The MB102 module provides regulated 5V and 3.3V outputs directly to standard breadboards, making it a convenient power source for microcontroller projects, sensor testing, and low-voltage logic circuits. It supports both barrel jack and USB Type-A input, with independent voltage selection for each rail.

Specifications

• Input Voltage:
  • DC Barrel Jack: 6.5V to 9V
  • USB Type-A: 5 V
• Output Voltage:
  • Selectable 3.3 V or 5 V (via jumpers)
  • Two independent channels (left and right breadboard rails)
• Maximum Output Current: Up to 700 mA (per rail, regulated by AMS1117)
• Voltage Regulators: AMS1117-3.3 and AMS1117-5.0
• Power Control: ON/OFF push switch with status LED
• Output Pins:
  • 2 × 3.3 V
  • 2 × 5 V
  • 4 × GND

Features

• Provides clean 3.3 V and 5 V power directly to breadboard rails
• Dual-channel output with independent voltage selection
• USB and barrel jack input options for flexible power sourcing
• Onboard headers for external power tapping
• Reverse polarity protection and onboard filtering capacitors
• Compatible with 400- and 830-point solderless breadboards
• Ideal for Arduino, ESP8266, STM32, and sensor module