Blinky Thunder

Blinky-Thunder

This project is fairly simple but interesting to do. It involves LEDs (which blink) attached to a PCB shaped like a thunderclap. It has two main microcontrollers: the NE555P and CD4017, as well as resistors for the LEDs and two capacitors. I decided to do this project because I realized that it wasn't very complicated to do and it would teach me new things, such as designs and slightly more complicated logic of schemes, as well as routing with an irregular shape. Here are some images of the electronic schematic, PCB design, and 3D PCB layout for both layers.

And finally, here is the Bill of Materials (BOM) of all the components included in the project.

PCB: Custom lightning-bolt shaped board — $4.00 (1 unit)

NE555P: Precision Timer IC (Clock pulse generator) — $0.50 (1 unit)

CD4017: Decade Counter IC (LED sequencer) — $0.60 (1 unit)

LEDs (Red): 5mm Light Emitting Diodes — $1.00 (10 units)

Potentiometer: Variable Resistor for speed control — $0.80 (1 unit)

Resistors: Current limiting and circuit configuration — $0.25 (5 units)

Capacitors: Timing and power decoupling — $0.30 (2 units)