MB102 Breadboard power supply module 3.3V/5V

Here is a short description of the MB102 Breadboard Power Supply Module (3.3V/5V):

• What it is: A plug-and-play power regulation board designed to snap directly onto the power rails of a standard MB102 solderless breadboard.

• Key Specs:

  • Input Voltage: 6.5V to 12V DC via standard $2.1\text{mm}\times 5.5\text{mm}$ barrel jack, or 5V DC via USB Type-A / Mini-USB port.

  • Output Voltage: Selectable 3.3V DC or 5V DC (plus an OFF setting) independently configured for both power rails using onboard jumper pins.

  • Maximum Output Current: Up to 700mA.

• Key Features: Onboard power switch, green LED power indicator, dual independent rail control, and male USB output pins for auxiliary 5V power taps.

• Common Uses: Providing clean, dual-voltage power to Arduino, ESP32, STM32, and digital logic circuits during prototyping.