diff --git a/ard/example/analog_input.c b/ard/example/analog_input.c
new file mode 100644
index 0000000..56a5bd3
--- /dev/null
+++ b/ard/example/analog_input.c
@@ -0,0 +1,38 @@
+#include <util/delay.h>
+#include <stdio.h>
+#include "ard/serial.h"
+#include "ard/pins.h"
+#include "ard/util.h"
+
+void prepare();
+void loop();
+
+int main(){
+	prepare();
+
+	while(1){
+		loop();
+	}
+}
+
+void prepare(){
+	// enable global interrupts and serial port
+	pins_init();
+	serial_init(9600);
+
+	pin_mode(A1, INPUT);
+	pin_mode(A2, INPUT);
+}
+
+unsigned char pwm = 0;
+
+void loop(){
+	int analog1 = analog_read(A1);
+	int analog2 = analog_read(A2);
+	
+	char out[15];
+	sprintf(out, "%d %d", analog1, analog2);
+	serial_write(out, 15);
+
+	_delay_ms(25);
+}
diff --git a/ard/example/analog_output.c b/ard/example/analog_output.c
new file mode 100644
index 0000000..9c7b9e7
--- /dev/null
+++ b/ard/example/analog_output.c
@@ -0,0 +1,43 @@
+#include <stdio.h>
+#include "ard/serial.h"
+#include "ard/pins.h"
+#include "ard/util.h"
+
+void prepare();
+void loop();
+
+int main(){
+	prepare();
+
+	while(1){
+		loop();
+	}
+}
+
+void prepare(){
+	// enable global interrupts and serial port
+	pins_init();
+	serial_init(9600);
+
+	pin_mode(A1, INPUT);
+	pin_mode(6, OUTPUT);
+	pin_mode(11, OUTPUT);
+}
+
+unsigned char pwm = 0;
+
+void loop(){
+	int analog = map(analog_read(A1), 0, 1023, 0, 255);
+	analog_write(11, analog);
+
+	if(analog < 128){
+		digital_write(6, HIGH);
+	}
+	else{
+		digital_write(6, LOW);
+	}
+
+	char out[15];
+	sprintf(out, "%d", analog);
+	serial_write(out, 15);
+}
diff --git a/ard/example/digital.c b/ard/example/digital.c
new file mode 100644
index 0000000..f3463ad
--- /dev/null
+++ b/ard/example/digital.c
@@ -0,0 +1,39 @@
+#include <util/delay.h>
+#include <stdio.h>
+#include "ard/serial.h"
+#include "ard/pins.h"
+#include "ard/util.h"
+
+void prepare();
+void loop();
+
+int main(){
+	prepare();
+
+	while(1){
+		loop();
+	}
+}
+
+void prepare(){
+	// enable global interrupts and serial port
+	pins_init();
+	serial_init(9600);
+
+	pin_mode(11, OUTPUT);
+	pin_mode(10, INPUT);
+	pin_mode(8, INPUT);
+}
+
+unsigned char pwm = 0;
+
+void loop(){
+	if(digital_read(10) && digital_read(8)){
+		digital_write(11, HIGH);
+	}
+	else{
+		digital_write(11, LOW);
+	}
+
+	_delay_ms(25);
+}
diff --git a/main.c b/main.c
index d850804..9c7b9e7 100644
--- a/main.c
+++ b/main.c
@@ -1,4 +1,3 @@
-//#include <util/delay.h>
 #include <stdio.h>
 #include "ard/serial.h"
 #include "ard/pins.h"
@@ -20,16 +19,6 @@ void prepare(){
 	pins_init();
 	serial_init(9600);
 
-	// digital input/output example
-	/*pin_mode(11, OUTPUT);
-	pin_mode(10, INPUT);
-	pin_mode(8, INPUT);*/
-
-	// anlog input example
-	/*pin_mode(A1, INPUT);
-	pin_mode(A2, INPUT);*/
-
-	// PWM example
 	pin_mode(A1, INPUT);
 	pin_mode(6, OUTPUT);
 	pin_mode(11, OUTPUT);
@@ -38,23 +27,6 @@ void prepare(){
 unsigned char pwm = 0;
 
 void loop(){
-	// digital input/output example
-	/*if(digital_read(10) && digital_read(8)){
-		digital_write(11, HIGH);
-	}
-	else{
-		digital_write(11, LOW);
-	}*/
-
-	// anlog input example
-	/*int analog1 = analog_read(A1);
-	int analog2 = analog_read(A2);
-	
-	char out[15];
-	sprintf(out, "%d %d", analog1, analog2);
-	serial_write(out, 15);*/
-
-	// PWM example
 	int analog = map(analog_read(A1), 0, 1023, 0, 255);
 	analog_write(11, analog);
 
@@ -68,6 +40,4 @@ void loop(){
 	char out[15];
 	sprintf(out, "%d", analog);
 	serial_write(out, 15);
-
-	//_delay_ms(25);
 }