User Guide for LED Christmas Tree Kit

7 Colors 3D LED Christmas Tree Kit for DIY Soldering practice Project

Product Link: https://www.amazon.com/dp/B08GKNYSF5

Contact Email: mike_mm@yeah.net

Summary

The 3D Christmas tree DIY soldering kit is designed to enhance users' electronics knowledge and soldering skills. It is an ideal project for electronics enthusiasts, school student projects, After School Programs (ASP), and STEM education.

Tools Required (Not Included)

• Soldering iron
• Solder wire
• Pliers
• Screwdriver
• Tweezers

Important Notes

• The components are clearly marked on the PCB board, making it easy to identify where each component should be placed and soldered.
• Students should perform soldering under the supervision of teachers or parents.
• Please count all components and compare them to the provided component list. Contact the seller via email if any parts are missing.

Product Specifications

Parameters

Components Package Included

The kit includes two main green circuit boards shaped like Christmas trees (PCB A and PCB B), a base board (CTR-30C), various resistors (2K Ohm, 1K Ohm, 330 Ohm, 10K Ohm), capacitors (47uF/16V), 3mm RGB LEDs, S9014 transistors, a self-lock switch, a DC power socket, a battery box for 3 AA batteries, a USB power cable, screws, and nuts.

Components List

Installation Steps

Step 1: Soldering 10K Resistors

Solder seven pieces of 10K Ohm resistors (color code: brown-black-orange) onto PCB A and PCB B at locations R1, R3, R5, and R7. The image shows the two tree-shaped PCBs with red rectangles highlighting the specific resistor placement points.

Step 2: Soldering Other Resistors

Solder the remaining resistors: two 2K Ohm resistors (red-black-red) on R2, two 1K Ohm resistors (brown-black-red) on R4, and two 330 Ohm resistors (orange-orange-brown) on R6 of both PCB A and PCB B. The image displays the PCBs with red rectangles indicating these resistor locations.

Step 3: Soldering Capacitors

Solder six capacitors onto locations C1, C2, and C3 of both PCB A and PCB B. Note: The longer pin of the capacitor is positive (+) and should be aligned with the '+' marked pad on the PCB. The shorter pin is negative (-) and should be aligned with the '-' marked pad. The image shows the PCBs with red rectangles highlighting the capacitor placement points.

Step 4: Soldering Transistors

Solder six S9014 transistors onto locations Q1, Q2, and Q3 of both PCB A and PCB B. Note: The transistor's round face should point towards the round line on the PCB, and the straight face should point towards the straight line. The image shows the PCBs with red rectangles highlighting the transistor placement points.

Step 5: Soldering LEDs

Solder 36 LEDs onto locations D1 through D18 of both PCB A and PCB B. Note: The longer pin of the LED is positive (+) and should be soldered to the square pad on the PCB. The shorter pin is negative (-) and should be soldered to the round pad. The image shows the PCBs with red rectangles highlighting the LED placement points.

Step 6: Testing PCB A & B

Test both PCB A and PCB B to ensure they are functioning correctly before proceeding to the next step. The image shows the assembled tree PCBs connected to digital multimeters, displaying voltage readings of approximately 4.800V and 4.155V, and current readings of approximately 0.007A and 0.009A.

Step 7: Stitching CTR-30A and CTR-30B

Align the two position heads (connectors/pins) on CTR-30A and CTR-30B, then solder them together securely. The image shows red arrows indicating the alignment and connection points between the two PCB tree boards.

Step 8: Install CTR-30C (Base Board)

Step 8a: Install Power Socket

Install the DC power socket onto the CTR-30C board. The image shows the power socket being inserted into the designated holes on the board. Pins from resistors may be used to secure the socket.

Step 8b: Install Self-lock Switch

Install the self-lock switch onto the CTR-30C board. Note: Ensure the concave side of the switch is positioned close to the edge of the PCB. The image shows the switch being placed on the board.

Step 8c: Install Battery Box

Install the battery box onto the CTR-30C board. Note: Connect the red wire to the positive (+) terminal and the black wire to the negative (-) terminal. The image shows the battery box being mounted and wired.

Step 8d: Fixed CTR-30A, CTR-30B on CTR-30C

Attach the assembled CTR-30A and CTR-30B boards to the CTR-30C base board. Note: The '+' and '-' markers on CTR-30A and CTR-30B must align with the corresponding '+' and '-' markers on CTR-30C. The image shows the boards being connected.

Step 8e: Install the Last LED

Install the final LED at the very top of the tree. Note: Ensure the long pin (+) is soldered to the '+' pad on the PCB, and the short pin (-) is soldered to the '-' pad. The image shows the top LED placement.

Project Completion

The 3D LED Christmas Tree kit assembly is now complete. Enjoy your festive creation!

The completed project is a vibrant, multi-colored 3D LED Christmas tree, illuminated and ready for display. It sits on a green base board containing the power and control components.