diff --git a/platform/osd-merkur/dev/wiring_analog.c b/platform/osd-merkur/dev/wiring_analog.c
index 80478c03f..6c3dcc484 100644
--- a/platform/osd-merkur/dev/wiring_analog.c
+++ b/platform/osd-merkur/dev/wiring_analog.c
@@ -26,6 +26,7 @@
 
 #include "wiring_private.h"
 #include "pins_arduino.h"
+#include "adc.h"
 
 uint8_t analog_reference = DEFAULT;
 
@@ -39,59 +40,7 @@ void analogReference(uint8_t mode)
 
 int analogRead(uint8_t pin)
 {
-	uint8_t low, high;
-
-#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
-	if (pin >= 54) pin -= 54; // allow for channel or pin numbers
-#elif defined(__AVR_ATmega32U4__)
-	if (pin >= 18) pin -= 18; // allow for channel or pin numbers
-#elif defined(__AVR_ATmega1284P__) || defined(__AVR_ATmega644P__)
-	if (pin >= 24) pin -= 24; // allow for channel or pin numbers
-#elif defined(__AVR_ATmega128RFA1__)
-	if (pin >= 26) pin -= 26; // allow for channel or pin numbers
-#else
-	if (pin >= 14) pin -= 14; // allow for channel or pin numbers
-#endif
-	
-#if defined(__AVR_ATmega32U4__)
-	pin = analogPinToChannel(pin);
-	ADCSRB = (ADCSRB & ~(1 << MUX5)) | (((pin >> 3) & 0x01) << MUX5);
-#elif defined(ADCSRB) && defined(MUX5)
-	// the MUX5 bit of ADCSRB selects whether we're reading from channels
-	// 0 to 7 (MUX5 low) or 8 to 15 (MUX5 high).
-	ADCSRB = (ADCSRB & ~(1 << MUX5)) | (((pin >> 3) & 0x01) << MUX5);
-#endif
-	// set the analog reference (high two bits of ADMUX) and select the
-	// channel (low 4 bits).  this also sets ADLAR (left-adjust result)
-	// to 0 (the default).
-#if defined(ADMUX)
-	ADMUX = (analog_reference << 6) | (pin & 0x07);
-#endif
-
-	// without a delay, we seem to read from the wrong channel
-	//delay(1);
-
-#if defined(ADCSRA) && defined(ADCL)
-	// start the conversion
-	sbi(ADCSRA, ADSC);
-
-	// ADSC is cleared when the conversion finishes
-	while (bit_is_set(ADCSRA, ADSC));
-
-	// we have to read ADCL first; doing so locks both ADCL
-	// and ADCH until ADCH is read.  reading ADCL second would
-	// cause the results of each conversion to be discarded,
-	// as ADCL and ADCH would be locked when it completed.
-	low  = ADCL;
-	high = ADCH;
-#else
-	// we dont have an ADC, return 0
-	low  = 0;
-	high = 0;
-#endif
-
-	// combine the two bytes
-	return (high << 8) | low;
+	return readADC(pin);
 }
 
 // Right now, PWM output only works on the pins with