# DigiSim Circuit Playground

> Main interface for designing and simulating digital circuits with drag-and-drop components and real-time simulation.

## Key Areas
- **Component Palette**: Organized library of logic components
- **Design Canvas**: Main circuit construction workspace
- **Connection Layer**: Visual wire routing system
- **Control Panel**: Simulation controls

## Component Categories
- **Input**: Switches, Clock, Constants
- **Logic Gates**: AND, OR, NOT, XOR, NAND, NOR, XNOR, Buffer
- **Sequential**: Flip-flops, Latches, Registers, Counters
- **Memory**: RAM, ROM, 8-bit registers
- **Arithmetic**: ALU, Adders, Comparators
- **Output**: Lights, 7-segment displays, Oscilloscope

## Simulation
- **Event-Driven Engine**: Real-time processing with state management
- **Component Evaluation**: Specialized logic for each component type
- **Bus Resolution**: Handles multiple drivers on shared connections

## Features
- **Template Integration**: Educational circuits with category filtering
- **Export System**: PNG export and circuit file save/load
- **Subscription Tiers**: Component access based on FREE/BASIC/PROFESSIONAL plans
- **Performance**: Optimized rendering and simulation for large circuits