diff --git a/platform/micaz/dev/adc.c b/platform/micaz/dev/adc.c
new file mode 100755
index 000000000..62986f795
--- /dev/null
+++ b/platform/micaz/dev/adc.c
@@ -0,0 +1,76 @@
+/*
+ * Copyright (c) 2010, University of Colombo School of Computing
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * This file is part of the Contiki operating system.
+ *
+ */
+
+#include <avr/io.h>
+#include "dev/adc.h"
+
+/*---------------------------------------------------------------------------*/
+void 
+adc_init()
+{
+  ADMUX = 0;
+  /* AVCC with external capacitor at AREF pin. */
+  ADMUX |= _BV(REFS0);
+  /* Disable ADC interrupts. */   
+  ADCSRA &= ~( _BV(ADIE) | _BV(ADIF) );
+  /* Set ADC prescaler to 64 and clear interrupt flag. */
+  ADCSRA |= _BV(ADPS2) | _BV(ADPS1) | _BV(ADIE);
+  
+}
+/*---------------------------------------------------------------------------*/
+/* Poll based approach. The interrupt based adc is currently not used.
+   The ADC result is right adjusted. First 8 bits(from left) are in ADCL and
+   other two bits are in ADCH. See Atmega128 datasheet page 228. */
+uint16_t 
+get_adc(int channel)
+{
+  uint16_t reading;
+
+  ADMUX |= (channel & 0x1F);
+
+  /* Disable ADC interrupts. */
+  ADCSRA &= ~_BV(ADIE);
+  /* Clear previous interrupts. */
+  ADCSRA |= _BV(ADIF);
+  /* Enable ADC and start conversion. */
+  ADCSRA |= _BV(ADEN) | _BV(ADSC);
+  /* Wait until conversion is completed. */
+  while ( ADCSRA & _BV(ADSC) );
+  /* Get first 8 bits.  */
+  reading = ADCL;
+  /* Get last two bits. */
+  reading |= (ADCH & 3) << 8;
+  /* Disable ADC. */
+  ADCSRA &= ~_BV(ADEN);
+  return reading;
+}
+/*---------------------------------------------------------------------------*/
diff --git a/platform/micaz/dev/adc.h b/platform/micaz/dev/adc.h
new file mode 100755
index 000000000..473290b86
--- /dev/null
+++ b/platform/micaz/dev/adc.h
@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) 2010, University of Colombo School of Computing
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * This file is part of the Contiki operating system.
+ *
+ */
+
+#ifndef __ADC_H__
+#define __ADC_H__
+
+void adc_init();
+
+uint16_t get_adc(int channel);
+
+#endif /* __ADC_H__ */