main.cpp

00001 #include "mbed.h"
00002 #include "VCNL4010.h"
00003 
00004 DigitalOut LED_0 (PB_6);
00005 DigitalOut LED_1 (PA_7);
00006 DigitalOut LED_2 (PA_6);
00007 DigitalOut LED_3 (PA_5);
00008  
00009 //Virtual serial port over USB
00010 Serial pc(USBTX, USBRX);
00011 Serial modem(PA_9, PA_10);
00012 
00013 // configure VCNL4010
00014 VCNL40x0 VCNL40x0_Device (PB_9, PB_8, VCNL40x0_ADDRESS);      // Define SDA, SCL pin and I2C address
00015 
00016 
00017 int main() {
00018     
00019     LED_0 = 1;
00020     LED_1 = 1;
00021     LED_2 = 1;
00022     LED_3 = 1;
00023 
00024     unsigned char ID=0;
00025     unsigned int  AmbiValue=0;
00026     
00027        // print information on screen
00028     pc.printf("\n\n VCNL4010 Proximity/Ambient Light Sensor");
00029     pc.printf("\n Read Ambillight on demand in endless loop");
00030 
00031     VCNL40x0_Device.ReadID (&ID);                           // Read VCNL40x0 product ID revision register
00032     pc.printf("\n\n Product ID Revision Register: %d", ID);
00033 
00034     wait_ms(3000);                                          // wait 3s (only for display)
00035     
00036     while(1) { 
00037         VCNL40x0_Device.ReadAmbiOnDemand (&AmbiValue);      // read ambi value on demand
00038         pc.printf("Ambient light: %5.0i cts \tIlluminance: %7.2f lx\r", AmbiValue, AmbiValue/4.0);
00039         if(AmbiValue < 5000) LED_3 = 0;
00040         else LED_3 = 1;
00041         if(AmbiValue < 4000) LED_2 = 0;
00042         else LED_2 = 1;
00043         if(AmbiValue < 3000) LED_1 = 0;
00044         else LED_1 = 1;
00045         if(AmbiValue < 2000) LED_0 = 0;
00046         else LED_0 = 1;
00047     }
00048 }