Motoo Tanaka / Mbed 2 deprecated tester

A simple meter using Adafruit 2.8 TFT with touch v2

Dependencies:   SPI_STMPE610 UniGraphic mbed vt100

/media/uploads/Rhyme/tester_s.jpg

A dumb simple voltage tester using ADC.
With FRDM-KL25Z, you can measure about 0V to 3.28V.
Nothing to drop your jaw nor holding your breath
but I wanted one, so I wrote one ;-)

とても単純はADCを使用した電圧テスターです。
FRDM-KL25Z を使用した場合、0V ～ 3.28V くらいが測定範囲です。
特に目新しいことも、驚くこともありませんが、
自分が欲しいので書いてみました (^ - ^)

On 18-May-2018　
I changed the number display from 0.00 to 0.000
so that I can measure the change of a small loadcell.

2018年5月18日　
ロードセル (重量センサ)の出力値の変化を見たかったので
有効数字を小数点以下2桁から3桁に変更しました。

meter.cpp@2:204e60dbd73d, 2017-07-21 (annotated)

Committer:
Rhyme
Date:
Fri Jul 21 01:24:53 2017 +0000
Revision:
2:204e60dbd73d
Parent:
1:d7f2aa328962
Child:
3:bf8761c8eb17
organizing index count for theta (on going)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Rhyme 0:d01def9cf41e 1 #include "mbed.h"
Rhyme 0:d01def9cf41e 2 #include <math.h>
Rhyme 0:d01def9cf41e 3 #include <string.h>
Rhyme 0:d01def9cf41e 4 #include "ILI9341.h"
Rhyme 0:d01def9cf41e 5 #include "Arial12x12.h"
Rhyme 0:d01def9cf41e 6 #include "Arial24x23.h"
Rhyme 0:d01def9cf41e 7 #include "Arial28x28.h"
Rhyme 0:d01def9cf41e 8 #include "Arial43x48_numb.h"
Rhyme 0:d01def9cf41e 9 #include "SPI_STMPE610.h"
Rhyme 0:d01def9cf41e 10 #include "meter.h"
Rhyme 0:d01def9cf41e 11 #include "vt100.h"
Rhyme 0:d01def9cf41e 12 #include "main.h"
Rhyme 0:d01def9cf41e 13
Rhyme 0:d01def9cf41e 14 #ifndef M_PI
Rhyme 0:d01def9cf41e 15 #define M_PI 3.141593
Rhyme 0:d01def9cf41e 16 #endif
Rhyme 0:d01def9cf41e 17
Rhyme 0:d01def9cf41e 18 extern vt100 *tty ;
Rhyme 0:d01def9cf41e 19 extern ILI9341 *tft ;
Rhyme 0:d01def9cf41e 20 extern SPI_STMPE610 *tsc ;
Rhyme 0:d01def9cf41e 21 extern meter *tacho ;
Rhyme 0:d01def9cf41e 22 double SIN[451] ;
Rhyme 0:d01def9cf41e 23 double COS[451] ;
Rhyme 0:d01def9cf41e 24
Rhyme 0:d01def9cf41e 25 static void fillTriTable(void)
Rhyme 0:d01def9cf41e 26 {
Rhyme 0:d01def9cf41e 27 double theta ;
Rhyme 0:d01def9cf41e 28 int i ;
Rhyme 1:d7f2aa328962 29 for (i = 0 ; i <= 450 ; i++ ) {
Rhyme 0:d01def9cf41e 30 theta = M_PI * (((double)(i + 450))/1800.0) ;
Rhyme 0:d01def9cf41e 31 SIN[i] = sin( theta ) ;
Rhyme 0:d01def9cf41e 32 COS[i] = cos( theta ) ;
Rhyme 0:d01def9cf41e 33 }
Rhyme 0:d01def9cf41e 34 }
Rhyme 0:d01def9cf41e 35
Rhyme 0:d01def9cf41e 36 meter::meter(int x, int y, int width, int height, float min, float max)
Rhyme 0:d01def9cf41e 37 {
Rhyme 0:d01def9cf41e 38 _x = x ;
Rhyme 0:d01def9cf41e 39 _y = y ;
Rhyme 0:d01def9cf41e 40 _w = width ;
Rhyme 0:d01def9cf41e 41 _h = height ;
Rhyme 0:d01def9cf41e 42 _value = min ;
Rhyme 0:d01def9cf41e 43 _min = min ;
Rhyme 0:d01def9cf41e 44 _max = max ;
Rhyme 0:d01def9cf41e 45 _center_x = _x + _w / 2 ;
Rhyme 0:d01def9cf41e 46 _center_y = _y + (2 * _h) / 3 ;
Rhyme 0:d01def9cf41e 47 fillTriTable() ;
Rhyme 0:d01def9cf41e 48 }
Rhyme 0:d01def9cf41e 49
Rhyme 0:d01def9cf41e 50 meter::~meter(void)
Rhyme 0:d01def9cf41e 51 {
Rhyme 0:d01def9cf41e 52 }
Rhyme 0:d01def9cf41e 53
Rhyme 0:d01def9cf41e 54 void meter::drawFrame(void)
Rhyme 0:d01def9cf41e 55 {
Rhyme 0:d01def9cf41e 56 tft->BusEnable(true) ;
Rhyme 0:d01def9cf41e 57 tft->fillrect(_x, _y, _x+ _w - 1, _y+(2 * _h)/3 - 1, White) ;
Rhyme 0:d01def9cf41e 58 tft->fillrect(_x, _y+(2 * _h)/3 - 1, _x + _w - 1, _y + _h - 1, Black) ;
Rhyme 0:d01def9cf41e 59 tft->rect(_x, _y, _x + _w - 1, _y + _h - 1, Green) ;
Rhyme 0:d01def9cf41e 60 tft->BusEnable(false) ;
Rhyme 0:d01def9cf41e 61 }
Rhyme 0:d01def9cf41e 62
Rhyme 0:d01def9cf41e 63 void meter::drawScale(void)
Rhyme 0:d01def9cf41e 64 {
Rhyme 0:d01def9cf41e 65 int x1, x2, y1, y2 ;
Rhyme 0:d01def9cf41e 66 double radius ;
Rhyme 0:d01def9cf41e 67 double append ;
Rhyme 0:d01def9cf41e 68 radius = _w / 2.0 ;
Rhyme 0:d01def9cf41e 69 tft->BusEnable(true) ;
Rhyme 0:d01def9cf41e 70 for (int i = 0 ; i < 450 ; i += 45 ) {
Rhyme 0:d01def9cf41e 71 x1 = (radius * COS[i] + 0.5) ;
Rhyme 0:d01def9cf41e 72 y1 = (radius * SIN[i] + 0.5) ;
Rhyme 0:d01def9cf41e 73 if ((i % 10) == 5) {
Rhyme 0:d01def9cf41e 74 append = 5 ;
Rhyme 0:d01def9cf41e 75 } else {
Rhyme 0:d01def9cf41e 76 append = 10 ;
Rhyme 0:d01def9cf41e 77 }
Rhyme 0:d01def9cf41e 78 x2 = ((radius + append) * COS[i] + 0.5) ;
Rhyme 0:d01def9cf41e 79 y2 = ((radius + append) * SIN[i] + 0.5) ;
Rhyme 0:d01def9cf41e 80 tft->line(_center_x + x1, _center_y - y1, _center_x + x2, _center_y - y2, Black) ;
Rhyme 0:d01def9cf41e 81 tft->line(_center_x - x1, _center_y - y1, _center_x - x2, _center_y - y2, Black) ;
Rhyme 0:d01def9cf41e 82 }
Rhyme 0:d01def9cf41e 83 tft->line(_center_x, _center_y - radius, _center_x, _center_y - (radius + 10), Black) ;
Rhyme 0:d01def9cf41e 84 tft->BusEnable(false) ;
Rhyme 0:d01def9cf41e 85 }
Rhyme 0:d01def9cf41e 86
Rhyme 0:d01def9cf41e 87 void meter::drawHand(float value)
Rhyme 0:d01def9cf41e 88 {
Rhyme 0:d01def9cf41e 89 static int prev_x1 = 0, prev_x2 = 0, prev_y1 = 0, prev_y2 = 0 ;
Rhyme 0:d01def9cf41e 90 int x1, x2, y1, y2 ;
Rhyme 0:d01def9cf41e 91 double theta ;
Rhyme 0:d01def9cf41e 92 double radius = _w / 20.0 ;
Rhyme 0:d01def9cf41e 93 double append = 8.0 * (_w / 20.0) ;
Rhyme 0:d01def9cf41e 94 int i ;
Rhyme 0:d01def9cf41e 95
Rhyme 0:d01def9cf41e 96 theta = 90.0 - (90.0 * (value / _max)) ;
Rhyme 1:d7f2aa328962 97 if (theta < 0.0) { theta = 0.0 ; }
Rhyme 1:d7f2aa328962 98 if (theta > 90.0) { theta = 90.0 ; }
Rhyme 0:d01def9cf41e 99 if (theta > 45.0) {
Rhyme 2:204e60dbd73d 100 i = (10.0 * (90.0 - theta + 45.0) + 0.5) - 450 ;
Rhyme 2:204e60dbd73d 101 x1 = _center_x -(radius * COS[i] + 0.5) ;
Rhyme 2:204e60dbd73d 102 x2 = _center_x -((radius + append) * COS[i] + 0.5) ;
Rhyme 0:d01def9cf41e 103 } else {
Rhyme 2:204e60dbd73d 104 i = (10.0 * (theta + 45.0) + 0.5) - 450 ;
Rhyme 2:204e60dbd73d 105 x1 = _center_x + (radius * COS[i] + 0.5) ;
Rhyme 2:204e60dbd73d 106 x2 = _center_x + ((radius + append) * COS[i] + 0.5) ;
Rhyme 0:d01def9cf41e 107 }
Rhyme 1:d7f2aa328962 108
Rhyme 2:204e60dbd73d 109 y1 = _center_y - (radius * SIN[i] + 0.5) ;
Rhyme 2:204e60dbd73d 110 y2 = _center_y - ((radius + append) * SIN[i] + 0.5) ;
Rhyme 0:d01def9cf41e 111 tft->BusEnable(true) ;
Rhyme 0:d01def9cf41e 112 tft->line(prev_x1, prev_y1, prev_x2, prev_y2, White) ;
Rhyme 0:d01def9cf41e 113 tft->line(x1, y1, x2, y2, Black) ;
Rhyme 0:d01def9cf41e 114 tft->BusEnable(false) ;
Rhyme 0:d01def9cf41e 115 prev_x1 = x1 ;
Rhyme 0:d01def9cf41e 116 prev_x2 = x2 ;
Rhyme 0:d01def9cf41e 117 prev_y1 = y1 ;
Rhyme 0:d01def9cf41e 118 prev_y2 = y2 ;
Rhyme 0:d01def9cf41e 119 }
Rhyme 0:d01def9cf41e 120
Rhyme 0:d01def9cf41e 121 void meter::draw(void)
Rhyme 0:d01def9cf41e 122 {
Rhyme 0:d01def9cf41e 123 }
Rhyme 0:d01def9cf41e 124
Rhyme 0:d01def9cf41e 125 void meter::draw(float value)
Rhyme 0:d01def9cf41e 126 {
Rhyme 0:d01def9cf41e 127 tft->BusEnable(true) ;
Rhyme 0:d01def9cf41e 128 drawHand(_value) ;
Rhyme 0:d01def9cf41e 129 tft->BusEnable(false) ;
Rhyme 0:d01def9cf41e 130 }
Rhyme 0:d01def9cf41e 131
Rhyme 0:d01def9cf41e 132 void meter::drawValue(float value)
Rhyme 0:d01def9cf41e 133 {
Rhyme 0:d01def9cf41e 134 char str[32] ;
Rhyme 0:d01def9cf41e 135 int v1, v2 ;
Rhyme 0:d01def9cf41e 136 v1 = (int)value ;
Rhyme 0:d01def9cf41e 137 v2 = ((int)(100.0 * value) % 100) ;
Rhyme 0:d01def9cf41e 138 sprintf(str, "%d.%02d V", v1, v2) ;
Rhyme 0:d01def9cf41e 139 tft->BusEnable(true) ;
Rhyme 0:d01def9cf41e 140 tft->locate(80, 190) ;
Rhyme 0:d01def9cf41e 141 tft->printf(str) ;
Rhyme 0:d01def9cf41e 142 wait(0.01) ;
Rhyme 0:d01def9cf41e 143 tft->BusEnable(false) ;
Rhyme 0:d01def9cf41e 144 }
Rhyme 0:d01def9cf41e 145
Rhyme 0:d01def9cf41e 146 void meter::update(float value)
Rhyme 0:d01def9cf41e 147 {
Rhyme 0:d01def9cf41e 148 }