This is a compact, essential power board used to supply regulated DC voltage directly to a solderless breadboard. It takes a higher voltage input (usually from a wall adapter or battery) and steps it down to the stable 5V and 3.3V levels needed by microcontrollers and electronic circuits.

Key Features:

· Dual Output Rails: Provides two independent power rails (left and right sides), each selectable between 5V and 3.3V via yellow jumper caps. This allows you to power two different parts of a circuit at different voltages.

· Multiple Input Options:

· DC Barrel Jack (“DC-in”): For a standard 6.5V–12V DC wall adapter.

· USB Type-A Port: Can be powered directly from a USB cable (e.g., power bank or PC).

· Terminal Screws: Screw terminals on the edges for loose wires.

· Output Block: Yellow pin headers labeled GND, 5V, 3.3V for easy connection to your breadboard power rails.

· Onboard Protection & Indicators:

· Power Switch: A physical push-button to turn the module on/off without unplugging.

· Power Indicator: A bright green LED that lights up when power is active.

· Safety: Includes reverse-polarity protection and a filtering capacitor to smooth out voltage fluctuations.

· Breadboard-Friendly: Designed to snap directly onto the standard power strips of a breadboard, providing clean, accessible power without messy wiring.