Hello World program for HYT temp & humidity sensor
Hello Word program for HYT temp & humidity sensor library. MCU perform polling and then sends data to PC via serial interface once a second.
Connection
Remember to use pull-up resisrors to communicate with sensor by I2C
Diff: main.cpp
- Revision:
- 0:cd8ba9e5f346
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Wed Sep 14 15:54:13 2016 +0000 @@ -0,0 +1,34 @@ +#include "mbed.h" +#include "HYT.h" + +Serial pc(USBTX, USBRX); +Ticker timeKeeping; +// for SLSTK3400A board +HYT SENSOR (PD6, PD7); // sda, scl +// for WIZwiki-W7500P board +//HYT SENSOR (D14, D15); // sda, scl +// for ATSAMD21-XPRO board +//HYT SENSOR (PA08, PA09); // sda, scl + + +// HYT sensor polling cycle +void dataUpdate(void) +{ + SENSOR.MRCommand(); + wait_ms(100); + SENSOR.DFCommand(); +} + +void secondsCallback(void) { + pc.printf("Humidity level: %.1f\r\n%", SENSOR.humidity); + pc.printf("Temperature level: %.1f\r\n%", SENSOR.temperature); + pc.printf("-------------------------------\r\n%", SENSOR.temperature); +} + +int main() +{ + timeKeeping.attach(&secondsCallback, 1.0f); + while(1) { + dataUpdate(); + } +} \ No newline at end of file