Breadboard Power Supply Module 3.3V 5V HW-131

HW-131 Breadboard Power Supply with 3.3V/5V Dual Voltage Output

Unlock the full potential of your electronics projects with the HW-131 Breadboard Power Supply Module, an indispensable tool for anyone from students to seasoned hobbyists. Prototyping circuits on a breadboard requires a stable and reliable power source, and this module is engineered to provide just that. It eliminates the need for bulky benchtop power supplies or messy battery wiring by plugging directly onto a standard MB-102 breadboard. At Bigyan Project, we've sourced this module because it simplifies the development process for projects involving Arduino, ESP32, and other microcontrollers. With its dual-input option (USB or DC Jack) and independently selectable 3.3V and 5V outputs for each power rail, this compact device offers unparalleled flexibility and convenience for all your DIY electronics needs in Bangladesh.

Product Specifications

Features

• Dual Voltage Output: Provide 3.3V and 5V simultaneously, perfect for mixed-voltage circuits.
• Independent Rail Control: Set different voltages for the top and bottom power rails of your breadboard.
• Flexible Powering Options: Power your project from a laptop's USB port, a power bank, or a standard DC wall adapter.
• Onboard Power Switch: Easily turn your entire breadboard circuit on or off without disconnecting the power source.
• Compact Form Factor: Plugs directly into the breadboard, saving valuable workspace and reducing wire clutter.
• Clear Power Indication: A bright green LED instantly confirms that the module is powered on.
• External Power Pins: Includes extra header pins to supply 3.3V and 5V to components outside the breadboard.

Applications / Use Cases

• Powering Arduino, ESP8266, ESP32, and Raspberry Pi Pico projects.
• Testing digital logic ICs and analog circuits that require 3.3V or 5V.
• Developing and prototyping sensor networks and IoT devices.
• Educational kits for teaching electronics principles in schools and universities.
• A stable power source for hobbyist robotics and automation projects.
• Running small, low-power microcontroller-based systems for extended periods.

User Guide / How to Use

1. Align the module's power pins with the vertical power rails on your MB-102 breadboard.
2. Gently and evenly press the module down until it sits securely on the breadboard.
3. Connect a power source by plugging a DC adapter (6.5V-12V) into the barrel jack or a USB cable into the USB port.
4. Use the two selection jumpers to set the desired voltage (3.3V or 5V) for the top and bottom power rails.
5. Press the onboard power switch to supply power to your breadboard circuit. The green LED will light up.

Frequently Asked Questions (FAQs)

• Q: Can I get 3.3V on one power rail and 5V on the other at the same time?
  A: Yes, the two power rails are controlled independently, allowing you to have a mixed voltage setup.
• Q: What kind of DC adapter is required?
  A: You need an adapter with an output voltage between 6.5V and 12V and a standard 5.5mm x 2.1mm center-positive barrel plug.
• Q: Is it safe to power the module from both the DC jack and USB port simultaneously?
  A: No, you should only use one power source at a time to avoid damaging the module or your power sources.
• Q: Can I use this module to power motors or servos?
  A: This module is designed for low-power electronics. Its 700mA current limit is generally not sufficient for high-current devices like motors, servos, or relays.
• Q: Does this module come with a breadboard?
  A: This listing from বিজ্ঞান প্রজেক্ট is for the HW-131 power supply module only. Breadboards and cables are sold separately.

Challenges and Considerations

• The maximum output current is limited to 700mA, making it unsuitable for high-power applications.
• The physical body of the module may cover a few tie-points on the top rows of the breadboard.
• Ensure your power source (especially USB ports) can supply enough current for your entire circuit.

Compatibility

• Designed specifically for MB-102 style solderless breadboards (both 830 and 400-point versions).
• Fully compatible with all popular 3.3V and 5V logic-level microcontrollers and ICs.
• Works with Arduino boards (UNO, Nano, Mega), ESP32 and ESP8266 modules, STM32, and Raspberry Pi Pico.

Future Enhancement Options

• For advanced users, a small heatsink can be attached to the voltage regulator for improved thermal performance.
• An external capacitor can be added across the output pins for even smoother power delivery in sensitive analog circuits.

Benefits

• Streamlines the prototyping process by providing a clean and integrated power solution.
• Reduces wiring complexity and potential for errors on your workbench.
• Offers a highly portable and cost-effective alternative to expensive benchtop power supplies.
• Enhances the safety of your projects with a stable, regulated low-voltage supply.

Conclusion

The HW-131 Breadboard Power Supply Module is more than just a component; it's a fundamental upgrade to your electronics workspace. By providing a reliable, flexible, and easy-to-use power source directly on your breadboard, it allows you to focus more on your design and less on power management. Whether you're building your first blinking LED circuit or a complex IoT device, this module is the perfect foundation. Get yours from Bigyan Project today and experience a more efficient way to bring your creative ideas to life.

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