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)

Files at this revision

API Documentation at this revision

Comitter:
scat6490
Date:
Tue May 23 14:45:54 2017 +0000
Child:
1:a33f6ca5a5b3
Commit message:
Working display (Tuesday 3:45pm)

Changed in this revision

SPI_TFT_ILI9341.lib Show annotated file Show diff for this revision Revisions of this file
TFT_fonts.lib Show annotated file Show diff for this revision Revisions of this file
main.cpp Show annotated file Show diff for this revision Revisions of this file
mbed.bld Show annotated file Show diff for this revision Revisions of this file
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/SPI_TFT_ILI9341.lib	Tue May 23 14:45:54 2017 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/dreschpe/code/SPI_TFT_ILI9341/#b2b3e5430f81
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/TFT_fonts.lib	Tue May 23 14:45:54 2017 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/dreschpe/code/TFT_fonts/#76774250fcec
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue May 23 14:45:54 2017 +0000
@@ -0,0 +1,38 @@
+
+#include "stdio.h"
+#include "mbed.h"
+#include "SPI_TFT_ILI9341.h"
+#include "string"
+#include "Arial12x12.h"
+#include "Arial24x23.h"
+#include "Arial28x28.h"
+#include "font_big.h"
+
+SPI_TFT_ILI9341 TFT(PTD2, PTD3, PTD1, PTD5, PTD0, PTA13,"TFT"); // mosi, miso, sclk, cs, reset, dc for frdmkl25z
+
+int main()
+{
+    //pc.baud(115200);
+    wait(0.2);
+    
+    TFT.set_orientation(1);   // Make it horizontal
+    TFT.background(Red);    // Set background to black
+    TFT.foreground(White);    // Set text to white
+    TFT.cls();                // Clear screen
+    TFT.set_font((unsigned char*) Arial12x12); // Set the font
+    
+    TFT.fillrect(0, 0, 320, 30, Red);
+    TFT.printf("Clock by Duncan and Kieran");
+    
+    wait(0.1);
+    
+    TFT.background(Black);    // Set background to black
+    TFT.set_font((unsigned char*) Arial28x28); // Set the font
+
+    for(int i=0; i<10; i++) {
+        wait(1);                  // Wait 1 second
+        TFT.locate(50,50);        // Move location
+        TFT.printf("Time: %d",i); // Write text
+    }
+
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Tue May 23 14:45:54 2017 +0000
@@ -0,0 +1,1 @@
+https://mbed.org/users/mbed_official/code/mbed/builds/4eea097334d6
\ No newline at end of file