Breadboard Power Supply Module

This Breadboard Power Supply Module is a compact, plug-and-play power regulator designed to easily deliver 3.3V and 5V to standard MB102 breadboards. Ideal for beginners and advanced users alike, it provides clean and stable voltage to your circuits without needing an external voltage regulator setup.

The module accepts a DC input via a barrel jack or USB and features dual voltage rails (switchable between 3.3V and 5V) with independent toggle switches. Whether you’re prototyping with Arduino, ESP8266, ESP32, sensors, or any 3.3V/5V logic device, this module offers a reliable power interface.

Key Features:

• Dual Voltage Output: Independently selectable 3.3V or 5V on each power rail

• Dual Power Inputs: Accepts DC barrel jack (6.5–12V) or USB power

• Breadboard Compatible: Fits perfectly onto standard MB102 breadboards

• Onboard Power Switch: Easily toggle power without unplugging

• Status LEDs: Indicates power availability for each rail

Specifications:

• Input Voltage: 6.5V – 12V DC (via barrel jack) or 5V DC (via USB)

• Output Voltage: 3.3V and/or 5V (selectable via jumper caps)

• Max Output Current:

  • 5V rail: up to 700mA

  • 3.3V rail: up to 200–300mA (depending on onboard regulator)

• Regulator ICs: AMS1117 or equivalent

• Output Channels: Dual power rails (left and right sides of the breadboard)

• Compatibility: Designed for MB102 breadboards, but fits other full-size boards

• Connectors: 2.1mm barrel jack input, USB type A input

• Onboard Switches:

  • ON/OFF switch

  • Voltage select jumpers (per rail)

Applications:

• Arduino and ESP development

• Logic circuit testing

• Prototyping with sensors and modules

• 3.3V and 5V microcontroller projects

• Rapid breadboard-based circuit design

This module is a must-have for electronics enthusiasts, students, and engineers looking for a fast and reliable way to power their breadboard-based projects.