Proteus Design Suite Professional — electronics simulation with SPICE, PCB layout and microcontroller co-simulation.

Altium Designer Professional Setup — PCB design with schematic capture, interactive routing and 3D board visualization.

📐 Altium Designer 2026 - full PCB design software unlocked with schematic capture, PCB layout, 3D visualization, simulation, and all pro features activated.

🔌 Proteus Design Suite 2026 - full EDA software unlocked with schematic capture, PCB layout, circuit simulation, microcontroller simulation (Arduino/PIC/AVR), and all pro features activated. No trial limit. Free download for Windows.

4 Bit ALU with VHDL