src/app/app.ino

@@ -55,7 +55,7 @@ void setup() {
   Serial.begin(115200, SERIAL_8N1, SERIAL_TX_ONLY);
   //We set the RXD0 as a GPIO
   pinMode(D9, FUNCTION_3);
-  pinMode(D9, INPUT_PULLUP);
+  pinMode(D9, INPUT);
   attachInterruptArg(D9,&(NRFIRQsHandler), (void *)&IRQFlag, FALLING);
   //We set the WiFi part up :
   gotIp = WiFi.onStationModeGotIP(&(gotIpFunc));

src/libs/PCF8574/PCF8574.cpp

@@ -104,10 +104,3 @@ void PCF8574::getPinModeAll(boolean array[8])
 	array[6] = (_pddr & P6) == 0 ? INPUT : OUTPUT;
 	array[7] = (_pddr & P7) == 0 ? INPUT : OUTPUT;
 }
-
-void PCF8574::resetIRQ()
-{
-	//We request 1 byte in order to reset the IRQ
-	_twc.requestFrom((uint8_t)_address,(uint8_t)1,(uint8_t)true);
-	 while(_twc.available())_twc.read();
-}

src/libs/PCF8574/PCF8574.h

@@ -23,8 +23,6 @@ class PCF8574
 	boolean getPinMode(Pin pin);
 	void getPinModeAll(boolean array[8]);
 	void togglePin(Pin pin);
-	//Reset the IRQ by doing a dummy read
-	void resetIRQ();
   private:
     TwoWire &_twc;
     uint8_t _address;

src/libs/PCF8574/keywords.txt

@@ -16,7 +16,6 @@ digitalReadAll	KEYWORD2
 getPinMode	KEYWORD2
 getPinModeAll	KEYWORD2
 togglePin	KEYWORD2
-resetIRQ	KEYWORD2
 
 #######################################
 # Constants (LITERAL1)