main.cpp

00001 #include "mbed.h"
00002 
00003 Serial pc(USBTX, USBRX);
00004 AnalogIn sensorout(A0);
00005 DigitalOut enablesensor(A1);
00006 
00007 void ml8511_print_one_value(){
00008     float uvraw, uv;
00009     #define MIN (0.300)
00010     #define MAX (0.900)
00011     #define UVONMAX 15
00012     uvraw = sensorout;
00013     uv = ( (UVONMAX/(MAX-MIN)) * (uvraw - MIN) );
00014     pc.printf("UV Intensity %2.2fmW/cm^2 (raw[%2.3f])\r\n", uv, uvraw);
00015     }
00016 
00017 int main() {
00018     pc.printf("\n\r");
00019     pc.printf("ML8511 UV sensor test program.\n\r");
00020     pc.printf("Reported UV intensity values are rough approximates.\n\r");
00021     pc.printf("Please refer to specification page 4 for UV intensity characteristics.\n\r");
00022     enablesensor = 1;
00023     wait_ms(1);
00024     
00025     while(1) {
00026         ml8511_print_one_value();
00027         wait(0.4);
00028     }
00029 }