Thermometer indicating temperature and humidity by LED blink pattern
Dependencies: BLE_API mbed nRF51822
main.cpp
- Committer:
- HiroyukiIzumi
- Date:
- 2016-06-17
- Revision:
- 0:8d05f1ced202
File content as of revision 0:8d05f1ced202:
#include "mbed.h" #include "hts221.h" #include "DeviceInformationService.h" #define ON 1 #define OFF 0 DigitalOut myled2(LED2); DigitalOut myled1(LED1); int main() { float temp = 12.0; int tempint = static_cast<int> (temp); int tempdigit1 = 0; int tempdigit10 = 0; float humi = 55; int humiint = static_cast<int> (humi); int humidigit1 = 0; int humidigit10 = 0; int i = 0; if (hts221_init()) { //Check if the sensor is initialized correctly HTS221_Calib(); //calibrate thermometer while(true) { //Infinite loop HTS221_ReadTempHumi(&temp, &humi); tempint = static_cast<int> (temp); tempdigit1 = tempint % 10; tempdigit10 = tempint / 10; for (i = tempdigit10 ; i ; i--) { myled1 = ON; wait (0.5); myled1 = OFF ; wait (1.0); } for (i = tempdigit1 ; i ; i--) { myled1 = ON; wait (0.1); myled1 = OFF ; wait (0.4); } humiint = static_cast<int> (humi); humidigit1 = humiint % 10; humidigit10 = humiint / 10; for (i = humidigit10 ; i ; i--) { myled2 = ON; wait (0.5); myled2 = OFF ; wait (1.0); } for (i = humidigit1 ; i ; i--) { myled2 = ON; wait (0.1); myled2 = OFF ; wait (0.4); } wait (4.0); } } else { //Sensor initialize error while(true) { myled1 = ON; wait(0.1); myled1 = OFF; wait(0.2); } } }