2 layers90 × 40 mm

LiIon Battery Protection
imguxuuuu/Battery-Protection-PCB
Manufacturing-ready Li-Ion Battery Protection PCB designed using KiCad 9 with complete documentation, Gerber files, simulations, and manufacturing package.
11 parts1MIT
KiCad boards from 2 GitHub repositories tagged “engineering-portfolio”, the most starred first; open any of them in PCBKit.

imguxuuuu/Battery-Protection-PCB
Manufacturing-ready Li-Ion Battery Protection PCB designed using KiCad 9 with complete documentation, Gerber files, simulations, and manufacturing package.

searchyourmind/fpga-highspeed-daq
SystemVerilog DAQ simulation portfolio: 63 tests, 33 E2E scenarios, DDR3 behavioral and PCIe transaction-level models. Separate PCB design study with retained FAILs; no hardware or timing-closure claims.