Ksenia Kondrashova
Русифицированная версия программы для измерения температуры и отн. влажности и вывода информации на сенсорный TFT
Dependencies: FT800_2 HYT mbed
Компоненты
- Датчик температуры и относительной влажности HYT-271 / HYT-221 / HYT-939 от компании IST-AG
- TFT-модуль серии uxTouch от компании Riverdi
- Плата-переходник Break Out Board 20 от компании Riverdi
- Любая отладочная плата с поддержкой mbed, интерфейсами I2C и SPI interface двумя свободными линиями для сигналов PD и INT
Подключение
Отладочная плата к TFT-модулю
Отладочная плата подключается к модулю через переходник Break Out Board 20. На плате-переходнике используется 6 сигналов: SCK, MOSI, MISO, SS (интерфейс SPI), PD (powerdown) и INT (interrupt).
Питание должно быть подано не только на VDD, но и на BLVDD - подсветку экрана. Соответствующие выводы можно просто соединить между собой:
Отладочная плата к датчику серии HYT
К датчику отладочная плата подключается по I2C. Не забываем про подтяжку к питанию:
Демонстрация работы
Процесс создания приложения подробно описан тут: https://habrahabr.ru/users/uuuulala/topics/
Diff: main.cpp
- Revision:
- 0:9db07391e780
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Fri Oct 07 11:03:16 2016 +0000
@@ -0,0 +1,152 @@
+#include "mbed.h"
+#include "FT_Platform.h"
+#include "HYT.h"
+#include "display.h"
+#include "statistics.h"
+
+Ticker timeKeeping;
+volatile uint64_t seconds = 0;
+uint64_t secondsOffset = 0;
+
+HYT SENSOR (PD6, PD7); // sda, scl [SLSTK3400A]
+FT800 TFT (PE10, PE11, PE12, PE13, PB11, PD4); // mosi, miso, sck, ss, int, pd [SLSTK3400A]
+//HYT SENSOR (D14, D15); // sda, scl [WIZwiki-W7500P]
+//FT800 TFT (D11, D12, D13, D10, D9, D8); // mosi, miso, sck, ss, int, pd [WIZwiki-W7500P]
+//HYT SENSOR (PA08, PA09); // sda, scl [ATSAMD21-XPRO]
+//FT800 TFT (PA18, PA16, PA19, PA17, PA20, PA21); // mosi, miso, sck, ss, int, pd [ATSAMD21-XPRO]
+
+Display disp(&TFT);
+Statistics stat;
+
+/**************************************************************************************************************************
+************************** Update statistics data every second ************************************************************
+**************************************************************************************************************************/
+void secondsCallback(void)
+{
+ if (seconds != 0) {
+ secondsOffset = stat.UpdateStatistics(SENSOR.humidity, SENSOR.temperature, seconds, secondsOffset);
+ } else {
+ stat.InitValues(SENSOR.humidity, SENSOR.temperature);
+ }
+ seconds ++;
+}
+
+/**************************************************************************************************************************
+************************** HYT sensor polling cycle ***********************************************************************
+**************************************************************************************************************************/
+void dataUpdate(void)
+{
+ SENSOR.MRCommand();
+ wait_ms(100);
+ SENSOR.DFCommand();
+}
+
+/**************************************************************************************************************************
+************************** Main function **********************************************************************************
+**************************************************************************************************************************/
+int main()
+{
+ timeKeeping.attach(&secondsCallback, 1.0f);
+
+ disp.LoadImagesAndFonts();
+ disp.HandleAllBitmaps();
+ disp.Calibration();
+
+ disp.activeScreen = MENU_SCREEN;
+ disp.pressedButton = NONE_PRESS;
+
+ // change active screen depending on pressed area
+ while(1) {
+ dataUpdate();
+ disp.pressedButton = disp.GetTouch();
+
+ // ----------------------------------------------------------------------------------------------
+ // Main menu screen
+ if (disp.activeScreen == MENU_SCREEN) {
+ disp.MainMenu(SENSOR.humidity, SENSOR.temperature);
+ if (disp.pressedButton) {
+ wait_ms(150);
+ if (disp.pressedButton == CURR_TEMP_PRESS) {
+ disp.activeScreen = CURR_TEMP_SCREEN;
+ } else if (disp.pressedButton == CURR_HUM_PRESS) {
+ disp.activeScreen = CURR_HUM_SCREEN;
+ } else if (disp.pressedButton == STAT_HUM_PRESS) {
+ disp.activeScreen = HUM_24HRS_SCREEN;
+ } else if (disp.pressedButton == STAT_TEMP_PRESS) {
+ disp.activeScreen = TEMP_24HRS_SCREEN;
+ } else if (disp.pressedButton == ABOUT_PRESS) {
+ disp.activeScreen = ABOUT_SCREEN;
+ }
+ disp.pressedButton = NONE_PRESS;
+ }
+
+ // ----------------------------------------------------------------------------------------------
+ // Any other screen
+ } else {
+ // ----------------------------------------------------------------------------------------------
+ // You can back to main menu from any screen
+ if (disp.pressedButton == MENU_PRESS) {
+ disp.pressedButton = NONE_PRESS;
+ disp.activeScreen = MENU_SCREEN;
+ } else {
+ // ----------------------------------------------------------------------------------------------
+ // Screen with current temperature
+ if (disp.activeScreen == CURR_TEMP_SCREEN) {
+ disp.CurrentTemperature(SENSOR.temperature);
+ // ----------------------------------------------------------------------------------------------
+ // Screen with current humidity
+ } else if (disp.activeScreen == CURR_HUM_SCREEN) {
+ disp.CurrentHumidity(SENSOR.humidity);
+ // ----------------------------------------------------------------------------------------------
+ // Screens with humidity statistics
+ } else if (disp.activeScreen == HUM_24HRS_SCREEN) {
+ disp.StatHumidity_24hrs(seconds, stat.humidity24hrs, secondsOffset);
+ if (disp.pressedButton >= ZONE_1_PRESS && disp.pressedButton <= ZONE_8_PRESS) {
+ wait_ms(150);
+ disp.activeScreen = HUM_3HRS_SCREEN;
+ disp.pressedButton = NONE_PRESS;
+ }
+ } else if (disp.activeScreen == HUM_3HRS_SCREEN) {
+ disp.StatHumidity_3hrs(seconds, stat.humidity24hrs, secondsOffset);
+ if (disp.pressedButton >= ZONE_1_PRESS && disp.pressedButton <= ZONE_6_PRESS) {
+ wait_ms(150);
+ disp.activeScreen = HUM_30MIN_SCREEN;
+ disp.pressedButton = NONE_PRESS;
+ }
+ } else if (disp.activeScreen == HUM_30MIN_SCREEN) {
+ disp.StatHumidity_30min(seconds, stat.humidity24hrs, secondsOffset);
+ if (disp.pressedButton == STAT_HUM_PRESS) {
+ disp.activeScreen = HUM_24HRS_SCREEN;
+ disp.pressedButton = NONE_PRESS;
+ }
+ // ----------------------------------------------------------------------------------------------
+ // Screens with humidity statistics
+ } else if (disp.activeScreen == TEMP_24HRS_SCREEN) {
+ disp.StatTemperature_24hrs(seconds, stat.temperature24hrs, secondsOffset);
+ if (disp.pressedButton >= ZONE_1_PRESS && disp.pressedButton <= ZONE_8_PRESS) {
+ wait_ms(150);
+ disp.activeScreen = TEMP_3HRS_SCREEN;
+ disp.pressedButton = NONE_PRESS;
+ }
+ } else if (disp.activeScreen == TEMP_3HRS_SCREEN) {
+ disp.StatTemperature_3hrs(seconds, stat.temperature24hrs, secondsOffset);
+ if (disp.pressedButton >= ZONE_1_PRESS && disp.pressedButton <= ZONE_6_PRESS) {
+ wait_ms(150);
+ disp.activeScreen = TEMP_30MIN_SCREEN;
+ disp.pressedButton = NONE_PRESS;
+ }
+ } else if (disp.activeScreen == TEMP_30MIN_SCREEN) {
+ disp.StatTemperature_30min(seconds, stat.temperature24hrs, secondsOffset);
+ if (disp.pressedButton == STAT_TEMP_PRESS) {
+ disp.activeScreen = TEMP_24HRS_SCREEN;
+ disp.pressedButton = NONE_PRESS;
+ }
+ // ----------------------------------------------------------------------------------------------
+ // Screens with information about sensor
+ } else if (disp.activeScreen == ABOUT_SCREEN) {
+ disp.AboutSensor();
+ }
+ }
+ }
+ }
+}
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