c12880ma code

arduino_c12880ma_example/arduino_c12880ma_example.ino

@@ -0,0 +1,129 @@
+/*
+ * Macro Definitions
+ */
+#define SPEC_TRG         A0
+#define SPEC_ST          A1
+#define SPEC_CLK         A2
+#define SPEC_VIDEO       A3
+#define WHITE_LED        A4
+#define LASER_404        A5
+
+#define SPEC_CHANNELS    288 // New Spec Channel
+uint16_t data[SPEC_CHANNELS];
+
+void setup(){
+
+  //Set desired pins to OUTPUT
+  pinMode(SPEC_CLK, OUTPUT);
+  pinMode(SPEC_ST, OUTPUT);
+  pinMode(LASER_404, OUTPUT);
+  pinMode(WHITE_LED, OUTPUT);
+
+  digitalWrite(SPEC_CLK, HIGH); // Set SPEC_CLK High
+  digitalWrite(SPEC_ST, LOW); // Set SPEC_ST Low
+
+  Serial.begin(115200); // Baud Rate set to 115200
+
+}
+
+/*
+ * This functions reads spectrometer data from SPEC_VIDEO
+ * Look at the Timing Chart in the Datasheet for more info
+ */
+void readSpectrometer(){
+
+  int delayTime = 1; // delay time
+
+  // Start clock cycle and set start pulse to signal start
+  digitalWrite(SPEC_CLK, LOW);
+  delayMicroseconds(delayTime);
+  digitalWrite(SPEC_CLK, HIGH);
+  delayMicroseconds(delayTime);
+  digitalWrite(SPEC_CLK, LOW);
+  digitalWrite(SPEC_ST, HIGH);
+  delayMicroseconds(delayTime);
+
+  //Sample for a period of time
+  for(int i = 0; i < 15; i++){
+
+      digitalWrite(SPEC_CLK, HIGH);
+      delayMicroseconds(delayTime);
+      digitalWrite(SPEC_CLK, LOW);
+      delayMicroseconds(delayTime); 
+
+  }
+
+  //Set SPEC_ST to low
+  digitalWrite(SPEC_ST, LOW);
+
+  //Sample for a period of time
+  for(int i = 0; i < 85; i++){
+
+      digitalWrite(SPEC_CLK, HIGH);
+      delayMicroseconds(delayTime);
+      digitalWrite(SPEC_CLK, LOW);
+      delayMicroseconds(delayTime); 
+
+  }
+
+  //One more clock pulse before the actual read
+  digitalWrite(SPEC_CLK, HIGH);
+  delayMicroseconds(delayTime);
+  digitalWrite(SPEC_CLK, LOW);
+  delayMicroseconds(delayTime);
+
+  //Read from SPEC_VIDEO
+  for(int i = 0; i < SPEC_CHANNELS; i++){
+
+      data[i] = analogRead(SPEC_VIDEO);
+
+      digitalWrite(SPEC_CLK, HIGH);
+      delayMicroseconds(delayTime);
+      digitalWrite(SPEC_CLK, LOW);
+      delayMicroseconds(delayTime);
+
+  }
+
+  //Set SPEC_ST to high
+  digitalWrite(SPEC_ST, HIGH);
+
+  //Sample for a small amount of time
+  for(int i = 0; i < 7; i++){
+
+      digitalWrite(SPEC_CLK, HIGH);
+      delayMicroseconds(delayTime);
+      digitalWrite(SPEC_CLK, LOW);
+      delayMicroseconds(delayTime);
+
+  }
+
+  digitalWrite(SPEC_CLK, HIGH);
+  delayMicroseconds(delayTime);
+
+}
+
+/*
+ * The function below prints out data to the terminal or 
+ * processing plot
+ */
+void printData(){
+
+  for (int i = 0; i < SPEC_CHANNELS; i++){
+
+    Serial.print(data[i]);
+    Serial.print(',');
+
+  }
+
+  Serial.print("\n");
+}
+
+void loop(){
+
+  readSpectrometer();
+  printData();
+  delay(10);  
+
+}
+
+

processing_plot/processing_plot_c12880ma.pde

@@ -0,0 +1,110 @@
+import processing.serial.*;
+
+Serial myPort; 
+String val;    
+int[] data; 
+double[] summed;
+int draw_sum=0;
+
+double find_max(double[] input)
+{
+  double max = 0;
+  for (int i = 0; i < input.length; i++) 
+  {
+    if (input[i] > max)
+    {
+      max = input[i];
+    }            
+  }
+  return max;
+}
+
+void plotdata()
+{
+
+  double summed_max = (find_max(summed))/875;
+
+  background(0); 
+
+  if (draw_sum !=0)
+  {
+    for (int i=0; i<summed.length-1; i++)
+    {
+      line(i, 0, i, 875-(int)(summed[i]/summed_max));
+    }
+  } else
+  {
+
+    for (int i=0; i<data.length-1; i++)
+    {
+      line(i, 0, i, 875-data[i]);
+    }
+  }
+  stroke(255);
+}
+
+
+void setup() 
+{
+  println(Serial.list());
+  String portName = Serial.list()[0]; //This is the index into the serial list, if you only have one serial device the index is 0
+  myPort = new Serial(this, portName, 115200);
+
+  summed = new double[288];
+
+  for (int i = 0; i < 288; i++) 
+  {
+    summed[i] = 0;
+  }
+
+  size(288, 750);
+}
+
+void draw()
+{
+  if ( myPort.available() > 0) 
+  {  
+    val = myPort.readStringUntil('\n');         // read it and store it in val
+    if (val != null)
+    {
+      data = int(split(val, ',')); 
+
+      for (int i = 0; i < data.length; i++) 
+      {
+        if (i<summed.length)
+        {
+          summed[i] +=  data[i];
+        }
+        //print(data[i]);
+        // print(' ');
+      }
+      //  println( ' ');
+      plotdata();
+    }
+  }
+}
+
+void keyPressed() {
+
+  if (key == 'c' ) 
+  {
+    for (int i = 0; i < summed.length; i++) 
+    {
+      summed[i] = 0;
+    }
+  } 
+  else if (key == 't' ) 
+  {
+    if(draw_sum==1)
+    {
+      draw_sum = 0;
+    }
+    else
+    {
+      draw_sum = 1;
+    }
+  } 
+  else 
+  {
+  }
+}