fixed some issue with SoftI2C not working (missing delay)

added code for a waveshare eInk
refactored some old code to match with the new SoftI2C

ext/rf/SX1276.h

@@ -169,6 +169,9 @@ public:
 		// set output power to 17 dBm
 		setTxPower(17);
 
+		// we use explicit header mode for RX/TX
+		explicitHeaderMode();
+
 		// put in standby mode
 		idle();
 		
@@ -351,9 +354,9 @@ public:
 		if (isTransmitting())		{return 0;}
 
 		// put in standby mode
-		idle();
+		//idle();
 
-		explicitHeaderMode();
+		//explicitHeaderMode();
 		
 		// reset FIFO address and payload length
 		writeRegister(REG_FIFO_ADDR_PTR,	0);
@@ -412,7 +415,7 @@ public:
 		
 		uint8_t irqFlags = readRegister(REG_IRQ_FLAGS);
 		
-		explicitHeaderMode();
+		//explicitHeaderMode();
 	
 		// clear all current IRQ flags
 		writeRegister(REG_IRQ_FLAGS, irqFlags);