/*
* Sensor data conversion functions
*/
-package org.altusmetrum.AltosLib;
+package org.altusmetrum.altoslib_3;
public class AltosConvert {
/*
return ignite / 32767 * 15.0;
}
+ public static double
+ barometer_to_pressure(double count)
+ {
+ return ((count / 16.0) / 2047.0 + 0.095) / 0.009 * 1000.0;
+ }
+
+ static double
+ thermometer_to_temperature(double thermo)
+ {
+ return (thermo - 19791.268) / 32728.0 * 1.25 / 0.00247;
+ }
+
+ static double mega_adc(int raw) {
+ return raw / 4095.0;
+ }
+
+ static public double mega_battery_voltage(int v_batt) {
+ if (v_batt != AltosLib.MISSING)
+ return 3.3 * mega_adc(v_batt) * (15.0 + 27.0) / 27.0;
+ return AltosLib.MISSING;
+ }
+
+ static double mega_pyro_voltage(int raw) {
+ if (raw != AltosLib.MISSING)
+ return 3.3 * mega_adc(raw) * (100.0 + 27.0) / 27.0;
+ return AltosLib.MISSING;
+ }
+
+ static double tele_mini_voltage(int sensor) {
+ double supply = 3.3;
+
+ return sensor / 32767.0 * supply * 127/27;
+ }
+
+ static double easy_mini_voltage(int sensor) {
+ double supply = 3.0;
+
+ return sensor / 32767.0 * supply * 127/27;
+ }
+
public static double radio_to_frequency(int freq, int setting, int cal, int channel) {
double f;
return meters * (100 / (2.54 * 12));
}
+ public static double feet_to_meters(double feet) {
+ return feet * 12 * 2.54 / 100.0;
+ }
+
+ public static double meters_to_miles(double meters) {
+ return meters_to_feet(meters) / 5280;
+ }
+
+ public static double miles_to_meters(double miles) {
+ return feet_to_meters(miles * 5280);
+ }
+
+ public static double meters_to_mph(double mps) {
+ return meters_to_miles(mps) * 3600;
+ }
+
+ public static double mph_to_meters(double mps) {
+ return miles_to_meters(mps) / 3600;
+ }
+
public static double meters_to_mach(double meters) {
return meters / 343; /* something close to mach at usual rocket sites */
}
return meters / 9.80665;
}
+ public static double c_to_f(double c) {
+ return c * 9/5 + 32;
+ }
+
+ public static double f_to_c(double c) {
+ return (c - 32) * 5/9;
+ }
+
+ public static boolean imperial_units = false;
+
+ public static AltosDistance distance = new AltosDistance();
+
+ public static AltosHeight height = new AltosHeight();
+
+ public static AltosSpeed speed = new AltosSpeed();
+
+ public static AltosAccel accel = new AltosAccel();
+
+ public static AltosTemperature temperature = new AltosTemperature();
+
+ public static AltosOrient orient = new AltosOrient();
+
+ public static String show_gs(String format, double a) {
+ a = meters_to_g(a);
+ format = format.concat(" g");
+ return String.format(format, a);
+ }
+
+ public static String say_gs(double a) {
+ return String.format("%6.0 gees", meters_to_g(a));
+ }
+
public static int checksum(int[] data, int start, int length) {
int csum = 0x5a;
for (int i = 0; i < length; i++)