changed to globale variable array

ReadRawData/py_fp_image.py

@@ -6,12 +6,12 @@ temps = []
 
 # replace space to new line
 
-with open("fp_data4.txt", "r") as r:
-    with open("fp_data4_new.txt", "w") as w:
+with open("fp_data6.txt", "r") as r:
+    with open("fp_data6_new.txt", "w") as w:
         w.write(r.read().replace(' ' , '\n'))
 
 # Open text file and write to temp list
-f = open('fp_data4_new.txt')
+f = open('fp_data6_new.txt')
 for line in f.readlines():
 
     try:

ReadRawData/src/src.cpp

@@ -20,7 +20,7 @@
 
 DFRobot_ID809 fingerprint;
 uint8_t ID, i, ret;
-
+uint8_t data[25600];
 /*-----Blink on board led -------------- */
 
 void blink_led() {
@@ -30,35 +30,34 @@ void blink_led() {
   delay(500);
 }
 
+/*--------- Send raw data to serial port----*/
+
+void serialPrintFPdata() {
+  for (uint16_t i = 0; i < 25600; i++) {
+    // Serial.print(i);
+    // Serial.print('\t');
+    Serial.print(data[i]);
+    Serial.print(" ");
+    delay(10);
+  }
+  // Serial.println();
+  // Serial.flush();
+}
+
 /*----- Read fingerpritn image data ------*/
 void read_image() {
 
   // Full image of fingerprint
-  uint8_t data[25600] = {0};
+  // uint8_t data[25600] = {0};
 
   /*Set the fingerprint module LED ring to blue breathing lighting effect*/
   fingerprint.ctrlLED(/*LEDMode = */ fingerprint.eBreathing,
                       /*LEDColor = */ fingerprint.eLEDBlue,
                       /*blinkCount = */ 0);
   // Serial.println("Please release your finger");
-  /*Wait for finger to release
-    Return 1 when finger is detected, otherwise return 0
-   */
-  while (!fingerprint.detectFinger());
   // Collect full images
   fingerprint.getFingerImage(data);
   delay(100);
-  for (uint16_t i = 0; i < 25600; i++) {
-    // Serial.print(i);
-    // Serial.print('\t');
-    Serial.print(data[i]);
-    Serial.print(" ");
-    delay(10);
-  }
-  Serial.println();
-  Serial.flush();
-
-  blink_led();
 }
 
 /*---------Arduino setup function------*/
@@ -82,6 +81,13 @@ void setup() {
 
 void loop() {
 
-  read_image();
+  /*Wait for finger to release
+Return 1 when finger is detected, otherwise return 0
+*/
+  while (!fingerprint.detectFinger()) {
+    blink_led();
+  }
 
+  read_image();
+  serialPrintFPdata();
 }