MiOYOOW 4-Digit Digital DIY Clock Kits With Acrylic Shell

• ⏰【Light-controlled Temperature Clock Kit】: The practical soldering kit are used to installed to a 4-Digit Digital Light-controlled Temperature LED Electronic Clock. Which can display current date, time, temperature in the real time, Alarm clock music. User can set alarm as your needs. This diy electric kit is widely used in schools to help students learn basic mechanical and electronic skills. Highly recommended to practice soldering skills enjoyably for you.

• ⏰【Great School Science Project】: Electronic soldering project kit for soldering practice and also suitable for family education. Not only to improve your soldering skills, you will also will be more familiar with electronic components and learn more interesting electronics things. But please note, this diy soldering kit requires certain foundation of basic electronic theoretical knowledge and welding and hands-on ability. The finished project can also be used as desktop art accessories.

• ⏰【Easy Assembly】: In addition to teaching basic mechanical and electronic principles, the led clock kit is easy to build and the principle is simple. The connection that was clearly mapped and labeled on the board. The diy soldering project is often used to teach basic soldering skills. A great first diy electronics kit for any STEM student. The soldering practice kits are also suitable for DIY electronics enthusiasts and can be used as school education practice kits.

• ⏰【Functions & Features】: The diy electronic clock can display Time, Date (year, month, day, week), Temperature. The brightness can be set to automatically adjust, or you can manually adjust the brightness. With power-off memory and alarm clock function, the alarm clock can be turned on or off by yourself and contains 4 music adjustable. The 4-digit digital electronic clock can also accurately measure temperature. Please note that for the first use, the temperature needs to be calibrated.

Set Method:

4.1>.Keep press two buttons about 3 second enter into set mode.

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

4.3>.Short press S2/right button to selected mode.

4.4>.The selected or setting parameters will flash automatically.

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

4.6>.S2/right button is used to set parameter or confirm selected.

1>.Step 1: Install 5pcs 10Kohm Metal Film Resistor at R13,R16,R18,R19,R21.

2>.Step 2: Install 1pcs 20Kohm Metal Film Resistor at R14.

3>.Step 3: Install 1pcs 510ohm Metal Film Resistor at R20.

4>.Step 4: Install 1pcs Thermistor at R17.

5>.Step 5: Install 1pcs DO-35 1N4148 Diode at D1. Pay attention to the installation direction. Note: The black mark on Diode and the white mark on PCB are corresponding.

6>.Step 6: Install 1pcs GL5516 GL5516 Photoresistor at R15 on PCB another side.

7>.Step 7: Install 1pcs DIP-20 IC Socket at U1.There is a mark(notch) on one end of the IC Socket and there is a mark(curved silk screen printing) on PCB where the IC Socket can place on.These two marks are corresponding to each other and are used to specify the installation direction of the IC Socket.

8>.Step 8: Install 1pcs DIP-8 IC Socket at U2.There is a mark(notch) on one end of the IC Socket and there is a mark(curved silk screen printing) on PCB where the IC Socket can place on.These two marks are corresponding to each other and are used to specify the installation direction of the IC Socket.

9>.Step 9: Install 2pcs 5pF Ceramic Capacitor at C4,C5.

10>.Step 10: Install 2pcs 0.1uF 104 Ceramic Capacitor at C1,C2.

11>.Step 11: Install 1pcs CR1220 Battery Socket at BT1.

12>.Step 12: Install 1pcs TO-92 S8550 Transistor at Q1.Pay attention to the installation direction of arc.

13>.Step 13: Install 1pcs 3.5*1.2mm DC Power Socket at DC.

14>.Step 14: Install 1pcs 32.768K Crystal Oscillator at Y2.

15>.Step 15: Install 1pcs 100uF Electrolytic Capacitor at C3. Pay attention to distinguish between positive and negative.The shorter pin is negative pole and insert into white pad.

16>.Step 16: Install 1pcs Passive buzzer at LS1. Pay attention to the installation direction.

17>.Step 17: Install 2pcs 6*6*5mm Black Button at S1,S2.

18>.Step 18: Install 1pcs 0.56in 4Bit Digital Tube at DS1 on PCB another side.Pay attention to the installation direction of the decimal point.

19>.Step 19: Install 1pcs DIP-20 IC STC15W404AS at U1.There is a mark(notch) on one end of the IC Socket and there is a mark(curved silk screen printing) on PCB where the IC can place on.These two marks are corresponding to each other and are used to specify the installation direction of the IC.

20>.Step 20: Install 1pcs DIP-8 IC DS1302 Clock Chip at U2 in the same method.

21>.Step 21: Install 1pcs 3V CR1220 Battery on battery socket. Pay attention to the direction of the battery.

22>.Step 22: Tear off the protective film on the black acrylic surface.

23>.Step 23: Fixed bottom acrylic plate by 4pcs M2*25mm Screw.

24>.Step 24: Place 4pcs acrylic plate on side and PCB on bottom acrylic plate.

25>.Step 25: Fixed all acrylic plate 4pcs M2 Nut.

26>.Step 26: Connect to power supply and set parameters according to set method.