Thomas Lyp
Program to read Temperature Sensor
Dependencies: max32630fthr USBDevice
Revision 0:161e2d4d4ef9, committed 2019-06-21
- Comitter:
- tlyp
- Date:
- Fri Jun 21 00:00:47 2019 +0000
- Commit message:
- Simple program to read and control Temperature Sensor.;
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/USBDevice.lib Fri Jun 21 00:00:47 2019 +0000 @@ -0,0 +1,1 @@ +https://developer.mbed.org/teams/MaximIntegrated/code/USBDevice/#dad310740b28
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Fri Jun 21 00:00:47 2019 +0000
@@ -0,0 +1,82 @@
+#include "mbed.h"
+#include "max32630fthr.h"
+#include "USBSerial.h"
+#include "math.h"
+
+MAX32630FTHR pegasus(MAX32630FTHR::VIO_3V3);
+
+// Hardware serial port over DAPLink
+Serial daplink(P2_1, P2_0);
+
+// Virtual serial port over USB
+USBSerial microUSB;
+I2C i2c(P5_7, P6_0); //sda,scl
+
+const int Write_Addr = 0x90; //Write Addres for Ev Kit per data sheet for temperature sensor
+const int Read_Addr = 0x91; //Last bit set to 1 in order to read (not write)
+const int Temperature_Register_Addr = 0x00; //Address of Register holding Temperature data
+char Configuration_Register_Addr[1]; //Address of Register holding Configuration Settings
+char Configuration_Sleep_Data[1]; //Initialize Sensor into Sleep mode
+char Configuration_OneShot_Data[1]; //Send signal for temperature reading, and then device goes back to sleep
+
+int main()
+{
+microUSB.printf("=================STARTING=================\r\n");
+
+
+char data[1]; //Hold Hexidecimal Value
+char bdata [15]; //Hold Binary Value
+microUSB.printf("Program beginingin now\r\n");
+
+Configuration_Register_Addr[0] = 0x01;
+Configuration_Register_Addr[1] = 0x00;
+
+Configuration_Sleep_Data[0] = 0x01;
+Configuration_Sleep_Data[1] = 0x01;
+
+Configuration_OneShot_Data[0] = 0x01;
+Configuration_OneShot_Data[1] = 0x81;
+
+i2c.write(Write_Addr, Configuration_Sleep_Data , 2, false); //Set into Sleep Mode
+
+
+ while(1){
+ microUSB.printf("Reading initialzing\r\n");
+
+ i2c.write(Write_Addr, Configuration_OneShot_Data , 2, false); //Set into Sleep Mode
+ wait_ms(1);
+
+ i2c.write(Write_Addr, Temperature_Register_Addr , 1, true); //Send Address to begin communication, but leave true so we can
+ i2c.read(Read_Addr, data, 2, false); //Read the 2 bytes of temperature info collected by the sensor
+ //for (int i = 0; i<2;i++){
+ // microUSB.printf("%d ",data[i]); //Confirm values are being read from sensor via I2C
+ //}
+ //microUSB.printf("\r\n");
+ int count =15; //Loading bits from most significant to least
+ microUSB.printf("Starting Temperature Caluclation\r\n");
+ for (int k = 0; k<2;k++){ //Go through both bytes
+ //microUSB.printf("Converting %d from decimal to binary \r\n",data[k]);
+ for (int j = 7;j>=0;j--){
+ int r = data[k]>>j; //Check all 8 bits
+ if(r&1) //Binary 1
+ bdata[count] = 1; //Load 1 into array
+ else //Binary 0
+ bdata[count] = 0; //Load 0 into array
+ count --; //Move to next array position
+ }
+ }
+ double temp = 0;
+ int index = 14;
+ for (float z=6;z>=-8;z--){ //Calculate temperature from array holding binary value
+ float factor = pow (2,z); //Calculate Added Temperature for each bit (Per data sheet)
+ temp += bdata[index] * factor; //Combine all bit temperature to aquire total sum
+ index--;
+ }
+ microUSB.printf("Temperature is %f degrees Celcius\r\n", temp);
+ float fahrenheit = (((temp*9)/5) + 32); //Calculate temperature in F
+ microUSB.printf("Temperature is %f degrees fahrenheit\r\n", fahrenheit);
+ microUSB.printf("Reading Complete\r\n");
+ microUSB.printf("\r\n\n\n\n\n\n");
+ wait(5); //Sensor measures every 10 seconds
+ }
+}
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/max32630fthr.lib Fri Jun 21 00:00:47 2019 +0000 @@ -0,0 +1,1 @@ +http://developer.mbed.org/teams/MaximIntegrated/code/max32630fthr/#8f6e6a800f2f
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed-os.lib Fri Jun 21 00:00:47 2019 +0000 @@ -0,0 +1,1 @@ +https://github.com/ARMmbed/mbed-os/#78474a5129e18e136cc7e872adbaa5b74fbb8f6a