Get Crafty this Christmas: Construct a Circuit Electronic Tree with LED

Circuit electronic Christmas tree DIY with LED

Circuit electronic Christmas tree DIY with LED, LED flash using astable oscillator with transistor, PCB in the shape of a Christmas tree to assemble, which will blink according to the oscillation frequency of the circuit.

About circuit transistor Astable Multivibrator

The transistor astable multivibrator is an electronic circuit that is capable of generating a continuous square wave signal without the need for any external input. It is composed of two transistors, resistors, capacitors, and a power supply. The circuit functions by continuously switching the states of the two transistors, causing them to alternatively turn on and off. This switching action charges and discharges the capacitors, resulting in the generation of a square wave output. The frequency of the output signal can be adjusted by changing the values of the resistors and capacitors in the circuit. The transistor astable multivibrator is commonly used in various applications such as timing circuits, frequency generators, and pulse width modulation. It is a versatile and widely used circuit in the field of electronics.

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About the Christmas tree DIY with LED
The sound unit cannot use a buzzer. Otherwise, it will be very noisy. A speaker must be used, as shown in the picture:

Detail Mini Speaker

Welding LEDs needs to be welded in order, with the silk screen facing up, the two boards are in the same order. As shown in the picture:

Pcb Order


The LED on the top of the tower is optional. If you have extra RGB and can change the LED color according to your preferences.

The music chip, 16 seconds Jingle Bells Music Chip Christmas Music with LED Flashing Light SOP8 Package, It is a special function ci with recorded music and can be found on Alibaba or Taobao. The music chip can be changed by yourself.

Music Ic Schematic

Buy in Alibaba

Buy in Taobao – I recommend Taobao Superbuy agent.

Schematic Circuit electronic Christmas tree DIY with LED

Schematic Circuit Electronic Christmas Tree Diy With Led

Bom Circuit electronic Christmas tree DIY with LED

Name Designator Footprint Quantity
100 (101) R2,R4,R6,R7,R8,R19 0805 6
4.7k (472) R3,R5,R9 0805 3
47uF C1,C2,C3, C5, C6, C7, C8 Electrolytic SMD capacitor 3
0.1uF C4 0805 1
SOP8 U1 Special IC 1
Led 3 mm B, D1,D2,D3,D4,D5,D6 Led 3 mm red 7
Led 3 mm D7,D8,D9,D10,D11,D12 Led 3 mm yellow 7
Led 3 mm R,D13,D14,D15,D16,D17,D18 Led 3 mm green 6
2N3904 Q1,Q2,Q3 SOT-23 – SMD NPN transistor 3
K2-1102DP-Z4SW-04 RESET1 Tactile Switches 1
HDR-F-2.54_1×2 H1 Pin header 2 pin 1
D21121000302-BEEP BUZ1 Small speaker 1
USB-TYPE-C6P U2 USB connector type C 6 pin 1

Download files, links, and notes for Circuit electronic Christmas tree DIY with LED

Download PCB in Gerber, PDF, PNG and SVG




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About the author blog author. Electronics technician for the technical school of Brasilia - Brazil. Interested in electronics, circuits and technology in general.

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