Introduction: MiOYOOW 4-Digit Rechargeable Digital Clock, SMD SMT DIY Electronics Kit

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About: You Wanna Experience Fantastic Through-hole/SMD/SMT Electronics Soldering? You Wanna Spark & Encourage Teenager's Talents & Passions and Keep Electronics Learning Interesting and Fun? MiOYOOW is a global onlin…

You Wanna Experience Challenging SMD Electronics Soldering? Hey, look here. This Digital Clock DIY Kit is the best choice!

Features：

1>. Four Display Mode: Time, Time/Temperature, Time/Date/Week/Year, Temperature

2>. Automatic Brightness Adjustment: Built-in photosensitive sensor which can automatically adjust the brightness of the display screen. Users can also set 1-15 levels of fixed brightness.

3>. Dual Alarm Clock: Built-in 2 sets of alarm clocks. Users can ON or OFF Alarm1 or Alarm2 according needs. It can be turn on at the same time or only one alarm clock can be turn on.

4>. Stopwatch: Record minutes and seconds after start.

5>. Countdown: Set the countdown as required. Maximum time is 99:59.

6>. Voice Hourly Report: Buzzer alarm prompt 5 times on hour.

7>. Motor Vibrate: Motor vibration prompt when pressing the buttons.

8>. Power-down memory: The time and set parameters will run automatically after installing the built-in battery CR1220 without re-calibrate and setup.

Supplies

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.


Step 1: Install SMD SOP-16 STC15W404AS

Please be more patient!

Step 2: Melt the Solder on One Pad of PCB

Step 3: Fix STC15W404AS

Step 4: Connect Other Pads on STC15W404AS

Step 5: Install SMD TP5400 Charging IC & DS1302 Clock IC

Step 6: Install S9012 Transistor & 10uF SMD Capacitor

Step 7: Install 0.1uF SMD Capacitor & 22pF SMD Capacitor

Step 8: Install 22uF SMD Capacitor & 33ohm SMD Resistor

Step 9: Install 1.2Kohm SMD Resistor & 10Kohm SMD Resistor

Step 10: Install 1Kohm SMD Resistor 102

Step 11: Install 330ohm SMD Resistor 331

Step 12: Identify the Positive and Negative Poles of the LEDs

Step 13: Install 10uH SMD Inductor & 1N5819 Diode SS14

Step 14: Install CR1220 Battery Socket & 220uF Capacitor

Step 15: Install Active Buzzer & 32.768K Oscillator

Step 16: Install Vibrating Motor & GL5516 Photoresistor

Step 17: Install 10K NTC Thermistor & DC-002 Power Socket

Step 18: Install 4Bit Digital Tube & 14500 Lithium Battery Box

Step 19: Install SMD Button & 3V CR1220 Battery

Step 20: Install Battery(NOT INCLUDE)

Step 21: Tear Off the Protective Film on the Arcylic Surface

Step 22: Fix Copper Pillar on PCB

Step 23: Fix Acrylic Base Plate

Step 24: Fix 2pcs Larger Side Acrylic Plate by M2 Screw/Nut

Step 25: Fix Another 2pcs Side Acrylic Plate by M2 Screw/Nut

Step 26: Fix Top Acrylic Plate & Setting Parameters