added additional functionalities

examples/fingerprint_simpletest.py

@@ -7,11 +7,12 @@
 led = DigitalInOut(board.D13)
 led.direction = Direction.OUTPUT
 
-uart = busio.UART(board.TX, board.RX, baudrate=57600)
+#uart = busio.UART(board.TX, board.RX, baudrate=57600)
 
 # If using with a computer such as Linux/RaspberryPi, Mac, Windows...
 #import serial
 #uart = serial.Serial("/dev/ttyUSB0", baudrate=57600, timeout=1)
+uart = serial.Serial("/dev/ttyAMA0", baudrate=57600, timeout=1)
 
 finger = adafruit_fingerprint.Adafruit_Fingerprint(uart)
 
@@ -152,10 +153,13 @@ def enroll_finger(location):
 
 def get_num():
     """Use input() to get a valid number from 1 to 127. Retry till success!"""
-    i = 0
-    while (i > 127) or (i < 1):
+    #i = 0
+    i = -1
+    #while (i > 127) or (i < 1):
+    while (i > 999) or (i < 0):
         try:
-            i = int(input("Enter ID # from 1-127: "))
+            #i = int(input("Enter ID # from 1-127: "))
+            i = int(input("Enter ID # from 0-999: "))
         except ValueError:
             pass
     return i
@@ -166,9 +170,14 @@ def get_num():
     if finger.read_templates() != adafruit_fingerprint.OK:
         raise RuntimeError('Failed to read templates')
     print("Fingerprint templates:", finger.templates)
+    if finger.count_templates() != adafruit_fingerprint.OK:
+        raise RuntimeError('Failed to read templates')
+    print("Number of templates: ", finger.template_count)
+    print("e) enroll print")
     print("e) enroll print")
     print("f) find print")
     print("d) delete print")
+    print("r) reset library")
     print("----------------")
     c = input("> ")
 
@@ -184,3 +193,9 @@ def get_num():
             print("Deleted!")
         else:
             print("Failed to delete")
+    if c == 'r':
+        finger._send_packet([adafruit_fingerprint._EMPTY])
+        if finger._get_packet(12)[0] == adafruit_fingerprint.OK:
+            print("Library empty!")
+        else:
+            print("Failed to empty library")