| ESP32-WROOM Module | 1 | Main microcontroller with Wi-Fi + Bluetooth |
| AO3400 N-Channel MOSFET | 1 | Controls LED brightness with PWM |
| EC11 Rotary Encoder | 1 | Used as a scroll/volume/input knob |
| Hotswap Switch Socket | 7 | Allows switch replacement without soldering |
| 7x LED 0805 (Optional) | 7 | Per-key backlight LEDs (optional use) |
| ME6211 LDO 3.3V Regulator | 1 | Provides stable 3.3V for ESP32 and components |
| USB Type-C 6P (Power Only) | 1 | Power input via USB |
| Charging/Discharging Module | 1 | 2A capable, supports battery power management |
| 120Ω Resistor | 7 | For LED current limiting |
| 10kΩ Resistor | 2 | Pull-up resistors for I2C or encoder |
| 10µF Capacitor | 1 | Power line stabilization |
| LED 1206 (Power LED) | 1 | Indicates power status |
