Little Cat 4Bit Digital Electronic Clock DIY Kit Instruction Manual

Little Cat 4Bit Digital Electronic Clock DIY Kit

Specifications:

• Work voltage: DC 5V
• LED color: Blue
• Work Temperature: -20 to 85 degrees Celsius
• Work Humidity: 0% to 95% RH
• Size (Installed): 95 x 85 x 22mm

Product Usage Instructions

Introduction:

The Little Cat 4Bit Digital Electronic Clock DIY Kit is a versatile device that displays current date, time, temperature, and offers alarm clock functionality. It features automatic brightness adjustment, adjustable alarm clock music, and voice hourly report.

Features:

1. Blue color LED display
2. Automatic brightness adjustment
3. Time/Date/Alarm/Temperature display
4. Adjustable alarm clock music
5. Time memory function
6. Temperature value calibration
7. Voice Hourly Report
8. DIY manual soldering
9. Simple and easy to operate

Function:

1. Display time: Hour, Minute, Second.
2. Display date: Year, Month, Day.
3. Display week.
4. Display current temperature in Celsius.
5. Adjustable alarm clock music: 4 options.
6. Voice Hourly Report.
7. Automatic brightness adjustment.
8. Adjustable volume.
9. Set display mode.
10. Calibrate temperature display value.

FAQ

• Why are garbled characters displayed when the power is turned on for the first time?
  • Garbled characters appear initially due to incomplete settings. Ensure all settings are correctly configured for proper display.
• How should I calibrate the temperature value?
  • To calibrate the temperature value, select the temperature display mode first before proceeding with the calibration process.

Introduction

TJ-56-441 is a 4Bit Digital Electronic Clock DIY Kit. It will display current date, time, temperature in the real time, Alarm clock music.User can set alarm as your needs.It is easy to operate, beautiful design, very suitable for home or office environment.

Feature

1. Blue color LED display
2. Automatic brightness adjustment
3. Time/Date/Alarm/Temperature
4. Adjustable alarm clock music
5. Time memory function
6. Temperature value can be calibrated
7. Voice Hourly Report
8. DIY manual soldering
9. Simple and easy to operate

Parameter

1. Work voltage:DC 5V
2. LED color:Blue
3. Work Temperature:-20℃~85℃
4. Work Humidity:0%~95%RH
5. Size(Installed):958522mm

Function

1. Display time: Hour, Minute, Second.
2. Display date: Year, Month, Day.
3. Display week.
4. Display current temperature in Celsius.
5. Adjustable alarm clock music: 4 music.
6. Voice Hourly Report.
7. Automatic brightness adjustment.
8. Adjustable volume.
9. Set display mode.
10. Calibration temperature display value.

Set Method

1. It displays the current time by default in hour-minute. Note:

2. Press S1/left button to display month-day, week, year.

3. Press S2/right button to display temperature, alarm time, and minute-second.

4. Switch LED Display Mode:

5. Keep press two buttons about 3 second enter into Switch LED Display Mode.

6. There are a total of 13 display modes for LED.

7. Set Method:

8. Keep press two buttons about 5 second until display ‘Fu-1’ enter into set mode.

9. Short press the S1/left button to switch set mode from Fu-1 to Fu-5. The parameter 1~5 will flash automatically.

10. Short press S2/right button to selected mode.

11. The selected or setting parameters will flash automatically.

12. S1/left button is used to change the value.Note: The value just can increase and then start to increase again.

13. S2/right button is used to set parameters or confirm selected.

14. Fu-1 mode:Set time in Hour: Minute.

15. Set Hour: Short press S1/left button to set value for current hour.

16. 6.2>.Set Minute: Short press S2/right button to select set for minute.And then press S1/left button to set value for current minute.

17. Press S2/right button again to save and exit set mode.

18. Fu-2 mode:Set date in Month, Day and Year.

19. Set Month: Short press S1/left button to set value for current month.

20. Set Day: Short press S2/right button to select set for day.And then press S1/left button to set value for current day.

21. Set Year: Short press S2/right button to select set for year.And then press S1/left button to set value for current year. It can display from 2000 to 2099.

22. Press S2/right button again to save and exit set mode.

23. Fu-3 mode:Set alarm time in Hour:Minute.

24. Set Hour: Short press S1/left button to set value for alarm hour. Note: the hour can be set 24 which means turn OFF alarm.

25. Set Minute: Short press S2/right button to select set for minute.And then press S1/left button to set value for alarm minute.

26. Press S2/right button again to save and exit set mode.

27. Fu-4 mode: Set Hourly Report, Display Mode, Set Brightness.

28. It can display 4bit: The first bit is used to set Hourly Report. The second bit is used to set
    Display Mode and the last two bit are used to set Brightness.

29. Set Hourly Report:

30. Short press S1/left button to disable and enable Hourly Report function.

31. ‘1’ means enable Hourly Report function.

32. ‘0’ means disable Hourly Report function.

33. Set Display Mode:

34. Short press S2/right button to select set the second bit to set display mode. And then press S1/left button to switch display mode.

35. ‘0’ means just display time.

36. ‘1’ means display time and interval display temperature. The interval time is about 59 second and display temperature in 1 second. That is, the temperature is displayed for 1 second every minute.

37. ‘2’ means display time and interval display date and temperature. The interval time is about 58 second and display date in 1 second and display temperature in 1 second. That is, the temperature and date are displayed for 1 second each minute.

38. ’3’ means just display temperature. Note: In this mode,user can calibration temperature value at normal display interface by two buttons.

39. Set Brightness.

40. Short press S2/right button to select set the last two bits to set display brightness. And then press S1/left button to switch display mode.

41. A’ means the display brightness is automatically adjusted according to the ambient brightness.

42. ‘1’ to ‘15’ means set the brightness level. The brightness of the display will not change.

43. Press S2/right button again to save and exit set mode.

44. E.g. ‘1215’ means: Enable Hourly Report function; Display time and interval display date and temperature; The brightness level is 15.

45. Fu-5 mode: set Alarm Clock Music, set Volume.

46. Set Alarm Clock Music: Short press S1/left button to select 4 music.

47. Set Day: Short press S2/right button to select set volume.And then press S1/left button to set volume value from ‘4’ to ‘40’. Maximum volume when ‘40’ is displayed.

48. Press S2/right button again to save and exit set mode.

49. Note:

50. Garbled characters are displayed when the power is turned on for the first time, and the settings need to be completed before they can be displayed correctly.

51. When calibrating the temperature value, user must select only temperature display mode at first.

Component listing

Note:Users can complete the installation according to the PCB silk screen and component list.

Application

1. Practical at home
2. Indoor display
3. Simple appearance, easy office
4. Wall decoration

Installation Tips:

1. User needs to prepare the soldering tool at first.
2. Please be patient until the installation is complete.
3. The package is DIY kit.It need finish install by user.
4. The soldering iron can’t touch the components for a long time(1.0 second), otherwise it will damage the components.
5. Pay attention to the positive and negative of the components.
6. Strictly prohibit short circuit.
7. Install complex components preferentially.
8. Make sure all components are in right direction and right place.
9. Please wear anti-static gloves or anti-static wristbands when installing electronic components.
10. It is strongly recommended to read the installation manual before starting installation!!!

Schematic

Installation Steps

Installation Steps(Please be patient install!!!):

Step 1: Install 1pcs SMD components SOP-28 STC15W408AS at U1 . Verify and confirm the installation direction of STC 15W408AS. There is a dot mark on one end of the IC and there is a gap mark on PCB silkscreen where the IC can place on. These two marks correspond to each other and are used to specify the installation direction of the IC.

Step 2: Randomly choose a pad on the PCB, and then melt the solder on this pad

Step 3: Fix STC15W408AS: Use a soldering iron to melt tin on the pad just now and hold STC15W408AS with tweezers in the other hand to place/press on U 1 to prevent movement. Take care to match and align each pads. Then remove soldering iron. Then remove tweezers after solder tin cooling and solidification.

Step 4: Connect others pads on STC15W408AS by tin and soldering iron

Step 5: Install 1pcs SOP-8 DS1302 Clock IC at U2 in the same methods

Step 6: Install 1 pcs SOT-23 S8550 Transistor with screen printing ‘2TY’ at Q1 in the same methods

Step 7: Install 1pcs 1206 SMD 1N4148 Diode at 101 . Pay attention to the installation direction. Note: The black mark on Diode and white mark on PCB are corresponding

Step 8: Install 8pcs 470ohm 0805 SMD Resistor with screen printing ‘471 ‘ at R1-R8.
Step 9: Install 4pcs 10Kohm 0805 SMD Resistor with screen printing ‘103’ at R10,R11 , R14,R15.

Step 10: Install 1pcs 100Kohm 0805 SMD Resistor with screen printing ‘104’ at R12.

Step 11: Install 1 pcs 15ohm 0805 SMD Resistor with screen printing ‘150’ at R9.

Step 12: Install 1pcs 200Kohm 0805 SMD Resistor with screen printing ‘204’ at R13.

Step 13: Install 2pcs 5pF 0805 SMD Capacitor with white package at C1 ,C2.

Step 14: Install 1pcs 1uF 0805 SMD Capacitor with transparent package at C3.

Step 15: Install 1pcs Black 0805 SMD 10K NTC Temperature Sensor with white package at RM.

Step 16: Install 1 pcs 32768Hz Crystal Oscillator at Y2. Note: Horizontal placement.

Step 23: Install 1 pcs 0.56in 4Bit Digital Tube at SMG. Pay attention to the installation direction of the decimal point

Step 24: Install 1pcs CR1220 Battery on CR1220 Battery Socket. Note: The positive electrode of the battery faces outward.

Step 25: Tear off the protective film on the black acrylic surface.

Step 26: Place 4pcs M3*20mm Screw on Acrylic TOP Board as shown.

Step 27: Place 4pcs White Isolation Column on Screw as shown.

Step 28: Place PCB circuit board on Screw as shown.

Step 29: Place 4pcs White Isolation Column again on Screw as shown.

Step 30: Place another Acrylic Board on Screw as shown.

Step 31: Fix by 4pcs M3 Nut.

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