altoslib: Fix MM conversion functions

Pressure is already reported in Pa, no need to convert that.
Voltage divider computations were backwards.

Signed-off-by: Keith Packard <keithp@keithp.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/altoslib/AltosRecordMM.java b/altoslib/AltosRecordMM.java
index 055cf85f..5f952f7a 100644
--- a/altoslib/AltosRecordMM.java
+++ b/altoslib/AltosRecordMM.java
@@ -47,7 +47,7 @@ public class AltosRecordMM extends AltosRecord {
 
 	public double raw_pressure() {
 		if (pres != MISSING)
-			return pres / 100.0;
+			return pres;
 		return MISSING;
 	}
 
@@ -57,19 +57,19 @@ public class AltosRecordMM extends AltosRecord {
 
 	public double ground_pressure() {
 		if (ground_pres != MISSING)
-			return ground_pres / 100.0;
+			return ground_pres;
 		return MISSING;
 	}
 
 	public double battery_voltage() {
 		if (v_batt != MISSING)
-			return 3.3 * adc(v_batt) * 27.0 / (15.0 + 27.0);
+			return 3.3 * adc(v_batt) * (15.0 + 27.0) / 27.0;
 		return MISSING;
 	}
 
 	static double pyro(int raw) {
 		if (raw != MISSING)
-			return 3.3 * adc(raw) * 27.0 / (100.0 + 27.0);
+			return 3.3 * adc(raw) * (100.0 + 27.0) / 27.0;
 		return MISSING;
 	}