From the forums: Using a PS/2 keyboard with Raspberry Pi GPIOs #piday #raspberrypi @Raspberry_Pi

NewImage

Thanks to Drew for sharing this post with us! Check out more here and in the Adafruit forums.

Why?

Maybe you want to free up a USB port (especially on Pi-zero or Pi-aplus).

Maybe you have piles of PS/2 keyboards gathering dust (perhaps one is a much treasured Model-M).

Maybe you are writing your own OS and want keyboard access without having to write a full USB stack.

Background

The Raspberry Pi is great for hacking with, but it is hard to get keyboard input without using USB. If you’re running Linux that’s not a problem, but if you’re running your own operating system it’s a problem, especially if you don’t feel like writing a complete USB stack.

The PS/2 keyboard interface is a very simple serial protocol, so I wanted to design a board that would take a traditional PS/2 keyboard and convert it to something that could be read with standard Pi GPIOs.

This will be useful for the Advanced OS course I teach, as it is easy to get video output going but until now we couldn’t get keyboard input, only serial port which can be a bit awkward (you need another machine around to use your OS).

Read more.


2358Each Friday is PiDay here at Adafruit! Be sure to check out our posts, tutorials and new Raspberry Pi related products. Adafruit has the largest and best selection of Raspberry Pi accessories and all the code & tutorials to get you up and running in no time!


Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.

Join 28,000+ makers on Adafruit’s Discord channels and be part of the community! http://adafru.it/discord

Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Follow Adafruit on Instagram for top secret new products, behinds the scenes and more https://www.instagram.com/adafruit/

CircuitPython – The easiest way to program microcontrollers – CircuitPython.org


Maker Business — Peloton to break ground at a new manufacturing campus in Ohio

Wearables — A costume and a photo op

Electronics — Ew! Sticky!

Python for Microcontrollers — Python on Microcontrollers Newsletter: CircuitPython tops Tom’s Hardware Best RP2040 Boards 2021 and more #Python #Adafruit #CircuitPython @micropython @ThePSF

Adafruit IoT Monthly — Toddler Clock, Predictive Weather Station, and more!

Microsoft MakeCode — Arcade Beginner Skillmap

EYE on NPI — Maxim’s Himalaya uSLIC Step-Down Power Module #EyeOnNPI @maximintegrated @digikey

New Products – Adafruit Industries – Makers, hackers, artists, designers and engineers! — New Products 06/09/21 feat. #Adafruit #Trinkey #QT2040 – RP2040 USB Key with Stemma QT!

Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at AdafruitDaily.com !



No Comments

No comments yet.

Sorry, the comment form is closed at this time.