Add a 'lock picking' mechanic. Add some power saving by shutting down…

… inactive WiFi and reducing CPU speed.

examples/PINAndRFID/PINAndRFID.ino

@@ -3,7 +3,7 @@
  * 
  */
 
-//#define DEBUG_ENABLED
+#define DEBUG_ENABLED
 
 #include <LarpHackableRfidLock.h>
 #ifdef DEBUG_ENABLED
@@ -29,7 +29,7 @@ void setup() {
         SERIAL_DEBUG_PORT.begin(115200);
       #endif
     #endif
-    if(usbConnected())
+    //if(usbConnected())
     {
       Lock.debug(SERIAL_DEBUG_PORT);
     }

examples/PINbuttonAndRFID/PINbuttonAndRFID.ino

@@ -0,0 +1,77 @@
+/*
+ * Example sketch for the lock prop, using Tap Code, PIN and/or RFID to control the lock
+ * 
+ */
+
+#define DEBUG_ENABLED
+
+#include <LarpHackableRfidLock.h>
+#ifdef DEBUG_ENABLED
+  #if ARDUINO_USB_CDC_ON_BOOT == 1
+      #define SERIAL_DEBUG_PORT Serial
+  #else
+      #define SERIAL_DEBUG_PORT USBSerial
+  #endif
+#endif
+
+#ifdef DEBUG_ENABLED
+  uint32_t lastStats = 0;
+#endif
+
+void setup() {
+  #ifdef DEBUG_ENABLED
+    #if defined(ARDUINO_ESP8266_WEMOS_D1MINI)
+      SERIAL_DEBUG_PORT.begin(115200, SERIAL_8N1, SERIAL_TX_ONLY); //Note SERIAL_TX_ONLY allows use of RX for a button
+    #elif defined(ARDUINO_ESP32C3_DEV)
+      #if ARDUINO_USB_CDC_ON_BOOT == 1
+        SERIAL_DEBUG_PORT.begin();
+      #else
+        SERIAL_DEBUG_PORT.begin(115200);
+      #endif
+    #endif
+    //if(usbConnected())
+    {
+      Lock.debug(SERIAL_DEBUG_PORT);
+    }
+  #endif
+  Lock.enableButton2(); //Enable button 2 on default pin, which will be used to start 'lock picking'
+  Lock.enableRedLed();  //Enable the red LED on default pin
+  Lock.enableGreenLed();  //Enable the green LED on default pin
+  #ifndef DEBUG_ENABLED
+    Lock.enableBuzzer();  //Enable the buzzer on the default pin
+  #else
+    /*
+    if(usbConnected() == false)
+    {
+      Lock.enableBuzzer();  //Enable the buzzer on the default pin
+    }
+    */
+  #endif
+  Lock.enableMatrixKeypad();  //Enable the matrix keypad on default pins
+  Lock.enableRFID();  //Enable RFID reader authorisation, CS on default pin, using default card sector
+  Lock.enableLockPicking(Lock.button2()); //Enable fast PIN entry if you push the 'lock picking' button
+  Lock.begin(); //Start the lock with a default access ID
+}
+
+void loop() {
+  Lock.housekeeping();  //This is all you need for basic functionality and interactive behaviour baked into the library
+  #ifdef DEBUG_ENABLED
+  /*
+    if(millis() - lastStats > 5000)
+    {
+      lastStats = millis();
+      SERIAL_DEBUG_PORT.print(F("Uptime: "));
+      SERIAL_DEBUG_PORT.print(float(millis())/60000.0);
+      SERIAL_DEBUG_PORT.println(F(" minutes"));
+    }
+  */
+  #endif
+}
+
+bool usbConnected()
+{
+  //uint32_t DR_REG_USB_SERIAL_JTAG_BASE = 0x60043000;  //see https://github.com/search?q=DR_REG_USB_SERIAL_JTAG_BASE&type=code
+  uint32_t USB_SERIAL_JTAG_FRAM_NUM_REG = (DR_REG_USB_SERIAL_JTAG_BASE + 0x24);
+  uint32_t *aa = (uint32_t*)USB_SERIAL_JTAG_FRAM_NUM_REG;
+  return (*aa) != 0;
+}