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_CurrentValues.cpp
- Committer:
- Ksenia
- Date:
- 2016-10-12
- Revision:
- 1:8ca8a4ecbe6b
- Parent:
- 0:9db07391e780
File content as of revision 1:8ca8a4ecbe6b:
#include "display.h" /************************************************************************************************************************** ************************** Display real-time humidity ********************************************************************* **************************************************************************************************************************/ void Display::CurrentHumidity(float humidity) { // accelerator for x-axis data output char accelerator = 6; // create string including current humididty and " %" CreateStringTempHum(humidityStr, humidity, 0); // write the new scalable (* 1.5) data to the next available array position currentHumidity_Y[currentHumidity_X] = (char)(humidity * 1.5); // start FT800 display list StartDL(); // draw bottom color for graph line (*_TFT).DL(COLOR_RGB(200, 200, 200)); (*_TFT).DL(BEGIN(EDGE_STRIP_B)); for (int i = 0; i < 68; i++) { if (currentHumidity_Y[i] != 0 && i <= currentHumidity_X) { (*_TFT).DL(VERTEX2F((i * accelerator + 15) * 16, (220 - currentHumidity_Y[i]) * 16)); } } // draw horisontal grid for humidity (0 .. 100) HorisontalGrid_Current_Humidity(); // draw main graph line (*_TFT).DL(COLOR_RGB(9, 0, 63)); (*_TFT).DL(BEGIN(POINTS)); (*_TFT).DL(POINT_SIZE(25)); for (int i = 0; i < 68; i++) { if (currentHumidity_Y[i] != 0 && (i < currentHumidity_X || i >= currentHumidity_X + 13)) { (*_TFT).DL(VERTEX2F((i * accelerator + 15) * 16, (222 - currentHumidity_Y[i]) * 16)); } } // draw subtitle for main graph line (*_TFT).DL(COLOR_RGB(255, 255, 255)); (*_TFT).DL(BEGIN(RECTS)); (*_TFT).DL(VERTEX2II((currentHumidity_X * accelerator + 40) + 25, (200 - currentHumidity_Y[currentHumidity_X]), 0, 0)); (*_TFT).DL(VERTEX2II((currentHumidity_X * accelerator + 40), (177 - currentHumidity_Y[currentHumidity_X]), 0, 0)); (*_TFT).DL(COLOR_RGB(255, 0, 0)); (*_TFT).Text((currentHumidity_X * accelerator + 30), (180 - currentHumidity_Y[currentHumidity_X] - 7), 28, 0, humidityStr); (*_TFT).DL(BEGIN(LINES)); (*_TFT).DL(LINE_WIDTH(8)); (*_TFT).DL(VERTEX2F((currentHumidity_X * accelerator + 15) * 16, (220 - currentHumidity_Y[currentHumidity_X]) * 16)); (*_TFT).DL(VERTEX2F((currentHumidity_X * accelerator + 35) * 16, (200 - currentHumidity_Y[currentHumidity_X]) * 16)); (*_TFT).DL(COLOR_RGB(255, 30, 33)); (*_TFT).DL(BEGIN(POINTS)); (*_TFT).DL(POINT_SIZE(33)); (*_TFT).DL(VERTEX2F((currentHumidity_X * accelerator + 15) * 16, (220 - currentHumidity_Y[currentHumidity_X]) * 16)); (*_TFT).DL(END()); // write main title (*_TFT).DL(COLOR_RGB(0, 0, 0)); CreateStringRussian("Относительная влажность"); (*_TFT).Text(15, 15, 3, 0, russianStr); // clean the space under the plot, create link to the main menu (*_TFT).DL(SCISSOR_XY(15, 222)); (*_TFT).DL(SCISSOR_SIZE(420, 53)); (*_TFT).Gradient(0, 256, 0xFFFFFF, 450, 16, 0xFFFFFF); MainMenuReference(); // finish FT800 display list FinishDL(); // manage the index for array with real-time humidity if (currentHumidity_X >= 68) { currentHumidity_X = 0; } else { currentHumidity_X ++; } if (pressedButton == MENU_PRESS) { for (int i = 0; i < 68; i++) { currentHumidity_Y[i] = 0; currentHumidity_X = 0; } } } /************************************************************************************************************************** ************************** Display real-time temperature ****************************************************************** **************************************************************************************************************************/ void Display::CurrentTemperature(float temperature) { // accelerator for x-axis data output char accelerator = 6; // create string including current temperature with decimal mark and " С" char degreeOffset = CreateStringTempHum(temperatureStr, temperature, 1); // write the new scalable (* 0.88 + 45) data to the next available array position currentTemperature_Y[currentTemperature_X] = (char)(temperature * 0.88 + 45); // start FT800 display list StartDL(); // draw bottom color for graph line (*_TFT).DL(COLOR_RGB(200, 177, 199)); (*_TFT).DL(BEGIN(EDGE_STRIP_B)); for (int i = 0; i < 68; i++) { if (currentTemperature_Y[i] != 0 && i <= currentTemperature_X) { (*_TFT).DL(VERTEX2F((i * accelerator + 15) * 16, (220 - currentTemperature_Y[i]) * 16)); } } // draw horisontal grid for temperature (-50 .. +125) HorisontalGrid_Current_Temperature(); // draw main graph line (*_TFT).DL(COLOR_RGB(9, 0, 63)); (*_TFT).DL(BEGIN(POINTS)); (*_TFT).DL(POINT_SIZE(25)); for (int i = 0; i < 68; i++) { if (currentTemperature_Y[i] != 0 && (i < currentTemperature_X || i >= currentTemperature_X + 13)) { (*_TFT).DL(VERTEX2F((i * accelerator + 15) * 16, (222 - currentTemperature_Y[i]) * 16)); } } // draw subtitle for main graph line (*_TFT).DL(COLOR_RGB(255, 255, 255)); (*_TFT).DL(BEGIN(RECTS)); (*_TFT).DL(VERTEX2II((currentTemperature_X * accelerator + 40) + 25, (200 - currentTemperature_Y[currentTemperature_X]), 0, 0)); (*_TFT).DL(VERTEX2II((currentTemperature_X * accelerator + 40), (177 - currentTemperature_Y[currentTemperature_X]), 0, 0)); (*_TFT).DL(COLOR_RGB(255, 0, 0)); (*_TFT).Text((currentTemperature_X * accelerator + 25), (173 - currentTemperature_Y[currentTemperature_X]), 28, 0, temperatureStr); (*_TFT).Text((currentTemperature_X * accelerator + 25) + (degreeOffset * 8 + 3), (173 - currentTemperature_Y[currentTemperature_X]) - 4, 20, 0, "o"); (*_TFT).DL(BEGIN(LINES)); (*_TFT).DL(LINE_WIDTH(8)); (*_TFT).DL(VERTEX2F((currentTemperature_X * accelerator + 15) * 16, (220 - currentTemperature_Y[currentTemperature_X]) * 16)); (*_TFT).DL(VERTEX2F((currentTemperature_X * accelerator + 35) * 16, (200 - currentTemperature_Y[currentTemperature_X]) * 16)); (*_TFT).DL(COLOR_RGB(255, 30, 33)); (*_TFT).DL(BEGIN(POINTS)); (*_TFT).DL(POINT_SIZE(33)); (*_TFT).DL(VERTEX2F((currentTemperature_X * accelerator + 15) * 16, (220 - currentTemperature_Y[currentTemperature_X]) * 16)); (*_TFT).DL(END()); // write main title (*_TFT).DL(COLOR_RGB(0, 0, 0)); CreateStringRussian("Температура"); (*_TFT).Text(15, 15, 3, 0, russianStr); // clean the space under the plot, create link to the main menu (*_TFT).DL(SCISSOR_XY(15, 225)); (*_TFT).DL(SCISSOR_SIZE(420, 53)); (*_TFT).Gradient(0, 256, 0xFFFFFF, 450, 16, 0xFFFFFF); MainMenuReference(); // finish FT800 display list FinishDL(); if (currentTemperature_X >= 68) { currentTemperature_X = 0; } else { currentTemperature_X ++; } if (pressedButton == MENU_PRESS) { for (int i = 0; i < 68; i++) { currentTemperature_Y[i] = 0; currentTemperature_X = 0; } } }