PCB Ghost Soldering Kit - 2019

By Jamal Bouajjaj


This project is a PCB soldering kit in the shape of a ghost. The kit has been designed with some SMD and THT parts. If you plan to use this design as a kit for people who have no/minimal soldering experience, it is recommended to pre-solder the SMD parts before giving the board to them for them to solder.


Project's folder:

Click the GitHub folder below to access the project's files, which include the KiCad PCB files, the Gerber files, and the Autodesk Inventor CAD files.

Google Drive Link


Image 1

PCB Parts:

This kit has some THT and SMD parts to be soldered (THT means through-hole, and SMD means surface-mount).

PCB Reference Part DescriptionPackage Size Quantity per Board
R15.6kΩ ResistorTHT1
R23.3kΩ ResistorTHT1
U1555 TimerDPI-81
C1100uF CapacitorTHT1
C2 (Optional)0.1uF CapacitorTHT1
C3 (Optiona) 0.1uF CapacitorSMD-12061
D1-D125mm LEDTHT12
R3-R14270Ω ResistorSMD-120612
J19v HarnessWire1

Theory of Operation:

The circuit is based on the 555 timer. The chip, if set up as done in this circuit, will act as an oscillator, which will generate a square wave on the output, in which the frequency is dependent on R1, R2, and C1. With the chosen values, the output will have a frequency of 1.2Hz, also meaning the output will oscillate once every 0.85 seconds. This output is used to drive the 12 LEDs on the board directly.


Here is the PCB's schematic:

Schematic of Project

Technical Diagrams:

Here is some diagrams relating to the project:

Hand Soldering Assembly PCB Drawing Base Final Assembly

Custom Base:

I have designed a base for the ghost to sit on.

The files for the cover and base can be found in the project's folder