Breadboard Power Supply

Overview

The Breadboard Power Supply Module [Product Link] is ideal for connecting power to breadboard and robotic projects.

Features

Breadboard Power Supply Module
Breadboard Power Supply Module
  • Output Voltage: 3.3 and 5V switchable
  • Output Current: 700mA maximum
  • Two way independent control
  • Can be switched to 0V, 3.3V, 5V
  • 2 sets of 3.3V, 5V DC output pins

Description

This module allows you to easily connect a power source to your breadboard circuit.

Pins

This board has a total of 24 pins. 16 of these pins are for output power connections, out of which 8 pins are on the top side and 8 pins are on the bottom side of the board. The other 8 pins are for output voltage selection of the bottom pins using jumpers.

Output Voltage on top pins:
2 pins for +5V
2 pins for +3.3V
4 pins for GND

Output Voltage on the bottom pins is selected by the jumper:
When the jumper connects the 3.3V pin and one of the OFF pins – 2 pins for +3.3V and 2 for GND
When the jumper connects the 5V pin and one of the OFF pins – 2 pins for +5V and 2 for GND
When the jumper connects both the OFF pins – 4 pins for GND (0V)

The jumper on the right side controls the output voltage of the bottom 4 pins of the right side, while the jumper on the left side controls the output voltage of the bottom 4 pins of the left side.

Breadboard Power Supply Pins
Breadboard Power Supply Pins (Click to Enlarge)

These pins are shown in the right hand side image. All output pin pairs have positive voltage on the left hand side pin and negative voltage (GND) on the right hand side pin. The blue colored rectangle shows the push-to-on switch.

  • The red colored rectangle shows the jumper that enables 5V output on the pins marked with red ovals.
  • The green colored rectangle shows the jumper that enables 3.3V output on the output pins marked with green ovals. If the jumper is placed on the middle two pins (marked ‘OFF’), the voltage on the output pins will be 0V.
  • The output pins marked with orange ovals always give a 5V output and are not dependent on the jumpers.
  • The output pins marked with blue ovals¬†always give a 3.3V output and are not dependent on the jumpers.

When using this supply with the Arduino boards and servo motors (or other sensors that are not powered directly from the Arduino board), remember to connect the negative pin on the bottom side to either of the GND pins of the Arduino board to create a common GND.

Power

The module can be powered in 2 ways:
1. By using the DC jack – from a 9V battery with a 2.1mm center-positive connector. The power source to be connected here can be anywhere from 6.5 to 12V.
2. By using the USB port – from a computer with a two-way USB-A plug connector or wire.

After connecting the power source, simply push the button, and you are good to go! The green LED is ON when an input power source is connected and the button is pushed, and may start to diminish in intensity if the power from the source gets low.

Possible Application Areas

This module can be used in any project where you need a constant 3.3V or 5V supply from a source of higher voltage and is ideal for use with breadboards [Link].

Did you create a project using this product? Leave details/links below!

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