Christmas Ornament DIY Soldering Kit Decoration Electronic LED Red Learn to Solder

Features:

• Miniature Xmas gadget
• Light up LED ornament kit
• Requires soldering to put it together
• Show off your electronic soldering skills with this neat little project
• Great for techies, engineers, designers, programmers, electronic artists, etc.
• 16 LEDs to solder on for practice!
• Ornament can be hung (e.g. in the window or Xmas tree) or can be worn as a badge
• Great attention grabber

• LED Christmas Tree Decoration Soldering Kit
• Educational: designed to teach the basics of through-hole soldering and circuit design
• Attractive Design: Features blinking red and green lights, perfect for hanging on Christmas trees, backpacks, or windowsills. Makes a wonderful gift.
• Ideal for Various Users: Suitable for beginners, school experiments, parent-child teaching, and friends interested in crafts or science.

Specifications

• power supply: 3V (battery sold separately: Coin Cell Battery)
• operating temperature: -40C to 85C $(-40F$ to 185F)
• dimensions: 2.40 x 2.16 inches

How it works:

• R1, R2, and C1 are connected to the NE555 integrated circuit, forming a multi harmonic oscillator circuit.
• The circuit outputs high and low signals at approximately 1 Hz through pin 3.
• When pin 3 outputs a low level, LED1-8 light up; when it outputs a high level, LED11-18 light up.
• LEDs 1-16 are arranged in a cross row, using red and green colors alternately.
• Once powered on, the circuit creates a flowing, flashing light effect.

Assembly Instructions:

1. Organize Components: Arrange all parts (LEDs, resistors, capacitor, NE555 IC, Battery Holder) so you can see everything
2. Install 10K Resistors: Solder the two 10K resistors (brown, black, black, red, brown) onto the PCB in slots R1 and R2.
3. Install 1K Resistors: Solder the sixteen 1K resistors (brown, black, black, brown, brown) onto the PCB in slots R3 and R18.
4. Place Red and Green LEDs: Insert the LEDs into the board in alternating color starting with red at the top of the board. Place them all around the edges aligning their polarities (longer leg = positive) so the positive legs are closest to the outer edge of the board. Solder each in its position.
5. Install 555 Timer IC: Place the NE555 IC on the PCB and solder it securely. Make sure the notch on the circuit board matches the notch on the chip.
6. Attach Capacitor: Solder the capacitor C1 as indicated. Ensure proper orientation for polarized capacitors where the longer leg is + and - is labeled on the capacitor.
   
7. Install Battery Holder: Attach and solder the battery holder on the back of the board. Make sure the notch is in the marked position as printed on the circuit board.
8. Inspect Connections: Double-check all solder joints for completeness and potential short circuits.
9. Test the Circuit: Plug the battery into the battery socket on the back and enjoy the LED light show! Congrats!

Additional Resources: Helpful Assembly Instruction Video: https://www.youtube.com/watch?v=aWcp5OjzusI&t=14s