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/
TFT/display.Draw_Grids.cpp
- Committer:
- Ksenia
- Date:
- 2016-10-12
- Revision:
- 1:8ca8a4ecbe6b
- Parent:
- 0:9db07391e780
File content as of revision 1:8ca8a4ecbe6b:
#include "display.h"
/* For drawing current values */
/**************************************************************************************************************************
************************** Draw horisontal grid for current temperature (-50 .. +125) *************************************
**************************************************************************************************************************/
void Display::HorisontalGrid_Current_Temperature()
{
(*_TFT).DL(COLOR_RGB(20, 20, 20));
char gridNumb = 125 + 50;
for (int i = 70 * 16; i <= 225 * 16; i += 352) {
(*_TFT).DL(BEGIN(LINES));
(*_TFT).DL(LINE_WIDTH(8));
(*_TFT).DL(VERTEX2F(15 * 16, i));
(*_TFT).DL(VERTEX2F(423 * 16, i));
if (gridNumb >= 50) {
(*_TFT).Number(435, i/16 - 9, 26, 0, gridNumb - 50);
} else if (gridNumb == 25) {
(*_TFT).Text(435, i/16 - 9, 26, 0, "-25");
} else if (gridNumb == 0) {
(*_TFT).Text(435, i/16 - 9, 26, 0, "-50");
}
gridNumb = gridNumb - 25;
}
}
/**************************************************************************************************************************
************************** Draw horisontal grid for current humidity (0 .. 100) *******************************************
**************************************************************************************************************************/
void Display::HorisontalGrid_Current_Humidity()
{
(*_TFT).DL(COLOR_RGB(20, 20, 20));
char gridNumb = 100;
for (int i = 70 * 16; i <= 220 * 16; i += 600) {
(*_TFT).DL(BEGIN(LINES));
(*_TFT).DL(LINE_WIDTH(8));
(*_TFT).DL(VERTEX2F(15 * 16, i));
(*_TFT).DL(VERTEX2F(423 * 16, i));
(*_TFT).Number(435, i/16 - 9, 26, 0, gridNumb);
gridNumb = gridNumb - 25;
}
}
/* For drawing statistics values */
/**************************************************************************************************************************
************************** Draw horisontal grid for temperature (-50 .. +125) *********************************************
**************************************************************************************************************************/
void Display::HorisontalGrid_Statistics_Temperature()
{
(*_TFT).DL(COLOR_RGB(80, 80, 80));
char gridNumb = 125 + 50;
for (int i = 100 * 16; i <= 200 * 16; i += 228) {
(*_TFT).DL(BEGIN(LINES));
(*_TFT).DL(LINE_WIDTH(8));
if (gridNumb == 0 + 50) {
(*_TFT).DL(LINE_WIDTH(12));
}
(*_TFT).DL(VERTEX2F(25 * 16, i));
(*_TFT).DL(VERTEX2F(438 * 16, i));
if (gridNumb >= 50) {
(*_TFT).Number(445, i/16 - 9, 26, 0, gridNumb - 50);
} else if (gridNumb == 25) {
(*_TFT).Text(445, i/16 - 9, 26, 0, "-25");
} else if (gridNumb == 0) {
(*_TFT).Text(445, i/16 - 9, 26, 0, "-50");
}
gridNumb = gridNumb - 25;
}
}
/**************************************************************************************************************************
************************** Draw horisontal grid for humidity (0 .. 100) ***************************************************
**************************************************************************************************************************/
void Display::HorisontalGrid_Statistics_Humidity()
{
(*_TFT).DL(COLOR_RGB(80, 80, 80));
char gridNumb = 100;
for (int i = 100 * 16; i <= 200 * 16; i += (25*16)) {
(*_TFT).DL(BEGIN(LINES));
(*_TFT).DL(LINE_WIDTH(8));
(*_TFT).DL(VERTEX2F(25 * 16, i));
(*_TFT).DL(VERTEX2F(438 * 16, i));
(*_TFT).Number(445, i/16 - 9, 26, 0, gridNumb);
gridNumb = gridNumb - 25;
}
}
/**************************************************************************************************************************
************************** Draw vertical grid for 24-hour interval ******************************************&*************
**************************************************************************************************************************/
void Display::VerticalGrid24hrs(uint64_t gridSecondsOffset)
{
uint64_t gridSeconds = gridSecondsOffset;
for (int i = 25 * 16; i <= 433 * 16; i += 17 * 16) {
(*_TFT).DL(COLOR_RGB(80, 80, 80));
(*_TFT).DL(BEGIN(LINES));
(*_TFT).DL(LINE_WIDTH(8));
(*_TFT).DL(VERTEX2F(i, 100 * 16));
(*_TFT).DL(VERTEX2F(i, 200 * 16));
CreateStringTime(gridTimeStr, gridSeconds);
if ((i - 25 * 16) % (3 * 17 * 16) == 0) {
(*_TFT).Text(i/16 - 20, 210, 20, 0, gridTimeStr);
(*_TFT).DL(COLOR_RGB(20, 20, 20));
(*_TFT).DL(BEGIN(LINES));
(*_TFT).DL(VERTEX2F(i, 100 * 16));
(*_TFT).DL(VERTEX2F(i, 205 * 16));
}
gridSeconds = gridSeconds + 3600;
}
}
/**************************************************************************************************************************
************************** Draw vertical grid for three-hour interval *****************************************************
**************************************************************************************************************************/
void Display::VerticalGrid3hrs(uint64_t gridSecondsOffset)
{
(*_TFT).DL(COLOR_RGB(0, 0, 0));
uint64_t gridSeconds = 300 * timePoint3hrs + gridSecondsOffset;
for (int i = 25 * 16; i <= 433 * 16; i += 34 * 16) {
(*_TFT).DL(BEGIN(LINES));
(*_TFT).DL(LINE_WIDTH(8));
(*_TFT).DL(VERTEX2F(i, 100 * 16));
(*_TFT).DL(VERTEX2F(i, 200 * 16));
CreateStringTime(gridTimeStr, gridSeconds);
if ((i - 25*16) % (2 * 34 * 16) == 0) {
(*_TFT).DL(COLOR_RGB(80, 80, 80));
(*_TFT).Text(i/16 - 20, 210, 20, 0, gridTimeStr);
(*_TFT).DL(COLOR_RGB(0, 0, 0));
(*_TFT).DL(BEGIN(LINES));
(*_TFT).DL(VERTEX2F(i, 100 * 16));
(*_TFT).DL(VERTEX2F(i, 205 * 16));
}
gridSeconds = gridSeconds + 900;
}
}
/**************************************************************************************************************************
************************** Draw vertical grid for 30-minutes interval *****************************************************
**************************************************************************************************************************/
void Display::VerticalGrid30min(uint64_t gridSecondsOffset)
{
(*_TFT).DL(COLOR_RGB(0, 0, 0));
uint64_t gridSeconds = 300 * (timePoint3hrs + timePoint30min) + gridSecondsOffset;
for (int i = 25 * 16; i <= 433 * 16; i += 68 * 16) {
(*_TFT).DL(BEGIN(LINES));
(*_TFT).DL(LINE_WIDTH(8));
(*_TFT).DL(VERTEX2F(i, 100 * 16));
(*_TFT).DL(VERTEX2F(i, 205 * 16));
CreateStringTime(gridTimeStr, gridSeconds);
(*_TFT).DL(COLOR_RGB(80, 80, 80));
(*_TFT).Text(i/16 - 20, 210, 20, 0, gridTimeStr);
(*_TFT).DL(COLOR_RGB(0, 0, 0));
gridSeconds = gridSeconds + 300;
}
}