Diff: main.cpp

Revision:

0:bd554f9d9a54

Child:

1:55c36e464885

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Nov 15 10:04:05 2016 +0000
@@ -0,0 +1,34 @@
+#include "mbed.h"
+
+#define AMBIENT_TEMP             25.0f    /* Ambient Temperature in °C */
+#define VSENS_AT_AMBIENT_TEMP   760.0f    /* VSENSE value in mV at ambient temperature */
+#define AVG_SLOPE                25.0f    /* Average slope in mV/°C multiplied by 10 */
+#define VREF                   3300.0f    /* Device power supply in mV */
+
+AnalogIn tempsensor(ADC_TEMP);
+
+DigitalOut led(LED1);
+
+int main()
+{
+    float meas_f;
+    float JTemp_f;
+
+    printf("\nSTM32 Internal Temperature Sensor example\n");
+
+    while(1) {
+
+        meas_f = tempsensor.read();
+
+        /* Compute the Junction Temperature value
+        JTemp = ((Vsens - V25)/Avg_Slope) + 25°C
+        The internal temperature sensor supports a temperature range of –40 to 125°C with an accuracy of +/-1.5°C. */
+
+        JTemp_f = (((meas_f * VREF) - VSENS_AT_AMBIENT_TEMP) * 10.0f / AVG_SLOPE) + AMBIENT_TEMP;
+
+        printf("Internal Temperature = %.1f degree C\n", JTemp_f);
+
+        led = !led;
+        wait(1.0);
+    }
+}