diff --git a/board/driver/mpx5100.h b/board/driver/mpx5100.h
index 017bd68..60f0925 100644
--- a/board/driver/mpx5100.h
+++ b/board/driver/mpx5100.h
@@ -1,3 +1,10 @@
+#ifndef MPX5100_H
+#define MPX5100_H
+
 #include "../driver/adc.h"
-// #define SIGNAL_OFFSET // This value corresponds to an air flow of 0
+#define MAX_PRESSURE 120 // Pressure in KPa
+
+float pascal, adc_val;
+void getPascal(void);
 
+#endif // MPX5100_H
diff --git a/board/mpx5100/mpx5100.c b/board/mpx5100/mpx5100.c
index 6f2ae19..5259818 100644
--- a/board/mpx5100/mpx5100.c
+++ b/board/mpx5100/mpx5100.c
@@ -1 +1,7 @@
 #include "../driver/adc.h"
+
+void getPascal(void) {
+	adc_val = adcRead();
+	pascal = ((adc_val / 1023) * MAX_PRESSURE) * 1000;
+ 	printf("%.2f Pa\n" pascal);
+}