte) {
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return ((int)array[startbyte] & 0xff) | ((int)array[startbyte+1] & 0xff)<<8;
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}
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public int extract_int16_t(byte array[], int startbyte) {
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if ( ((int)array[startbyte+1] & 0x80) == 0x00 ) { //2's complement, not negative
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return ( ((int)array[startbyte] & 0xff) | ((int)array[startbyte+1] & 0x7f)<<8 );
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}else{ //value is negative
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return -32768 + ( ((int)array[startbyte] & 0xff) | ((int)array[startbyte+1] & 0x7f)<<8 );
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}
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}
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public float extract_float(byte array[], int startbyte) {
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int MASK = 0xff;
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int bits = 0;
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int i = startbyte+3; //+3 because goes backwards and has 4 bytes
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for (int shifter = 3; shifter >= 0; shifter--) {
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bits |= ((int) array[i] & MASK) << (shifter * 8);
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i--;
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}
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return Float.intBitsToFloat(bits);
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}
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