科學與藝術的偉大, 在於對人類無私的奉獻. 不知道是誰說的?

Processing 學習 7-segment 字型

參考網站
https://senzor.robotika.sk/sensorwiki/index.php/Processing_7-segment_display

note
1.
下載字型檔
Segment7Standard.otf

2.
轉成TTF檔
參考網站
http://www.freefontconverter.com/

3.
win7 新增字型
參考網站
https://blog.xuite.net/yh96301/blog/29389981-Windows+7+%E5%AE%89%E8%A3%9D%E5%AD

%97%E5%9E%8B

4.
/* Arduino 範例:
 *   讀取接在 pin 0 上的可變電阻，並將讀值列印到 Serial Port
 */
int potPin = 0; // 可變電阻接在 pin 0 上
int adcValue = 0;
void setup() {
  // 開啟 Serial port, 通訊速率為 9600 bps
  Serial.begin(9600);
}
void loop() {
  adcValue = 0;                           // Filter - average from 16 values 
  for (int i = 1; i<=4; i++)
    adcValue = adcValue + analogRead(0);
  adcValue = adcValue/4;  
    char tempString[10];                     // Used for sprintf
  
  // 讀取可變電阻
  //int sensorValue = analogRead(potPin);
  // 將讀值列印到 Serial Port, 以位元組(Byte)的格式寫出
  // 讀值除以 4, 把 0-1023 的數值按比例縮放為 0-255 之間的數值
  //Serial.write(sensorValue/4);
sprintf(tempString, "%4d",adcValue);     // Convert into a string that is right 

adjusted  
Serial.println(tempString);           // Works too, but we don't need trailing 

spaces ' ' in the front  
  delay(100);
}

5.
import processing.serial.*;

 int adcValue = 0;        // value received from Serial 
 // String Unit="mA";
 // String Unit="kΩ";
 // String Unit="°C";     // We can use Unicode chars directly
 String Unit="\u00B0C";   // Unicode codes may be entered as well
 
 Serial myPort;
 PFont Segment, Units; 

 void setup() {
                          // Setup the display window 
  size(480, 180);         // Size of the window
  Segment = createFont("Segment7", 150);  // Assign fonts and size 
  Units = createFont("Arial", 40);
  textFont(Segment);
  textAlign(RIGHT);        // Text align 
  fill(250,250,0);         // Font color is yellow = red + green

  println(Serial.list());    // List all the available serial ports
  // Then open the port  you're using, my is the first, i.e. '0'
   myPort = new Serial(this, Serial.list()[2], 9600);
 // don't generate a serialEvent() unless you get a newline character:
   myPort.bufferUntil('\n');
 }

void draw()
{                      // Let's start to display
  background(0,0,0);   // set the background color black

  textFont(Segment);
  text(adcValue, 400, 150);
  
  textFont(Units);
  text(Unit,465,65);
}

void serialEvent(Serial myPort) 
{
 String inString = myPort.readStringUntil('\n');    // get the ASCII string:
 if (inString != null) 
    {
     inString = trim(inString);     // trim off any whitespace
     adcValue = int(inString);      // convert into an integer
     adcValue =int(map(adcValue, 0, 1023, 0, 1023));  // possible range 

adjusting
    }
 }