Ksenia Kondrashova / Mbed 2 deprecated Temp_&_RH_at_TFT_with_touchscreen-RUS

Русифицированная версия программы для измерения температуры и отн. влажности и вывода информации на сенсорный TFT

Dependencies:   FT800_2 HYT mbed

Компоненты

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:

/media/uploads/Ksenia/4_-5-.jpg

Отладочная плата к датчику серии HYT

К датчику отладочная плата подключается по I2C. Не забываем про подтяжку к питанию:

/media/uploads/Ksenia/freshpaint-20-2016.09.16-10.37.03.png

Демонстрация работы

Процесс создания приложения подробно описан тут: https://habrahabr.ru/users/uuuulala/topics/

Diff: TFT/display.Draw_CurrentValues.cpp

Revision:
0:9db07391e780
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/TFT/display.Draw_CurrentValues.cpp	Fri Oct 07 11:03:16 2016 +0000
@@ -0,0 +1,167 @@
+#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;
+        }
+    }
+}
\ No newline at end of file