Duncan & Kieran
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
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-KL25Z | MI0283QT-9A |
|---|---|
| P3V3 | 3.3V, IM1, IM2, IM3 |
| GND | RD, IM0, LEDK |
| PTD5 | CS |
| PTD1 | RS |
| PTD0 | RST |
| PTD2 | SDI |
| PTD3 | SDO |
| PTA13 | WR |
| 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-KL25Z | Input |
|---|---|
| PTA5 | Minute button |
| PTC8 | Hour button |
| PTC9 | Time 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)
History
Final version, with changing analogue clock colours, Friday 11:20am
2017-05-26, by scat6490 [Fri, 26 May 2017 10:20:25 +0000] rev 9
Final version, with changing analogue clock colours, Friday 11:20am
Complete clock, with small final changes, Friday 11:03am
2017-05-26, by scat6490 [Fri, 26 May 2017 10:03:27 +0000] rev 8
Complete clock, with small final changes, Friday 11:03am
Working clock with accelerometer to snooze or disable alarm, Friday 10:45am
2017-05-26, by scat6490 [Fri, 26 May 2017 09:48:57 +0000] rev 7
Working clock with accelerometer to snooze or disable alarm, Friday 10:45am
Working clock, with everything, Friday 10:13pm
2017-05-26, by scat6490 [Fri, 26 May 2017 09:15:06 +0000] rev 6
Working clock, with everything, Friday 10:13pm
Display, clock, alarm, time changing, Wednesday 3:55pm; Commented and small changes
2017-05-24, by scat6490 [Wed, 24 May 2017 14:57:37 +0000] rev 5
Display, clock, alarm, time changing, Wednesday 3:55pm; Commented and small changes
Display, clock, alarm, time changing, Wednesday 2:50pm
2017-05-24, by scat6490 [Wed, 24 May 2017 13:50:26 +0000] rev 4
Display, clock, alarm, time changing, Wednesday 2:50pm
Tuesday 5pm (to delete)
2017-05-23, by scat6490 [Tue, 23 May 2017 15:50:45 +0000] rev 3
Tuesday 5pm (to delete)
Screen showing time, with alarm at 9:00, Tuesday 4:05pm
2017-05-23, by scat6490 [Tue, 23 May 2017 15:05:29 +0000] rev 2
Screen showing time, with alarm at 9:00, Tuesday 4:05pm
Screen showing time, Tuesday 4:00pm
2017-05-23, by scat6490 [Tue, 23 May 2017 14:58:33 +0000] rev 1
Screen showing time, Tuesday 4:00pm
Working display (Tuesday 3:45pm)
2017-05-23, by scat6490 [Tue, 23 May 2017 14:45:54 +0000] rev 0
Working display (Tuesday 3:45pm)