Duncan & Kieran / Mbed 2 deprecated SmartClock

Final version, with changing analogue clock colours, Friday 11:20am

Dependencies:   MMA8451Q SPI_TFT_ILI9341 TFT_fonts mbed

Smart clock by Duncan and Kieran

Photo

http://www.imgur.com/SiyOshx.jpg

Equipment

  • PCB: FRDM-KL25Z
  • TFT Color Display: MI0283QT-9A
  • Buzzer
  • 3 x buttons
  • 3 x 2kΩ resistors and 1 x 100Ω resistor
  • Stripboard
  • Wires (stranded is preferable due to their flexibility)
  • USB to Mini-USB cable, and computer

Setup

PCB to TFT (Output)

FRDM-KL25ZMI0283QT-9A
P3V33.3V, IM1, IM2, IM3
GNDRD, IM0, LEDK
PTD5CS
PTD1RS
PTD0RST
PTD2SDI
PTD3SDO
PTA13WR
P5V_USB through 100Ω resistor (approx. 20mA)LEDA

The buzzer should be connected between PTA12 and ground.

Note: The resistance between P5V_USB and LEDA can be reduced to increase the brightness of the screen. However, resistors lower than 30Ω have not been tested, and may result in the current causing damage to the PCB.

PCB to Buttons (Inputs)

FRDM-KL25ZInput
PTA5Minute button
PTC8Hour button
PTC9Time change button - toggles between changing the alarm time and the clock time

Each button should be connected in series with a 2kΩ resistor between 3.3V and 0V, so that pressing the button switches between these two voltages.

Features

  • A digital clock, displayed in 24-hour format
  • An analogue clock, displaying the time in standard 12-hour format
  • Alarm can be changed using the minute and hour buttons
  • Time can be changed by holding the third button
  • Alarm will sound for one minute at the displayed time
  • Putting the alarm on its side will snooze the alarm if the alarm is going off (or just disable it if the alarm is not sounding)

main.cpp@1:a33f6ca5a5b3, 2017-05-23 (annotated)

Committer:
scat6490
Date:
Tue May 23 14:58:33 2017 +0000
Revision:
1:a33f6ca5a5b3
Parent:
0:4fd6c8718206
Child:
2:21c4f254786f
Screen showing time, Tuesday 4:00pm

Who changed what in which revision?

UserRevisionLine numberNew contents of line
scat6490 0:4fd6c8718206 1
scat6490 0:4fd6c8718206 2 #include "stdio.h"
scat6490 0:4fd6c8718206 3 #include "mbed.h"
scat6490 0:4fd6c8718206 4 #include "SPI_TFT_ILI9341.h"
scat6490 0:4fd6c8718206 5 #include "string"
scat6490 0:4fd6c8718206 6 #include "Arial12x12.h"
scat6490 0:4fd6c8718206 7 #include "Arial24x23.h"
scat6490 0:4fd6c8718206 8 #include "Arial28x28.h"
scat6490 0:4fd6c8718206 9 #include "font_big.h"
scat6490 0:4fd6c8718206 10
scat6490 1:a33f6ca5a5b3 11 Ticker timer;
scat6490 1:a33f6ca5a5b3 12 DigitalOut output_high1(PTA4);
scat6490 1:a33f6ca5a5b3 13 DigitalOut output_high60(PTC8);
scat6490 1:a33f6ca5a5b3 14 DigitalIn input1(PTA5);
scat6490 1:a33f6ca5a5b3 15 DigitalIn input60(PTC9);
scat6490 1:a33f6ca5a5b3 16 Serial pc(USBTX,USBRX);
scat6490 0:4fd6c8718206 17 SPI_TFT_ILI9341 TFT(PTD2, PTD3, PTD1, PTD5, PTD0, PTA13,"TFT"); // mosi, miso, sclk, cs, reset, dc for frdmkl25z
scat6490 0:4fd6c8718206 18
scat6490 1:a33f6ca5a5b3 19 int minutes = 0;
scat6490 1:a33f6ca5a5b3 20 int hours = 0;
scat6490 1:a33f6ca5a5b3 21
scat6490 1:a33f6ca5a5b3 22 void timeup(){
scat6490 1:a33f6ca5a5b3 23 minutes = (minutes + 1)%60;
scat6490 1:a33f6ca5a5b3 24 if(minutes==0) (hours++)%24;
scat6490 1:a33f6ca5a5b3 25 }
scat6490 1:a33f6ca5a5b3 26
scat6490 0:4fd6c8718206 27 int main()
scat6490 0:4fd6c8718206 28 {
scat6490 0:4fd6c8718206 29 //pc.baud(115200);
scat6490 0:4fd6c8718206 30 wait(0.2);
scat6490 0:4fd6c8718206 31
scat6490 0:4fd6c8718206 32 TFT.set_orientation(1); // Make it horizontal
scat6490 0:4fd6c8718206 33 TFT.background(Red); // Set background to black
scat6490 0:4fd6c8718206 34 TFT.foreground(White); // Set text to white
scat6490 0:4fd6c8718206 35 TFT.cls(); // Clear screen
scat6490 0:4fd6c8718206 36 TFT.set_font((unsigned char*) Arial12x12); // Set the font
scat6490 0:4fd6c8718206 37
scat6490 0:4fd6c8718206 38 TFT.fillrect(0, 0, 320, 30, Red);
scat6490 0:4fd6c8718206 39 TFT.printf("Clock by Duncan and Kieran");
scat6490 0:4fd6c8718206 40
scat6490 0:4fd6c8718206 41 wait(0.1);
scat6490 0:4fd6c8718206 42
scat6490 0:4fd6c8718206 43 TFT.background(Black); // Set background to black
scat6490 0:4fd6c8718206 44 TFT.set_font((unsigned char*) Arial28x28); // Set the font
scat6490 1:a33f6ca5a5b3 45
scat6490 1:a33f6ca5a5b3 46 output_high1 = 1;
scat6490 1:a33f6ca5a5b3 47 output_high60 = 1;
scat6490 1:a33f6ca5a5b3 48 timer.attach(&timeup, 1);
scat6490 1:a33f6ca5a5b3 49
scat6490 1:a33f6ca5a5b3 50 while(1) {
scat6490 1:a33f6ca5a5b3 51 switch(input1){
scat6490 1:a33f6ca5a5b3 52 case 1:
scat6490 1:a33f6ca5a5b3 53 minutes = (minutes++)%60;
scat6490 1:a33f6ca5a5b3 54 wait(0.2);
scat6490 1:a33f6ca5a5b3 55 break;
scat6490 1:a33f6ca5a5b3 56 case 0:
scat6490 1:a33f6ca5a5b3 57 break;
scat6490 1:a33f6ca5a5b3 58
scat6490 1:a33f6ca5a5b3 59 }
scat6490 1:a33f6ca5a5b3 60
scat6490 1:a33f6ca5a5b3 61
scat6490 1:a33f6ca5a5b3 62 switch(input60){
scat6490 1:a33f6ca5a5b3 63 case 1:
scat6490 1:a33f6ca5a5b3 64 hours=hours++;
scat6490 1:a33f6ca5a5b3 65 wait(0.2);
scat6490 1:a33f6ca5a5b3 66 break;
scat6490 1:a33f6ca5a5b3 67 case 0:
scat6490 1:a33f6ca5a5b3 68 break;
scat6490 1:a33f6ca5a5b3 69 }
scat6490 1:a33f6ca5a5b3 70
scat6490 1:a33f6ca5a5b3 71 TFT.locate(50, 50);
scat6490 1:a33f6ca5a5b3 72 TFT.printf("%d:%d ",hours,minutes);
scat6490 0:4fd6c8718206 73 }
scat6490 0:4fd6c8718206 74
scat6490 0:4fd6c8718206 75 }