adc works

include/adc.c

@@ -5,7 +5,7 @@
 #include <util/delay.h>
 
 void adc_init() {
-	//DDRA=0x0; // does not exist but is default?
+	DDRC=0x0; // does not exist but is default?
 	ADCSRA = (1<<ADEN)|(1<<ADPS1)|(1<<ADPS2);
 	ADMUX = (1<<REFS0);
 }

print/main.c

@@ -14,16 +14,17 @@
 int main (void)
 {
     uart_init();
+    adc_init();
     sei();
 
     char buf[10];
-    int sensor[2];
+    uint16_t sensor[2] = { 0, 1 };
 
     while (1)
     {
         // lets say we read some value from a sensor
-        sensor[0] = adc_read(0);
-        sensor[1] = adc_read(1);
+         sensor[0] = adc_read(0);
+         sensor[1] = adc_read(1);
         // we want to print this, so we store the ascii repr in our buffer
         uart_printi("sensor 0: ", sensor[0]);
         uart_printi("sensor 1: ", sensor[1]);