PCB Ghost Soldering Kit - 2019

By Jamal Bouajjaj

Introduction:

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.

Warnings/Issues:

Due to the original intent of this kit, it will have many reference to the University of New Haven and it's makerspace.
If you plan to use this kit for your own purpose, it is recommeded to update the PCB in Kicad to remove such marks. The same applies for all CAD drawings made in Autodesk Inventor 2018.

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.

Pictures:

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 Description	Package Size	Quantity per Board
R1	5.6kΩ Resistor	THT	1
R2	3.3kΩ Resistor	THT	1
U1	555 Timer	DPI-8	1
C1	100uF Capacitor	THT	1
C2 (Optional)	0.1uF Capacitor	THT	1
C3 (Optiona)	0.1uF Capacitor	SMD-1206	1
D1-D12	5mm LED	THT	12
R3-R14	270Ω Resistor	SMD-1206	12
J1	9v Harness	Wire	1

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.

Schematic:

Here is the PCB's schematic:

Technical Diagrams:

Here is some diagrams relating to the project:

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