Ksenia Kondrashova / Mbed 2 deprecated Temp_&_RH_at_TFT_with_touchscreen

[SIMPLE PROGRAM] HYT humidity & temp sensor polling / showing received data at TFT with capacitive touchscreen

Dependencies:   FT800_2 HYT mbed

HYT humidity and temperature sensor polling & showing received data at TFT via graphical controller FT800/FT801.

Hardware

For documentation on the FT800 library, please refer to the library pages.

Connection

MCU-board to TFT-module

MCU-board is connected to TFT-module via Break Out Board. You need 6 signals to connect: SCK, MOSI and MISO are connected to a SPI channel, SS is the chip select signal, PD work as powerdown and INT for interrupts from TFT to MCU.

/media/uploads/Ksenia/4_-22-.jpg

You have to connect VDD to BLVDD at Break Out Board if you use the board:

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

MCU-board to HYT sensor

MCU-board is connected to sensor via I2C. Remember to use pull-up resisrors there:

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

Подробнее в статьях Как перестать бояться и полюбить mbed [Часть 1 - 5] на https://habrahabr.ru/users/uuuulala/topics/

TFT/display.Draw_CurrentValuesGraphs.cpp@1:e20b5da0c912, 2016-10-05 (annotated)

Committer:
Ksenia
Date:
Wed Oct 05 10:06:54 2016 +0000
Revision:
1:e20b5da0c912
Parent:
0:1f5444f2977d 
Changed wrong comment in GetTouch function

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Ksenia 0:1f5444f2977d 1 #include "display.h"
Ksenia 0:1f5444f2977d 2
Ksenia 0:1f5444f2977d 3 /**************************************************************************************************************************
Ksenia 0:1f5444f2977d 4 ************************** Display real-time humidity *********************************************************************
Ksenia 0:1f5444f2977d 5 **************************************************************************************************************************/
Ksenia 0:1f5444f2977d 6 void Display::CurrentHumidity(float humidity)
Ksenia 0:1f5444f2977d 7 {
Ksenia 0:1f5444f2977d 8 // accelerator for x-axis data output
Ksenia 0:1f5444f2977d 9 char accelerator = 6;
Ksenia 0:1f5444f2977d 10 // create string including current humididty and " %"
Ksenia 0:1f5444f2977d 11 CreateStringTempHum(humidityStr, humidity, 0);
Ksenia 0:1f5444f2977d 12 // write the new scalable (* 1.5) data to the next available array position
Ksenia 0:1f5444f2977d 13 currentHumidity_Y[currentHumidity_X] = (char)(humidity * 1.5);
Ksenia 0:1f5444f2977d 14
Ksenia 0:1f5444f2977d 15 // start FT800 display list
Ksenia 0:1f5444f2977d 16 StartDL();
Ksenia 0:1f5444f2977d 17
Ksenia 0:1f5444f2977d 18 // draw bottom color for graph line
Ksenia 0:1f5444f2977d 19 (*_TFT).DL(COLOR_RGB(200, 200, 200));
Ksenia 0:1f5444f2977d 20 (*_TFT).DL(BEGIN(EDGE_STRIP_B));
Ksenia 0:1f5444f2977d 21 for (int i = 0; i < 68; i++) {
Ksenia 0:1f5444f2977d 22 if (currentHumidity_Y[i] != 0 && i <= currentHumidity_X) {
Ksenia 0:1f5444f2977d 23 (*_TFT).DL(VERTEX2F((i * accelerator + 15) * 16, (220 - currentHumidity_Y[i]) * 16));
Ksenia 0:1f5444f2977d 24 }
Ksenia 0:1f5444f2977d 25 }
Ksenia 0:1f5444f2977d 26
Ksenia 0:1f5444f2977d 27 // draw horisontal grid for humidity (0 .. 100)
Ksenia 0:1f5444f2977d 28 HorisontalGrid_CurrentHumidity();
Ksenia 0:1f5444f2977d 29
Ksenia 0:1f5444f2977d 30 // draw main graph line
Ksenia 0:1f5444f2977d 31 (*_TFT).DL(COLOR_RGB(9, 0, 63));
Ksenia 0:1f5444f2977d 32 (*_TFT).DL(BEGIN(POINTS));
Ksenia 0:1f5444f2977d 33 (*_TFT).DL(POINT_SIZE(25));
Ksenia 0:1f5444f2977d 34 for (int i = 0; i < 68; i++) {
Ksenia 0:1f5444f2977d 35 if (currentHumidity_Y[i] != 0 && (i < currentHumidity_X || i >= currentHumidity_X + 13)) {
Ksenia 0:1f5444f2977d 36 (*_TFT).DL(VERTEX2F((i * accelerator + 15) * 16, (222 - currentHumidity_Y[i]) * 16));
Ksenia 0:1f5444f2977d 37 }
Ksenia 0:1f5444f2977d 38 }
Ksenia 0:1f5444f2977d 39
Ksenia 0:1f5444f2977d 40 // draw subtitle for main graph line
Ksenia 0:1f5444f2977d 41 (*_TFT).DL(COLOR_RGB(255, 255, 255));
Ksenia 0:1f5444f2977d 42 (*_TFT).DL(BEGIN(RECTS));
Ksenia 0:1f5444f2977d 43 (*_TFT).DL(VERTEX2II((currentHumidity_X * accelerator + 40) + 25, (200 - currentHumidity_Y[currentHumidity_X]), 0, 0));
Ksenia 0:1f5444f2977d 44 (*_TFT).DL(VERTEX2II((currentHumidity_X * accelerator + 40), (177 - currentHumidity_Y[currentHumidity_X]), 0, 0));
Ksenia 0:1f5444f2977d 45 (*_TFT).DL(COLOR_RGB(255, 0, 0));
Ksenia 0:1f5444f2977d 46 (*_TFT).Text((currentHumidity_X * accelerator + 30), (180 - currentHumidity_Y[currentHumidity_X] - 7), 28, 0, humidityStr);
Ksenia 0:1f5444f2977d 47 (*_TFT).DL(BEGIN(LINES));
Ksenia 0:1f5444f2977d 48 (*_TFT).DL(LINE_WIDTH(8));
Ksenia 0:1f5444f2977d 49 (*_TFT).DL(VERTEX2F((currentHumidity_X * accelerator + 15) * 16, (220 - currentHumidity_Y[currentHumidity_X]) * 16));
Ksenia 0:1f5444f2977d 50 (*_TFT).DL(VERTEX2F((currentHumidity_X * accelerator + 35) * 16, (200 - currentHumidity_Y[currentHumidity_X]) * 16));
Ksenia 0:1f5444f2977d 51 (*_TFT).DL(COLOR_RGB(255, 30, 33));
Ksenia 0:1f5444f2977d 52 (*_TFT).DL(BEGIN(POINTS));
Ksenia 0:1f5444f2977d 53 (*_TFT).DL(POINT_SIZE(33));
Ksenia 0:1f5444f2977d 54 (*_TFT).DL(VERTEX2F((currentHumidity_X * accelerator + 15) * 16, (220 - currentHumidity_Y[currentHumidity_X]) * 16));
Ksenia 0:1f5444f2977d 55 (*_TFT).DL(END());
Ksenia 0:1f5444f2977d 56
Ksenia 0:1f5444f2977d 57 // write main title
Ksenia 0:1f5444f2977d 58 (*_TFT).DL(COLOR_RGB(0, 0, 0));
Ksenia 0:1f5444f2977d 59 (*_TFT).Text(15, 15, 30, 0, "Current humidity, rH");
Ksenia 0:1f5444f2977d 60
Ksenia 0:1f5444f2977d 61 // clean the space under the plot, create link to the main menu
Ksenia 0:1f5444f2977d 62 (*_TFT).DL(SCISSOR_XY(15, 222));
Ksenia 0:1f5444f2977d 63 (*_TFT).DL(SCISSOR_SIZE(420, 53));
Ksenia 0:1f5444f2977d 64 (*_TFT).Gradient(0, 256, 0xFFFFFF, 450, 16, 0xFFFFFF);
Ksenia 0:1f5444f2977d 65 MainMenuReference();
Ksenia 0:1f5444f2977d 66
Ksenia 0:1f5444f2977d 67 // finish FT801 display list
Ksenia 0:1f5444f2977d 68 FinishDL();
Ksenia 0:1f5444f2977d 69
Ksenia 0:1f5444f2977d 70 // manage the index for array
Ksenia 0:1f5444f2977d 71 if (currentHumidity_X >= 68) {
Ksenia 0:1f5444f2977d 72 currentHumidity_X = 0;
Ksenia 0:1f5444f2977d 73 } else {
Ksenia 0:1f5444f2977d 74 currentHumidity_X ++;
Ksenia 0:1f5444f2977d 75 }
Ksenia 0:1f5444f2977d 76 if (pressedButton == MENU_PRESS) {
Ksenia 0:1f5444f2977d 77 for (int i = 0; i < 68; i++) {
Ksenia 0:1f5444f2977d 78 currentHumidity_Y[i] = 0;
Ksenia 0:1f5444f2977d 79 currentHumidity_X = 0;
Ksenia 0:1f5444f2977d 80 }
Ksenia 0:1f5444f2977d 81 }
Ksenia 0:1f5444f2977d 82 }
Ksenia 0:1f5444f2977d 83
Ksenia 0:1f5444f2977d 84 /**************************************************************************************************************************
Ksenia 0:1f5444f2977d 85 ************************** Display real-time temperature ******************************************************************
Ksenia 0:1f5444f2977d 86 **************************************************************************************************************************/
Ksenia 0:1f5444f2977d 87 void Display::CurrentTemperature(float temperature)
Ksenia 0:1f5444f2977d 88 {
Ksenia 0:1f5444f2977d 89 // accelerator for x-axis data output
Ksenia 0:1f5444f2977d 90 char accelerator = 6;
Ksenia 0:1f5444f2977d 91 // create string including current temperature with decimal mark and " С"
Ksenia 0:1f5444f2977d 92 CreateStringTempHum(temperatureStr, temperature, 1);
Ksenia 0:1f5444f2977d 93 // write the new scalable (* 0.88 + 45) data to the next available array position
Ksenia 0:1f5444f2977d 94 currentTemperature_Y[currentTemperature_X] = (char)(temperature * 0.88 + 45);
Ksenia 0:1f5444f2977d 95
Ksenia 0:1f5444f2977d 96 // start FT800 display list
Ksenia 0:1f5444f2977d 97 StartDL();
Ksenia 0:1f5444f2977d 98
Ksenia 0:1f5444f2977d 99 // draw bottom color for graph line
Ksenia 0:1f5444f2977d 100 (*_TFT).DL(COLOR_RGB(200, 177, 199));
Ksenia 0:1f5444f2977d 101 (*_TFT).DL(BEGIN(EDGE_STRIP_B));
Ksenia 0:1f5444f2977d 102 for (int i = 0; i < 68; i++) {
Ksenia 0:1f5444f2977d 103 if (currentTemperature_Y[i] != 0 && i <= currentTemperature_X) {
Ksenia 0:1f5444f2977d 104 (*_TFT).DL(VERTEX2F((i * accelerator + 15) * 16, (220 - currentTemperature_Y[i]) * 16));
Ksenia 0:1f5444f2977d 105 }
Ksenia 0:1f5444f2977d 106 }
Ksenia 0:1f5444f2977d 107
Ksenia 0:1f5444f2977d 108 // draw horisontal grid for temperature (-50 .. +125)
Ksenia 0:1f5444f2977d 109 HorisontalGrid_CurrentTemp();
Ksenia 0:1f5444f2977d 110
Ksenia 0:1f5444f2977d 111 // draw main graph line
Ksenia 0:1f5444f2977d 112 (*_TFT).DL(COLOR_RGB(9, 0, 63));
Ksenia 0:1f5444f2977d 113 (*_TFT).DL(BEGIN(POINTS));
Ksenia 0:1f5444f2977d 114 (*_TFT).DL(POINT_SIZE(25));
Ksenia 0:1f5444f2977d 115 for (int i = 0; i < 68; i++) {
Ksenia 0:1f5444f2977d 116 if (currentTemperature_Y[i] != 0 && (i < currentTemperature_X || i >= currentTemperature_X + 13)) {
Ksenia 0:1f5444f2977d 117 (*_TFT).DL(VERTEX2F((i * accelerator + 15) * 16, (222 - currentTemperature_Y[i]) * 16));
Ksenia 0:1f5444f2977d 118 }
Ksenia 0:1f5444f2977d 119 }
Ksenia 0:1f5444f2977d 120
Ksenia 0:1f5444f2977d 121 // draw subtitle for main graph line
Ksenia 0:1f5444f2977d 122 (*_TFT).DL(COLOR_RGB(255, 255, 255));
Ksenia 0:1f5444f2977d 123 (*_TFT).DL(BEGIN(RECTS));
Ksenia 0:1f5444f2977d 124 (*_TFT).DL(VERTEX2II((currentTemperature_X * accelerator + 40) + 25, (200 - currentTemperature_Y[currentTemperature_X]), 0, 0));
Ksenia 0:1f5444f2977d 125 (*_TFT).DL(VERTEX2II((currentTemperature_X * accelerator + 40), (177 - currentTemperature_Y[currentTemperature_X]), 0, 0));
Ksenia 0:1f5444f2977d 126 (*_TFT).DL(COLOR_RGB(255, 0, 0));
Ksenia 0:1f5444f2977d 127 (*_TFT).Text((currentTemperature_X * accelerator + 25), (173 - currentTemperature_Y[currentTemperature_X]), 28, 0, temperatureStr);
Ksenia 0:1f5444f2977d 128 (*_TFT).DL(BEGIN(LINES));
Ksenia 0:1f5444f2977d 129 (*_TFT).DL(LINE_WIDTH(8));
Ksenia 0:1f5444f2977d 130 (*_TFT).DL(VERTEX2F((currentTemperature_X * accelerator + 15) * 16, (220 - currentTemperature_Y[currentTemperature_X]) * 16));
Ksenia 0:1f5444f2977d 131 (*_TFT).DL(VERTEX2F((currentTemperature_X * accelerator + 35) * 16, (200 - currentTemperature_Y[currentTemperature_X]) * 16));
Ksenia 0:1f5444f2977d 132 (*_TFT).DL(COLOR_RGB(255, 30, 33));
Ksenia 0:1f5444f2977d 133 (*_TFT).DL(BEGIN(POINTS));
Ksenia 0:1f5444f2977d 134 (*_TFT).DL(POINT_SIZE(33));
Ksenia 0:1f5444f2977d 135 (*_TFT).DL(VERTEX2F((currentTemperature_X * accelerator + 15) * 16, (220 - currentTemperature_Y[currentTemperature_X]) * 16));
Ksenia 0:1f5444f2977d 136 (*_TFT).DL(END());
Ksenia 0:1f5444f2977d 137
Ksenia 0:1f5444f2977d 138 // write main title
Ksenia 0:1f5444f2977d 139 (*_TFT).DL(COLOR_RGB(0, 0, 0));
Ksenia 0:1f5444f2977d 140 (*_TFT).Text(15, 15, 30, 0, "Current temperature");
Ksenia 0:1f5444f2977d 141
Ksenia 0:1f5444f2977d 142 // clean the space under the plot, create link to the main menu
Ksenia 0:1f5444f2977d 143 (*_TFT).DL(SCISSOR_XY(15, 225));
Ksenia 0:1f5444f2977d 144 (*_TFT).DL(SCISSOR_SIZE(420, 53));
Ksenia 0:1f5444f2977d 145 (*_TFT).Gradient(0, 256, 0xFFFFFF, 450, 16, 0xFFFFFF);
Ksenia 0:1f5444f2977d 146 MainMenuReference();
Ksenia 0:1f5444f2977d 147
Ksenia 0:1f5444f2977d 148 // finish FT801 display list
Ksenia 0:1f5444f2977d 149 FinishDL();
Ksenia 0:1f5444f2977d 150
Ksenia 0:1f5444f2977d 151 // manage the index for array
Ksenia 0:1f5444f2977d 152 if (currentTemperature_X >= 68) {
Ksenia 0:1f5444f2977d 153 currentTemperature_X = 0;
Ksenia 0:1f5444f2977d 154 } else {
Ksenia 0:1f5444f2977d 155 currentTemperature_X ++;
Ksenia 0:1f5444f2977d 156 }
Ksenia 0:1f5444f2977d 157 if (pressedButton == MENU_PRESS) {
Ksenia 0:1f5444f2977d 158 for (int i = 0; i < 68; i++) {
Ksenia 0:1f5444f2977d 159 currentTemperature_Y[i] = 0;
Ksenia 0:1f5444f2977d 160 currentTemperature_X = 0;
Ksenia 0:1f5444f2977d 161 }
Ksenia 0:1f5444f2977d 162 }
Ksenia 0:1f5444f2977d 163 }