Laura Delaney / Mbed 2 deprecated MINILAB_DAY10

Use a touchscreen display to select which sensor measurement to display

Dependencies:   mbed DisplayModule24_demo_day10

Diff: compass.h

Revision:
5:8a2afc6fdeb0
Child:
7:b275c76de4ba
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/compass.h	Tue Jan 17 19:23:00 2017 +0000
@@ -0,0 +1,20 @@
+/*
+*  Compass I2C interface header file
+*  Laura Delaney
+*  1/11/2017
+*/
+
+#ifndef COMPASS_H_
+#define COMPASS_H_
+
+extern I2C connection;
+//initialize the sensor to single measure mode
+void compass_init(int num_avg = 1);
+//calculates the heading from the data, prints the heading if DEBUG_MODE is defined
+float calc_heading(short mags[3], float declination); //x, z, y
+//gets the heading, adjusted for the given declination
+float get_heading(float declination); //spokane is +14.85 and getting smaller
+//gets the average of n readings. If n is not given, averages 5 readings
+float get_avg_heading(float declination, int n = 5);
+
+#endif