Flexible Data Logger Example Use and Test Code

Diff: main.cpp

Revision:

0:0cfc06f9f18c

Child:

1:58f86fb1fb22

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Mar 30 21:44:52 2016 +0000
@@ -0,0 +1,69 @@
+/* xj-data-log-test-and-exmple.c
+  Shows basic usage of dat_log library and
+  performs some basic tests. 
+  
+  By Joseph Ellsworth CTO of A2WH
+  Take a look at A2WH.com Producing Water from Air using Solar Energy
+  March-2016 License: https://developer.mbed.org/handbook/MIT-Licence 
+  Please contact us http://a2wh.com for help with custom design projects.
+*/
+    
+#include "mbed.h"
+#include "dataLog.h"  
+
+const float adc_ref = 3.3f;
+// SPI PINS 
+#define SPI1_SCK PA_5
+#define SPI1_MISO PA_6
+#define SPI1_MOSI PA_7
+
+// SPI PINS for Data Log chip
+#define dataLogMISOPin  SPI1_MISO
+#define dataLogMOSIPin  SPI1_MOSI
+#define dataLogCLKPin   SPI1_SCK
+#define dataLogSelectPin PC_12
+
+AnalogIn waterTempSense(A0);
+AnalogIn oxygenLevelSense(A1);
+AnalogIn solarStrengthSense(A2);
+AnalogIn waterSpeedSense(A3);
+// imagine for sake of example that we have
+// circuitry that actually convert these Volt
+// readings to useful readings.
+ 
+DigitalOut led(LED1);
+
+
+int main() {
+    printf("\nData Logger Example example\n");
+
+    float meas;
+    char dlbuff[81]; // buffer used internally by this instance of data log
+    DataLogChipType dlchip(dataLogMOSIPin, dataLogMISOPin, dataLogCLKPin, dataLogSelectPin);
+    DLOG *lgr = dlMake(&dlchip, dlbuff, 80);    
+    
+    
+    lgr.log(lgr, "HEAD\tsensors", "waterTemp,oxygenLevel,solarStrength,waterSpeed");
+    
+    
+    while(1) {
+        float waterTemp = waterTempSense.read() * adc_ref;
+        float oxygenLevel = oxygenLevelSense.read() * adc_ref;
+        float solarStrength = solarStrengthSense.read() * adc_ref;
+        float waterSpeed = waterSpeedSense.read() * adc_ref;
+    
+        float tbff
+    // lgr will internally log time.  Whenever the date changes
+    // it will log a new date records.     
+        meas = analog_value.read(); // Converts and read the analog input value (value from 0.0 to 1.0)
+        meas = meas * 3300; // Change the value to be in the 0 to 3300 range
+        printf("measure = %.0f mV\n", meas);
+        if (meas > 2000) { // If the value is greater than 2V then switch the LED on
+          led = 1;
+        }
+        else {
+          led = 0;
+        }
+        wait(0.2); // 200 ms
+    }
+}