Flying Sea Glider / MS5837

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Fork of MS5837 by POTLESS

Files at this revision

API Documentation at this revision

Revision 1:a8eea2a2263f, committed 2018-08-13

Comitter:
CodyMarquardt
Date:
Mon Aug 13 18:48:45 2018 +0000
Parent:
0:5f6034409fd0
Commit message:
copy mini glider programs to FSG group

Changed in this revision

MS5837.cpp Show annotated file Show diff for this revision Revisions of this file
MS5837.h Show annotated file Show diff for this revision Revisions of this file 
--- a/MS5837.cpp	Sun May 28 10:29:51 2017 +0000
+++ b/MS5837.cpp	Mon Aug 13 18:48:45 2018 +0000
@@ -19,7 +19,7 @@
     /* transmit out 1 byte reset command */
     ms5837_tx_data[0] = ms5837_reset;
     if ( i2c.write( device_address,  ms5837_tx_data, 1 ) );
-    printf("send soft reset\n");
+    //printf("send soft reset\n\r");
     wait_ms(20);
 }
 
@@ -103,6 +103,30 @@
     }
 }
 
-float MS5837::depth(void) {
-    return (P_MS5837/100)*1.019716;
+float MS5837::get_depth_initial(void){
+    depth_iter = 0;
+    Depth_0 = 0;
+    for(int i = 0; i < 5; i++){
+        Barometer_MS5837();
+        depth_iter = ((P_MS5837)*1.019716);
+        Depth_0 = depth_iter + Depth_0;
+    }
+    Depth_0 = Depth_0/5;
+    if(Depth_0 < 1000 || Depth_0 > 1100){
+        MS5837Init();
+        get_depth_initial();
+    }
+    return Depth_0;
+}
+
+float MS5837::get_depth(void) {
+    depth_iter = 0;
+    depth = 0;
+    for(int i = 0; i <= 2; i++){
+        Barometer_MS5837();
+        depth_iter = ((P_MS5837)*1.019716)-Depth_0;
+        depth = depth_iter + depth;
+    }
+    depth = depth/3;
+    return depth;
 }
\ No newline at end of file

--- a/MS5837.h	Sun May 28 10:29:51 2017 +0000
+++ b/MS5837.h	Mon Aug 13 18:48:45 2018 +0000
@@ -35,7 +35,7 @@
 class MS5837{
 private:
     int D1, D2, Temp, C[8];
-    float T_MS5837, P_MS5837;
+    float T_MS5837, P_MS5837,depth_iter,depth;
     /* Data buffers */
     char ms5837_rx_data[MS5837_RX_DEPTH];
     char ms5837_tx_data[MS5837_TX_DEPTH];
@@ -54,7 +54,9 @@
     float MS5837_Pressure (void);
     float MS5837_Temperature (void);
     void Barometer_MS5837(void);
-    float depth(void);
+    float get_depth(void);
+    float get_depth_initial(void);
+    float Depth_0;
 
 private:
     I2C     i2c;