Team Alpha / Mbed 2 deprecated UserIntefaceLCD

LCD implementation of our project.

Dependencies:   mbed mbed-rtos MLX90614

LevelMeter.cpp@6:49a007861c76, 2015-05-30 (annotated)

Committer:
ovidiup13
Date:
Sat May 30 14:58:44 2015 +0000
Revision:
6:49a007861c76
Parent:
5:5b1a8ad6c187
Child:
8:81ed1135ba02
integrated level meter functionality and added 3-way switch control

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ovidiup13 3:688b62ff6474 1 #include "LevelMeter.h"
ovidiup13 3:688b62ff6474 2
ovidiup13 5:5b1a8ad6c187 3 LevelMeter::LevelMeter(ST7565 *lcd, Item * back)
ovidiup13 5:5b1a8ad6c187 4 {
ovidiup13 5:5b1a8ad6c187 5 this->st7565 = lcd;
ovidiup13 5:5b1a8ad6c187 6 this->title = " Level meter";
ovidiup13 5:5b1a8ad6c187 7 this->back = back;
ovidiup13 5:5b1a8ad6c187 8 lt = NULL;
ovidiup13 5:5b1a8ad6c187 9 }
ovidiup13 5:5b1a8ad6c187 10
ovidiup13 5:5b1a8ad6c187 11 void LevelMeter::display(void)
ovidiup13 5:5b1a8ad6c187 12 {
ovidiup13 5:5b1a8ad6c187 13 //create a new thread to get and update compass - do later
ovidiup13 5:5b1a8ad6c187 14 if(lt != NULL) return;//thread is already running
ovidiup13 5:5b1a8ad6c187 15 lt = new Thread(&LevelMeter::lt_start, this);
ovidiup13 5:5b1a8ad6c187 16 lt->signal_set(START_THREAD);
ovidiup13 3:688b62ff6474 17 }
ovidiup13 3:688b62ff6474 18
ovidiup13 5:5b1a8ad6c187 19 //trigger for starting the thread
ovidiup13 5:5b1a8ad6c187 20 void LevelMeter::lt_start(void const *args)
ovidiup13 5:5b1a8ad6c187 21 {
ovidiup13 5:5b1a8ad6c187 22 LevelMeter *l = (LevelMeter*)args;
ovidiup13 5:5b1a8ad6c187 23 l->update_cross();
ovidiup13 3:688b62ff6474 24 }
ovidiup13 3:688b62ff6474 25
ovidiup13 5:5b1a8ad6c187 26 void LevelMeter::update_cross()
ovidiup13 5:5b1a8ad6c187 27 {
ovidiup13 5:5b1a8ad6c187 28 lt->signal_wait(START_THREAD); //wait for signal to start thread
ovidiup13 6:49a007861c76 29 initSensors();
ovidiup13 6:49a007861c76 30 Result_avrg result;
ovidiup13 5:5b1a8ad6c187 31 //draw the static circle
ovidiup13 6:49a007861c76 32 //int i = 0, j = 0;
ovidiup13 5:5b1a8ad6c187 33 while(true) {
ovidiup13 6:49a007861c76 34 calc_avrg_or(&result,2);
ovidiup13 6:49a007861c76 35 draw_elements(result.x, result.y);
ovidiup13 6:49a007861c76 36 //printf("%0.0f, %0.0f\n", result.x, result.y);
ovidiup13 6:49a007861c76 37 Thread::wait(15);
ovidiup13 5:5b1a8ad6c187 38 st7565->clear();
ovidiup13 5:5b1a8ad6c187 39 }
ovidiup13 5:5b1a8ad6c187 40 }
ovidiup13 5:5b1a8ad6c187 41
ovidiup13 5:5b1a8ad6c187 42 void LevelMeter::draw_elements(double rx, double ry){
ovidiup13 5:5b1a8ad6c187 43 int cross_x, cross_y;
ovidiup13 3:688b62ff6474 44
ovidiup13 3:688b62ff6474 45 //draw the circles
ovidiup13 5:5b1a8ad6c187 46 st7565->drawcircle(X0, Y0, RADIUS_lvl, 1);
ovidiup13 5:5b1a8ad6c187 47
ovidiup13 5:5b1a8ad6c187 48 //draw middle cross
ovidiup13 3:688b62ff6474 49 st7565->drawline(X0 - 2, Y0, X0 + 2, Y0, 20);
ovidiup13 3:688b62ff6474 50 st7565->drawline(X0, Y0 - 2, X0, Y0 + 2, 20);
ovidiup13 3:688b62ff6474 51
ovidiup13 5:5b1a8ad6c187 52 //check if rotation in negative interval
ovidiup13 5:5b1a8ad6c187 53 if(rx >= 270) rx -= 360;
ovidiup13 5:5b1a8ad6c187 54 if(ry >= 270) ry -= 360;
ovidiup13 5:5b1a8ad6c187 55
ovidiup13 5:5b1a8ad6c187 56 //calculate coordinates
ovidiup13 6:49a007861c76 57 cross_x = (int) ((2*rx * SCREEN_WIDTH)/360.0) + X0;
ovidiup13 6:49a007861c76 58 cross_y = (int) ((2*ry * SCREEN_HEIGHT)/360.0) + Y0;
ovidiup13 5:5b1a8ad6c187 59
ovidiup13 6:49a007861c76 60 //printf("Coordinates for cross are: %d, %d\n", cross_x, cross_y);
ovidiup13 5:5b1a8ad6c187 61
ovidiup13 5:5b1a8ad6c187 62 //draw the cross
ovidiup13 6:49a007861c76 63 st7565->drawline(cross_x, cross_y - RADIUS_lvl*3, cross_x, cross_y + RADIUS_lvl*3, DEFAULT_COLOR);
ovidiup13 6:49a007861c76 64 st7565->drawline(cross_x - RADIUS_lvl*3, cross_y, cross_x + RADIUS_lvl*3, cross_y, DEFAULT_COLOR);
ovidiup13 6:49a007861c76 65
ovidiup13 6:49a007861c76 66 //draw results
ovidiup13 6:49a007861c76 67 char *rsx = (char*)malloc(sizeof(char)*7);
ovidiup13 6:49a007861c76 68 char *rsy = (char*)malloc(sizeof(char)*7);
ovidiup13 6:49a007861c76 69 sprintf(rsx, "X: %0.0f", rx);
ovidiup13 6:49a007861c76 70 sprintf(rsy, "Y: %0.0f", ry);
ovidiup13 6:49a007861c76 71 st7565->drawstring(3, 7, rsx);
ovidiup13 6:49a007861c76 72 st7565->drawstring(SCREEN_WIDTH - 38, 7, rsy);
ovidiup13 5:5b1a8ad6c187 73
ovidiup13 5:5b1a8ad6c187 74 //display
ovidiup13 3:688b62ff6474 75 st7565->display();
ovidiup13 5:5b1a8ad6c187 76 }
ovidiup13 5:5b1a8ad6c187 77
ovidiup13 5:5b1a8ad6c187 78 void LevelMeter::update(char c)
ovidiup13 5:5b1a8ad6c187 79 {
ovidiup13 5:5b1a8ad6c187 80 if(c == 'y') {
ovidiup13 5:5b1a8ad6c187 81 lt->terminate();
ovidiup13 5:5b1a8ad6c187 82 free(lt); lt = NULL;
ovidiup13 5:5b1a8ad6c187 83 st7565->clear();
ovidiup13 5:5b1a8ad6c187 84 this->setSelectedScreen(back);
ovidiup13 5:5b1a8ad6c187 85 }
ovidiup13 3:688b62ff6474 86 }