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Dependencies:   mbed

main.cpp@0:a4ad8cb94c43, 2015-11-12 (annotated)

Committer:
wanchp
Date:
Thu Nov 12 03:53:37 2015 +0000
Revision:
0:a4ad8cb94c43
example

Who changed what in which revision?

UserRevisionLine numberNew contents of line
wanchp 0:a4ad8cb94c43 1 #include "mbed.h"
wanchp 0:a4ad8cb94c43 2
wanchp 0:a4ad8cb94c43 3 AnalogIn analog_value(A0);
wanchp 0:a4ad8cb94c43 4
wanchp 0:a4ad8cb94c43 5 DigitalOut led(LED1);
wanchp 0:a4ad8cb94c43 6
wanchp 0:a4ad8cb94c43 7 int main() {
wanchp 0:a4ad8cb94c43 8 float meas;
wanchp 0:a4ad8cb94c43 9
wanchp 0:a4ad8cb94c43 10 printf("\nAnalogIn example\n");
wanchp 0:a4ad8cb94c43 11
wanchp 0:a4ad8cb94c43 12 while(1) {
wanchp 0:a4ad8cb94c43 13 meas = analog_value.read(); // Converts and read the analog input value (value from 0.0 to 1.0)
wanchp 0:a4ad8cb94c43 14 meas = meas * 3300; // Change the value to be in the 0 to 3300 range
wanchp 0:a4ad8cb94c43 15 printf("measure = %.0f mV\n", meas);
wanchp 0:a4ad8cb94c43 16 if (meas > 2000) { // If the value is greater than 2V then switch the LED on
wanchp 0:a4ad8cb94c43 17 led = 1;
wanchp 0:a4ad8cb94c43 18 }
wanchp 0:a4ad8cb94c43 19 else {
wanchp 0:a4ad8cb94c43 20 led = 0;
wanchp 0:a4ad8cb94c43 21 }
wanchp 0:a4ad8cb94c43 22 wait(0.2); // 200 ms
wanchp 0:a4ad8cb94c43 23 }
wanchp 0:a4ad8cb94c43 24 }