Zoltan Hudak / Mbed 2 deprecated STM32F103C8T6_Nokia5110

Demo for STM32F103C8T6 with a Nokia 5110 LCD.

Dependencies:   mbed N5110

Nokia 5110 LCD driven by STM32F103C8T6 board

This is a fork of Craig Evans' example program using his N5110 library.

Schematic

/media/uploads/hudakz/stm32f103c8t6_nokia5110_02.png

Wiring

STM32F103C8T6Nokia 5110
GND<=>GND
PA_10<R1>LIGHT
PA_9<=>VCC
PB_3<=>CLK
PB_5<=>DIN
PA_15<=>DC
PA_11<=>CE
PA_12<=>RST

main.cpp@2:2bab15094d3d, 2019-02-05 (annotated)

Committer:
hudakz
Date:
Tue Feb 05 13:53:22 2019 +0000
Revision:
2:2bab15094d3d
Parent:
1:a5480500307f 
Updated.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
hudakz 0:1be8870a132e 1 /*
hudakz 0:1be8870a132e 2 * Nokia 5110 LCD demo
hudakz 0:1be8870a132e 3 */
hudakz 0:1be8870a132e 4 #include "mbed.h"
hudakz 0:1be8870a132e 5 #include "N5110.h"
hudakz 0:1be8870a132e 6
hudakz 0:1be8870a132e 7 N5110 lcd(PA_9, PA_11, PA_12, PA_15, PB_5, PB_3, PA_10); // VCC, CE, RST, DC, DIN, CLK, LIGHT
hudakz 0:1be8870a132e 8
hudakz 0:1be8870a132e 9 int main()
hudakz 0:1be8870a132e 10 {
hudakz 0:1be8870a132e 11 lcd.init(); // first need to initialise display
hudakz 0:1be8870a132e 12
hudakz 0:1be8870a132e 13 while(1) {
hudakz 0:1be8870a132e 14
hudakz 0:1be8870a132e 15 // these are default settings so not strictly needed
hudakz 0:1be8870a132e 16 lcd.normalMode(); // normal colour mode
hudakz 0:1be8870a132e 17 lcd.setBrightness(0.5); // put LED backlight on 50%
hudakz 0:1be8870a132e 18
hudakz 0:1be8870a132e 19 // can directly print strings at specified co-ordinates
hudakz 0:1be8870a132e 20 lcd.printString("Hello, World!",0,0);
hudakz 0:1be8870a132e 21
hudakz 0:1be8870a132e 22 char buffer[14]; // each character is 6 pixels wide, screen is 84 pixels (84/6 = 14)
hudakz 0:1be8870a132e 23 // so can display a string of a maximum 14 characters in length
hudakz 0:1be8870a132e 24 // or create formatted strings - ensure they aren't more than 14 characters long
hudakz 0:1be8870a132e 25 int temperature = 27;
hudakz 0:1be8870a132e 26 int length = sprintf(buffer,"T = %2d C",temperature); // print formatted data to buffer
hudakz 0:1be8870a132e 27 // it is important the format specifier ensures the length will fit in the buffer
hudakz 0:1be8870a132e 28 if (length <= 14) // if string will fit on display
hudakz 0:1be8870a132e 29 lcd.printString(buffer,0,1); // display on screen
hudakz 0:1be8870a132e 30
hudakz 0:1be8870a132e 31 float pressure = 1012.3; // same idea with floats
hudakz 0:1be8870a132e 32 length = sprintf(buffer,"P = %.2f mb",pressure);
hudakz 0:1be8870a132e 33 if (length <= 14)
hudakz 0:1be8870a132e 34 lcd.printString(buffer,0,2);
hudakz 0:1be8870a132e 35
hudakz 0:1be8870a132e 36 // can also print individual characters at specified place
hudakz 0:1be8870a132e 37 lcd.printChar('X',5,3);
hudakz 0:1be8870a132e 38
hudakz 0:1be8870a132e 39 // draw a line across the display at y = 40 pixels (origin top-left)
hudakz 0:1be8870a132e 40 for (int i = 0; i < WIDTH; i++) {
hudakz 0:1be8870a132e 41 lcd.setPixel(i,40);
hudakz 0:1be8870a132e 42 }
hudakz 0:1be8870a132e 43 // need to refresh display after setting pixels
hudakz 0:1be8870a132e 44 lcd.refresh();
hudakz 0:1be8870a132e 45
hudakz 0:1be8870a132e 46 // can also check status of pixels using getPixel(x,y)
hudakz 0:1be8870a132e 47
hudakz 0:1be8870a132e 48 wait(5.0);
hudakz 0:1be8870a132e 49 lcd.clear(); // clear display
hudakz 0:1be8870a132e 50 lcd.inverseMode(); // invert colours
hudakz 0:1be8870a132e 51 lcd.setBrightness(1.0); // put LED backlight on full
hudakz 0:1be8870a132e 52
hudakz 0:1be8870a132e 53 float array[84];
hudakz 0:1be8870a132e 54
hudakz 0:1be8870a132e 55 for (int i = 0; i < 84; i++) {
hudakz 0:1be8870a132e 56 array[i] = 0.5 + 0.5*sin(i*2*3.14/84);
hudakz 0:1be8870a132e 57 }
hudakz 0:1be8870a132e 58
hudakz 0:1be8870a132e 59 // can also plot graphs - 84 elements only
hudakz 0:1be8870a132e 60 // values must be in range 0.0 - 1.0
hudakz 0:1be8870a132e 61 lcd.plotArray(array);
hudakz 0:1be8870a132e 62 wait(5.0);
hudakz 0:1be8870a132e 63 lcd.clear();
hudakz 0:1be8870a132e 64 lcd.normalMode(); // normal colour mode back
hudakz 0:1be8870a132e 65 lcd.setBrightness(0.5); // put LED backlight on 50%
hudakz 0:1be8870a132e 66
hudakz 0:1be8870a132e 67 // example of drawing lines
hudakz 0:1be8870a132e 68 for (int x = 0; x < WIDTH ; x+=10) {
hudakz 0:1be8870a132e 69 // x0,y0,x1,y1,type 0-white,1-black,2-dotted
hudakz 0:1be8870a132e 70 lcd.drawLine(0,0,x,HEIGHT,2);
hudakz 0:1be8870a132e 71 }
hudakz 0:1be8870a132e 72 lcd.refresh(); // need to refresh screen after drawing lines
hudakz 0:1be8870a132e 73
hudakz 0:1be8870a132e 74 wait(5.0);
hudakz 0:1be8870a132e 75 lcd.clear();
hudakz 0:1be8870a132e 76
hudakz 0:1be8870a132e 77 // example of how to draw circles
hudakz 1:a5480500307f 78 lcd.drawCircle(WIDTH/2,HEIGHT/2,20,FILL_BLACK); // x,y,radius,black fill
hudakz 1:a5480500307f 79 lcd.drawCircle(WIDTH/2,HEIGHT/2,10,FILL_WHITE); // x,y,radius,white fill
hudakz 1:a5480500307f 80 lcd.drawCircle(WIDTH/2,HEIGHT/2,30,FILL_TRANSPARENT); // x,y,radius,transparent with outline
hudakz 0:1be8870a132e 81 lcd.refresh(); // need to refresh screen after drawing circles
hudakz 0:1be8870a132e 82
hudakz 0:1be8870a132e 83 wait(5.0);
hudakz 0:1be8870a132e 84 lcd.clear();
hudakz 0:1be8870a132e 85
hudakz 0:1be8870a132e 86 // example of how to draw rectangles
hudakz 0:1be8870a132e 87 // origin x,y,width,height,type
hudakz 1:a5480500307f 88 lcd.drawRect(10,10,50,30,FILL_BLACK); // filled black rectangle
hudakz 1:a5480500307f 89 lcd.drawRect(15,15,20,10,FILL_WHITE); // filled white rectange (no outline)
hudakz 1:a5480500307f 90 lcd.drawRect(2,2,70,40,FILL_TRANSPARENT); // transparent, just outline
hudakz 0:1be8870a132e 91 lcd.refresh(); // need to refresh screen after drawing rects
hudakz 0:1be8870a132e 92
hudakz 0:1be8870a132e 93 wait(5.0);
hudakz 0:1be8870a132e 94 lcd.clear();
hudakz 0:1be8870a132e 95 }
hudakz 0:1be8870a132e 96 }