Elegoo Power Supply Module Pinout A Comprehensive Guide

When working on electronics projects, a reliable power supply is essential for ensuring stable operation. The Elegoo Power Supply Module is a popular choice among hobbyists and professionals for its versatility and ease of use. Understanding the pinout of the Elegoo power supply module is crucial for correctly integrating it into your projects. This article provides a detailed overview of the Elegoo Power Supply Module pinout, breaking down its key pins and their functions to help you optimize your electronics setup.

Overview of the Elegoo Power Supply Module

The Elegoo Power Supply Module is designed to fit standard breadboards, making it an excellent tool for powering your circuits without the need for bulky external power supplies. It typically takes a DC input (usually from a 6.5V to 12V adapter) and converts it into regulated 3.3V and 5V outputs. These outputs are commonly used to power microcontrollers, sensors, and other electronic components. Knowing the pinout layout allows you to safely connect your components and avoid damaging your devices.

Power Input Pins

The main power input pins on the Elegoo Power Supply Module are where you connect your DC power source. This is usually done via a barrel jack or a set of pins labeled as Vin and GND.

Vin (Voltage Input): This pin accepts the input voltage, typically from 6.5V to 12V DC.

GND (Ground): This is the common ground reference for the input power and the module.

Ensuring the correct polarity and voltage is critical to prevent damage to the module.

5V Output Pins

The module provides a regulated 5V output, which is essential for many microcontroller boards such as Arduino Uno and other 5V logic devices. The 5V output pins are clearly marked:

5V: This pin outputs a steady 5V supply.

GND: Ground reference for the 5V output.

These pins can be used to power sensors, modules, and other peripherals requiring a 5V supply.

3.3V Output Pins

Many modern electronics components and microcontrollers operate at 3.3V logic levels. The Elegoo Power Supply Module includes a 3.3V output pin:

3.3V: Provides a regulated 3.3V supply.

GND: Ground for the 3.3V output.

This output is especially useful for powering devices like ESP8266, ESP32, and other low-voltage components.

Power Select Jumpers

Some versions of the Elegoo Power Supply Module include jumpers or switches to select the output voltage or to enable/disable certain outputs. These jumpers can configure the module to:

Enable 3.3V output.

Enable 5V output.

Select the power source for the breadboard rails.

Correct jumper settings ensure the module outputs the desired voltage without conflict.

Breadboard Rails Connection

The module is designed to fit snugly onto a breadboard, providing power directly to the breadboard's power rails. The pins along the sides of the module connect to the breadboard rails:

One side typically provides 5V and GND.

The other side provides 3.3V and GND.

This arrangement allows easy access to regulated voltages while prototyping.

Protection Features

The Elegoo Power Supply Module usually includes built-in protections such as:

Over-current protection: Prevents damage from short circuits.

Thermal shutdown: Protects the module from overheating.

Reverse polarity protection: Guards against incorrect input connections.

Understanding the pinout and these features helps users avoid common pitfalls and maintain safe operation.

Using the Module with Microcontrollers

When integrating the Elegoo Power Supply Module with microcontrollers like Arduino or Raspberry Pi Pico, connect the module’s 5V or 3.3V output to the microcontroller’s power input pins. Always ensure the ground lines are connected to establish a common reference point, which is essential for stable and reliable operation.

Troubleshooting Pinout Issues

If your circuit fails to power correctly, verify the following:

Correct polarity on the input power pins.

Proper jumper settings for voltage selection.

Secure connections on the breadboard.

No short circuits on the output pins.

Using a multimeter to check voltages at the pins can help identify issues quickly.

The Elegoo Power Supply Module is a versatile and user-friendly power supply solution for breadboard projects. Understanding its pinout—including the power input, 5V and 3.3V outputs, ground pins, and jumper settings—is essential for proper usage. By following this guide, you can confidently integrate the Elegoo Power Supply Module into your electronics projects, ensuring stable and reliable power delivery. Whether you are a beginner or an experienced hobbyist, mastering the pinout will enhance your prototyping efficiency and project success.