Fix compiler warnings about PROGMEM use

libraries/HeatpumpIR/CarrierHeatpumpIR.cpp

@@ -145,7 +145,7 @@ void CarrierHeatpumpIR::sendCarrier(IRSender& IR, byte operatingMode, byte fanSp
   IR.space(CARRIER_AIRCON1_HDR_SPACE);
 
   // Payload
-  for (int i=0; i<sizeof(sendBuffer); i++) {
+  for (size_t i=0; i<sizeof(sendBuffer); i++) {
     IR.sendIRByte(sendBuffer[i], CARRIER_AIRCON1_BIT_MARK, CARRIER_AIRCON1_ZERO_SPACE, CARRIER_AIRCON1_ONE_SPACE);
   }
 
@@ -157,7 +157,7 @@ void CarrierHeatpumpIR::sendCarrier(IRSender& IR, byte operatingMode, byte fanSp
   IR.space(CARRIER_AIRCON1_HDR_SPACE);
 
   // Payload again
-  for (int i=0; i<sizeof(sendBuffer); i++) {
+  for (size_t i=0; i<sizeof(sendBuffer); i++) {
     IR.sendIRByte(sendBuffer[i], CARRIER_AIRCON1_BIT_MARK, CARRIER_AIRCON1_ZERO_SPACE, CARRIER_AIRCON1_ONE_SPACE);
   }
 

libraries/HeatpumpIR/HeatpumpIR.h

@@ -57,8 +57,8 @@ class HeatpumpIR
 {
   protected:
     HeatpumpIR(); // Cannot create generic heatpump instances
-    const char PROGMEM* _model;
-	const char PROGMEM* _info;
+    const char * _model;
+    const char * _info;
 
   public:
     virtual void send(IRSender& IR, byte powerModeCmd, byte operatingModeCmd, byte fanSpeedCmd, byte temperatureCmd, byte swingVCmd, byte swingHCmd);

libraries/HeatpumpIR/MitsubishiHeatpumpIR.cpp

@@ -197,7 +197,7 @@ void MitsubishiHeatpumpIR::sendMitsubishi(IRSender& IR, byte powerMode, byte ope
     IR.space(MITSUBISHI_AIRCON1_HDR_SPACE);
 
     // Data
-    for (int i=0; i<sizeof(MitsubishiTemplate); i++) {
+    for (unsigned int i=0; i<sizeof(MitsubishiTemplate); i++) {
       IR.sendIRByte(MitsubishiTemplate[i], MITSUBISHI_AIRCON1_BIT_MARK, MITSUBISHI_AIRCON1_ZERO_SPACE, MITSUBISHI_AIRCON1_ONE_SPACE);
     }