Keypad Interface Module Reverse Engineers Pinouts So You Don’t Have To

If you’ve scavenged some random keypads and want to reuse them in a project without the hassle of figuring out the pinouts, then [Cliff Biffle] has an interface module for you. The Keypad Go …

Students 3D Print Low Cost Braille Keypad

Numerical keypads are common entry devices for everything from home security systems to phones and more. Unfortunately, a great deal of them are difficult to use if you’re visually impaired. …

Deepdeck: Going Beyond The Macro Pad

We’re used to the idea of a macropad, a small extension keyboard for your computer whose keys can be programmed to the functions of your choice. They can be made in many ways, but they all fo…

Odd Inputs And Peculiar Peripherals: A MacroPad With A Handy Layout Screen

The idea of a macro keypad is a great one, a set of keys programmable with frequent but complex tasks. But once programmed, how can the user keep track of which key does what? To save the world fro…

Number Like It’s 1234 AD With This Cistercian Keypad

Don’t feel bad if you don’t know what Cistercian numbers are. Unless you’re a monk of the Order of Cistercia, there’s really no reason for you to learn the cipher that stret…

Improved Technique For Resistive Divider Keypads

[Lauri Pirttiaho] from the [Swiss Knife of Electronics] channel explains how to simplify your resistive divider keypad design on Hackaday.io. The usual method involves building a resistive ladder t…

Miss The Predictive Text From Your Old Nokia? Build Your Own T9 Keypad

Do you miss the mind-blowing typing speed of your old Nokia brick with predictive text turned on? Well, so did [Guy Dupont], so he created a USB keypad with T9 predictive text built-in to turn typi…