Valentín Salinas / Mbed 2 deprecated meteo_station

SEDO subject project

Dependencies:   ds3231 mbed-rtos mbed DHT

light_sensor.cpp@12:1d544cdab2cf, 2017-05-15 (annotated)

Committer:
ValenSalLop
Date:
Mon May 15 18:30:20 2017 +0000
Revision:
12:1d544cdab2cf
final;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ValenSalLop 12:1d544cdab2cf 1 /*
ValenSalLop 12:1d544cdab2cf 2 * Light sensor operations
ValenSalLop 12:1d544cdab2cf 3 */
ValenSalLop 12:1d544cdab2cf 4 #include "mbed.h"
ValenSalLop 12:1d544cdab2cf 5 #include "rtos.h"
ValenSalLop 12:1d544cdab2cf 6 #include "main.h"
ValenSalLop 12:1d544cdab2cf 7 #include "light_sensor.h"
ValenSalLop 12:1d544cdab2cf 8
ValenSalLop 12:1d544cdab2cf 9 AnalogIn LDR(A5);
ValenSalLop 12:1d544cdab2cf 10
ValenSalLop 12:1d544cdab2cf 11 uint32_t light_init(void const *args)
ValenSalLop 12:1d544cdab2cf 12 {
ValenSalLop 12:1d544cdab2cf 13 return 1;
ValenSalLop 12:1d544cdab2cf 14 }
ValenSalLop 12:1d544cdab2cf 15 void light_thread(void const *args)
ValenSalLop 12:1d544cdab2cf 16 {
ValenSalLop 12:1d544cdab2cf 17 //DEBUG
ValenSalLop 12:1d544cdab2cf 18 mutexPCComm.lock();
ValenSalLop 12:1d544cdab2cf 19 pc.printf("LDR: thread init\n");
ValenSalLop 12:1d544cdab2cf 20 mutexPCComm.unlock();
ValenSalLop 12:1d544cdab2cf 21 float lightCurr;
ValenSalLop 12:1d544cdab2cf 22 int8_t error = 0;
ValenSalLop 12:1d544cdab2cf 23 int8_t attempts=0;
ValenSalLop 12:1d544cdab2cf 24 while(true) {
ValenSalLop 12:1d544cdab2cf 25 Thread::signal_wait(0x1);
ValenSalLop 12:1d544cdab2cf 26 mutexPCComm.lock();
ValenSalLop 12:1d544cdab2cf 27 pc.printf("LDR: loop\n");
ValenSalLop 12:1d544cdab2cf 28 mutexPCComm.unlock();
ValenSalLop 12:1d544cdab2cf 29 error = -1;
ValenSalLop 12:1d544cdab2cf 30 attempts=0;
ValenSalLop 12:1d544cdab2cf 31 while(error!=0 && attempts<MAX_READ_ATTEMPTS_LIGHT && sensors_running == true) {
ValenSalLop 12:1d544cdab2cf 32 lightCurr=LDR.read();
ValenSalLop 12:1d544cdab2cf 33 error = 0;
ValenSalLop 12:1d544cdab2cf 34 if(error==0) {
ValenSalLop 12:1d544cdab2cf 35 mutexData.lock();
ValenSalLop 12:1d544cdab2cf 36 data.light = lightCurr;
ValenSalLop 12:1d544cdab2cf 37 data.lightError = 0;
ValenSalLop 12:1d544cdab2cf 38 mutexData.unlock();
ValenSalLop 12:1d544cdab2cf 39 } else {
ValenSalLop 12:1d544cdab2cf 40 mutexData.lock();
ValenSalLop 12:1d544cdab2cf 41 data.lightError = 0;
ValenSalLop 12:1d544cdab2cf 42 mutexData.unlock();
ValenSalLop 12:1d544cdab2cf 43 attempts++;
ValenSalLop 12:1d544cdab2cf 44 Thread::wait(3000);
ValenSalLop 12:1d544cdab2cf 45 }
ValenSalLop 12:1d544cdab2cf 46 } // while read attempts
ValenSalLop 12:1d544cdab2cf 47 } // main thread while
ValenSalLop 12:1d544cdab2cf 48 } // thread function