PEPS Raspberry Pi Expansion Port Status Monitor

Introduction

Remove the need dig through the component box and attach random LEDs, Logic probe or fire up the Scope just to quickly check any GPIO pin output status.

PEPS simple and safe to use Pi Expansion Port Status monitor board will assist with instant visual information on all GPIO port status and is exactly what you need!

Ideal for:

• Experimenters
• Developers
• Education, Schools and Universities
• Classrooms and Workshops
• STEM Learning
• Engineers and Designers
• R&D and Testing
• A super little gadget for the toolbox

PEPS is a Raspberry Pi Expansion Port Status monitor board, with an LED on each port, that is neatly packaged in a compact PiHat mechanical size.

PEPS has a convenient GPIO chart on the rear.

PEPS example with stacking header fitted

PEPS fitted to a Raspberry Pi

PEPS fitted to a Raspberry Pi, stacked on top of an IPEM PiHat, so quick as easy to see GPIO status's and speeding up project testing and development.

Stacking Header Kit (Raspberry Pi PiHat Female Long Pin Header)

• 1 x Raspberry Pi PiHat Female Long 40 (2x20), Pin Header
• 2 x M2.5 15mm Black Nylon Standoffs
• 2 x M2.5 DIN934 Black Nylon Hexagon Nuts
• 2 x 2.5 6mm Round Cross Head Screws

NB A standard M5 Nut Spinner fits the above. The photo also shows two stacking headers together for example.

Specification and Features

• Super easy to use and compact PEPS board is great to quicky and instantly see what ports are high, or low
• Designed to fit on any Raspberry Pi and be left in place as a 'side PiHat', or temporarily placed over the Raspberry Pi Pin Header for fast GPIO debugging
• Each Raspberry Pi GPIO port has a very low current 5mA LED, with 5K1 series resistance, so should not to affect the pin state and minimize current.
• GPIO port LEDs are group coloured to assist with fast and instant identification of a GPIO type and status
• Power 5V and 3V3 LEDS to confirm supplies are up on all four power pins. This is also ideal for other clones of the Raspberry Pi.
• The PEPS board is the same size as a Pi Zero (65 x 30mm)
• PEPS is self powered from the individual GPIO outputs

The stacking Header is available separately. These can be multi-stacked too to give even more headroom. The underside of the PEPS board has a convenient quick lookup of all the Raspberry Pi Pins, Power and GPIOs

PEPS Kit

• 1 x PEPS Raspberry Pi Expansion Port Status Monitor Board

o SMD (Surface Mounted Components) Fully Populated.

o Board Fully Tested

· 1 x Raspberry Pi 40 Pin Stacker Header with Standoff and Fixings.

Updates

12th February 2025

Available on eBay

GitHub

Further details and updates maybe also be found on our GitHub

Further Information

Additional information, and other technical details on this project, maybe found in the related repository pages.

Repository Folders

• Code(Code examples for Arduino IDE and Platform IO)
• Datasheets and Information(Component Datasheets, Schematics, Board Layouts, Photos, Technical Documentation)
• Certification(Related Repository Project or Part, Certification Information)

Repository Tabs

• Repository Tabs
• Wiki (Related Repository Wiki pages and Technical User Information)
• Discussions (Related Repository User Discussion Forum)
• Issues (Related Repository Technical Issues and Fixes)

We value our Customers, Users of our designs and STEM Communities, all over the World. Should you have any other questions, or feedback to share to others, please feel free to:

Visit the related Project Repositoriesplus the related Discussions and Wiki Pages. See tab in each separate repository.

Project Community Information can be found at https://www.hackster.io/DitroniX

DitroniX.net Website - Contact Ushttps://ditronix.net/contact/

Twitter: https://twitter.com/DitroniX

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LinkedIN: https://www.linkedin.com/in/g8puo/

Dave Williams, Maidstone, Kent, UK.

Electronics Engineer | Software Developer | R&D Support | RF Engineering | Product Certification and Testing | STEM Ambassador

STEM

Supporting STEM Learning

Life is one long exciting learning curve, help others by setting the seed to knowledge.

Should you have any thoughts, or have a challenging application and would like to beta test a board, please let me know.