public void InitSerial(float portValue) {
// initialize the serial port selected in the listBox
println(
"initializing serial "
+ PApplet.parseInt(portValue)
+ " in serial.list()"); // for debugging
// grab the name of the serial port
String portPos = Serial.list()[PApplet.parseInt(portValue)];
// initialize the port
serial = new Serial(this, portPos, 115200);
// read bytes into a buffer until you get a linefeed (ASCII 10):
serial.bufferUntil('\n');
println("done init serial");
// initialized com port flag
init_com = 1;
}
public void processSerialData() {
byte[] inBuf = new byte[20];
switch (serial.read()) {
case 'A':
// wait for all data arrived
while (serial.available() < 16) {}
// read all data
serial.readBytes(inBuf);
Acc_RAW = (inBuf[1] << 8) + (inBuf[0] & 0xFF);
Gyro_RAW = (inBuf[3] << 8) + (inBuf[2] & 0xFF);
// int intbit = 0;
// intbit = (inBuf[7] << 24) | ((inBuf[6] & 0xFF) << 16) | ((inBuf[5] & 0xFF) << 8) |
// (inBuf[4] & 0xFF);
// Angle = Float.intBitsToFloat(intbit);
int AngleInt = (inBuf[5] << 8) + (inBuf[4] & 0xFF);
Angle = PApplet.parseFloat(AngleInt) / 10;
Acc_Angle = (inBuf[7] << 8) + (inBuf[6] & 0xFF);
Gyro_Rate = (inBuf[9] << 8) + (inBuf[8] & 0xff);
Drive = (inBuf[11] << 8) + (inBuf[10] & 0xFF);
statusFlag = (inBuf[13] << 8) + (inBuf[12] & 0xFF);
int BatLevelInt = (inBuf[15] << 8) + (inBuf[14] & 0xFF);
Steer = (inBuf[17] << 8) + (inBuf[16] & 0xFF);
BatLevel = PApplet.parseFloat(BatLevelInt) / 10;
println(
"Acc="
+ Acc_RAW
+ " Gyro="
+ Gyro_RAW
+ " Angle="
+ Angle
+ " Acc_Angle="
+ Acc_Angle
+ " Gyro_Rate="
+ Gyro_Rate
+ " Drive="
+ Drive
+ " Status="
+ statusFlag);
break;
case 'E':
// wait for all data arrived
while (serial.available() < 6) {}
// read all data
serial.readBytes(inBuf);
int P = (inBuf[1] << 8) + (inBuf[0] & 0xFF);
int I = (inBuf[3] << 8) + (inBuf[2] & 0xFF);
int D = (inBuf[5] << 8) + (inBuf[4] & 0xFF);
conf_KP.setValue(P);
conf_KI.setValue(I);
conf_KD.setValue(D);
println("P=" + P + " I=" + I + " D=" + D);
break;
}
serial.clear();
}
public void InitComDropdown() {
// Initialize portCommList
int posX = 20;
int posY = 70;
PortsList = controlP5.addDropdownList("portComList", posX, posY, 100, 84);
// Set the background color of the list (you wont see this though).
PortsList.setBackgroundColor(color(200));
// Set the height of each item when the list is opened.
PortsList.setItemHeight(20);
// Set the height of the bar itself.
PortsList.setBarHeight(15);
// Set the lable of the bar when nothing is selected.
PortsList.captionLabel().set("Select COM port");
// Set the top margin of the lable.
PortsList.captionLabel().style().marginTop = 3;
// Set the left margin of the lable.
PortsList.captionLabel().style().marginLeft = 3;
// Set the top margin of the value selected.
PortsList.valueLabel().style().marginTop = 3;
// Store the Serial ports in the string comList (char array).
comList = serial.list();
// We need to know how many ports there are, to know how many items to add to the list, so we
// will convert it to a String object (part of a class).
String comlist = join(comList, ",");
// We also need how many characters there is in a single port name, we\u00b4ll store the chars
// here for counting later.
String COMlist = comList[0];
// Here we count the length of each port name.
int size2 = COMlist.length();
// Now we can count how many ports there are, well that is count how many chars there are, so we
// will divide by the amount of chars per port name.
int size1 = comlist.length() / size2;
// Now well add the ports to the list, we use a for loop for that. How many items is determined
// by the value of size1.
for (int i = 0; i < size1; i++) {
// This is the line doing the actual adding of items, we use the current loop we are in to
// determin what place in the char array to access and what item number to add it as.
PortsList.addItem(comList[i], i);
}
// Set the color of the background of the items and the bar.
PortsList.setColorBackground(color(60));
// Set the color of the item your mouse is hovering over.
PortsList.setColorActive(color(255, 128));
}
public void draw() {
background(0);
// Strings composition
textFont(createFont("Arial bold", 24));
fill(c_red);
stroke(255);
text("OpenWheels GUI V1.0", 20, 30);
textSize(16);
// textAlign(CENTER);
fill(c_azure);
text("Acc_RAW: " + Acc_RAW, 150, 65);
AccSlider.setValue(Acc_RAW);
text("Gyro_RAW: " + Gyro_RAW, 150, 90);
GyroSlider.setValue(Gyro_RAW);
text("Acc_Angle: " + Acc_Angle + "\u00b0", 150, 115);
text("Gyro_Rate: " + Gyro_Rate + "\u00b0/sec", 150, 140);
text("Drive: " + Drive, 150, 165);
text("Steer: " + Steer, 150, 190);
text("BatLevel: " + nf(BatLevel, 1, 1) + "V", 150, 215);
text("Status: " + statusFlag, 150, 240);
graphGauge();
graphGrid();
// call the function that plot the angular of acc, with few screen settings
graphRoll(PApplet.parseFloat(Acc_Angle), VideoBuffer2, c_red); // xPos, YPos, YSpan
// call the function that plot the estimate angular, with few screen settings
graphRoll(Angle, VideoBuffer1, c_yellow); // xPos, YPos, YSpan
// call arduino for data every timePolling [msec]
int timePolling = 50; // 50msec=20Hz
time1 = millis();
if (init_com == 1) {
while (serial.available() > 0) processSerialData();
if ((time1 - time2) > timePolling) {
if (requestPID == true) {
serial.write('E');
requestPID = false;
} else if (writePID == true) {
int P = PApplet.parseInt(conf_KP.value());
int I = PApplet.parseInt(conf_KI.value());
int D = PApplet.parseInt(conf_KD.value());
char data[] = {0, 0, 0, 0, 0};
data[0] = 'W';
data[1] = PApplet.parseChar(P);
data[2] = PApplet.parseChar(I);
data[3] = PApplet.parseChar(D);
data[4] = ' ';
String str = new String(data);
serial.write(str);
println(str);
// println(" P=" + P + " I=" + I + " D=" + D);
writePID = false;
}
// else if (RUN==true ) {serial.write('A');}
else {
serial.write('A');
}
time2 = time1;
}
}
}
public void SAVE_PID(int theValue) {
// save PID parameter on Arduino EEPROM
if (init_com == 0) return;
serial.write('S');
// println("Save PID");
}
public void SET_ZERO(int theValue) {
// set zero acc e gyro
if (init_com == 0) return;
serial.write('Z');
println("Zet Zero");
}
