(DA) Internet of Things and Smart Electronics- ELE3006M2122 / Mbed 2 deprecated Final_Project_V05_DLeaming_25574043_copy

D. Leaming - 25574043 - Initial Code Updated, Welcome messages added, TMP102 printing to LCD, External PCB buttons connected

Dependencies:   mbed N5110v02 TMP102 JoystickIoT

main.cpp@2:e0091b5311f1, 2021-12-17 (annotated)

Committer:
legstar85
Date:
Fri Dec 17 08:34:45 2021 +0000
Revision:
2:e0091b5311f1
Parent:
1:dd5fb735acf1
Child:
3:80c1eba78f9b
D.Leaming - 25574043 - University of Lincoln - IoT Project - V04

Who changed what in which revision?

UserRevisionLine numberNew contents of line
legstar85 2:e0091b5311f1 1 /* * Print String
legstar85 2:e0091b5311f1 2 * @ File main.cpp
legstar85 2:e0091b5311f1 3 * Prints a string of characters to the screen buffer, string is cut off after the 83rd pixel.
legstar85 2:e0091b5311f1 4 * @param x - the column number (0 to 83)
legstar85 2:e0091b5311f1 5 * @param y - the row number (0-5) - the display is split into 6 banks - each bank can be considered a row
legstar85 2:e0091b5311f1 6 * @author - David Leaming - 25574043
legstar85 2:e0091b5311f1 7 * @ Date - December 2021
legstar85 2:e0091b5311f1 8 *
legstar85 2:e0091b5311f1 9 * Acknowledgements
legstar85 2:e0091b5311f1 10 * Craig A. Evans, University of Leeds, TMP102 Library ,Feb 2016
legstar85 2:e0091b5311f1 11 * Dr Edmond Nurellari, University of Lincoln, Joystick & N5110 Libraries
legstar85 2:e0091b5311f1 12 *
eencae 0:21a200b880d7 13 */
eencae 0:21a200b880d7 14
legstar85 2:e0091b5311f1 15 #include "mbed.h" // include the library header, ensure the library has been imported into the project
eencae 1:dd5fb735acf1 16 #include "TMP102.h"
legstar85 2:e0091b5311f1 17 #include "N5110.h"
legstar85 2:e0091b5311f1 18 #include "Joystick.h"
legstar85 2:e0091b5311f1 19 #include "Bitmap.h"
eencae 0:21a200b880d7 20
legstar85 2:e0091b5311f1 21 TMP102 tmp102(I2C_SDA,I2C_SCL); // Create TMP102 object
legstar85 2:e0091b5311f1 22
legstar85 2:e0091b5311f1 23 // VCC,SCE,RST,D/C,MOSI,SCLK,LED
legstar85 2:e0091b5311f1 24 N5110 lcd(PTC9,PTC0,PTC7,PTD2,PTD1,PTC11); // Create Screen Object - K64F - pwr from 3V3, GND Pin also needs connecting
legstar85 2:e0091b5311f1 25
eencae 0:21a200b880d7 26
legstar85 2:e0091b5311f1 27 Serial pc(USBTX,USBRX); // UART connection for PC
legstar85 2:e0091b5311f1 28
legstar85 2:e0091b5311f1 29 DigitalOut r_led(LED_RED); // K64F on-board LEDs
legstar85 2:e0091b5311f1 30 DigitalOut g_led(LED_GREEN); // K64F on-board LEDs
legstar85 2:e0091b5311f1 31 DigitalOut b_led(LED_BLUE); // K64F on-board LEDs
eencae 0:21a200b880d7 32
legstar85 2:e0091b5311f1 33 InterruptIn sw2(SW2); // K64F on-board switches
legstar85 2:e0091b5311f1 34 InterruptIn sw3(SW3); // K64F on-board switches
legstar85 2:e0091b5311f1 35
legstar85 2:e0091b5311f1 36 void error(); // error function hangs flashing an LED
legstar85 2:e0091b5311f1 37 void init_serial(); // setup serial port
legstar85 2:e0091b5311f1 38 void init_K64F(); // set-up the on-board LEDs and switches
eencae 0:21a200b880d7 39
eencae 0:21a200b880d7 40 int main()
eencae 0:21a200b880d7 41 {
legstar85 2:e0091b5311f1 42 init_K64F(); // initialise the board
legstar85 2:e0091b5311f1 43 init_serial(); // initialise the serial port
legstar85 2:e0091b5311f1 44
legstar85 2:e0091b5311f1 45 tmp102.init(); // call the sensor init method using dot syntax
legstar85 2:e0091b5311f1 46 lcd.init(); // initialise display
legstar85 2:e0091b5311f1 47
legstar85 2:e0091b5311f1 48 lcd.setContrast(0.5); // change set contrast in range 0.0 to 1.0
eencae 0:21a200b880d7 49
eencae 0:21a200b880d7 50 while (1) {
eencae 0:21a200b880d7 51
legstar85 2:e0091b5311f1 52 lcd.normalMode(); // normal colour mode
legstar85 2:e0091b5311f1 53 lcd.setBrightness(0.5); // put LED backlight on 50%
legstar85 2:e0091b5311f1 54 lcd.clear(); // clear buffer at start of every loop
legstar85 2:e0091b5311f1 55
legstar85 2:e0091b5311f1 56 char buffer[14]; // each character is 6 pixels wide, screen is 84 pixels (84/6 = 14)
legstar85 2:e0091b5311f1 57
legstar85 2:e0091b5311f1 58
legstar85 2:e0091b5311f1 59 int temperature = 27;
legstar85 2:e0091b5311f1 60 int length = sprintf(buffer,"T = %2d C",temperature); // print formatted data to buffer - it is important the format specifier ensures the length will fit in the buffer
legstar85 2:e0091b5311f1 61 if (length <= 14) // if string will fit on display (assuming printing at x=0)
legstar85 2:e0091b5311f1 62 lcd.printString(buffer,0,1); // display on screen
legstar85 2:e0091b5311f1 63
legstar85 2:e0091b5311f1 64 float pressure = 1012.3; // same idea with floats
legstar85 2:e0091b5311f1 65 length = sprintf(buffer,"P = %.2f mb",pressure);
legstar85 2:e0091b5311f1 66 if (length <= 14)
legstar85 2:e0091b5311f1 67 lcd.printString(buffer,0,2);
legstar85 2:e0091b5311f1 68
legstar85 2:e0091b5311f1 69 lcd.refresh(); // need to refresh display after setting pixels or writing strings
legstar85 2:e0091b5311f1 70 wait(2.0);
legstar85 2:e0091b5311f1 71
legstar85 2:e0091b5311f1 72 lcd.clear(); // clear buffer at start of every loop
legstar85 2:e0091b5311f1 73 lcd.refresh(); // need to refresh display after setting pixels or writing strings
legstar85 2:e0091b5311f1 74 wait(0.5);
legstar85 2:e0091b5311f1 75
legstar85 2:e0091b5311f1 76 float T = tmp102.get_temperature(); // read temperature and print to lcd
legstar85 2:e0091b5311f1 77 length = sprintf(buffer,"T = %.2f C",T);
legstar85 2:e0091b5311f1 78 if (length <= 14)
legstar85 2:e0091b5311f1 79 lcd.printString(buffer,0,2);
legstar85 2:e0091b5311f1 80 lcd.refresh(); // need to refresh display after setting pixels or writing strings
legstar85 2:e0091b5311f1 81 wait(2.0);
eencae 0:21a200b880d7 82
eencae 0:21a200b880d7 83 }
eencae 0:21a200b880d7 84
eencae 0:21a200b880d7 85 }
eencae 0:21a200b880d7 86
eencae 0:21a200b880d7 87 void init_serial() {
legstar85 2:e0091b5311f1 88 pc.baud(115200); // set to highest baud - ensure terminal software matches
eencae 0:21a200b880d7 89 }
eencae 0:21a200b880d7 90
eencae 0:21a200b880d7 91 void init_K64F()
eencae 0:21a200b880d7 92 {
legstar85 2:e0091b5311f1 93 r_led = 1; // on-board LEDs are active-low, so set pin high to turn them off.
legstar85 2:e0091b5311f1 94 g_led = 1; // on-board LEDs are active-low, so set pin high to turn them off.
legstar85 2:e0091b5311f1 95 b_led = 1; // on-board LEDs are active-low, so set pin high to turn them off.
eencae 0:21a200b880d7 96
legstar85 2:e0091b5311f1 97 sw2.mode(PullNone); // since the on-board switches have external pull-ups, we should disable the internal pull-down
legstar85 2:e0091b5311f1 98 sw3.mode(PullNone); // resistors that are enabled by default using InterruptIn
eencae 0:21a200b880d7 99
eencae 0:21a200b880d7 100 }