This store is temporarely paused. Due to a family medical emergency I am unable to ship orders at this time.
Orders placed starting in May 2024 will receive either a rev2 or a rev3 board -- they're functionally equivalent, but the rev3 is slightly easier to make.
There's nothing quite like the feel of a chunky physical keypad, like on an old phone or ATM. It adds a certain feel, a certain groundedness, to a project's user interface.
Interfacing with a keypad isn't hard, but it can be tedious and requires a bunch of pins. Once you get the keypad in your hands, you've still got to
If you were trying to build something that includes a keypad, all this work on the keypad itself can seem like a lot. If your project needs to run some code on that microcontroller...well, having to also scan a keypad can add a lot of complexity.
I got tired of all that, so I built this widget. It's called Keypad Go, because that's what it do: make keypad go.
Keypad Go is a tiny backpack you slap on the back of a typical keypad (or wire up to a more elaborate system of your choice). You provide a USB-to-serial cable (or old-school serial port), and Keypad Go will have you up and running within two minutes, even if you don't know anything about the keypad.
Seriously. Keypad Go will:
If you ever need to change the settings -- or move it to a different keypad -- there's a SETUP button that will restart the process. Easy. No software required beyond your usual way of talking to a serial port.
There's a pretty detailed manual, a well-commented schematic, and open-source firmware (all linked below)!
Normally, I ship orders about once per week.