The Pithy range of 3D-printable interfaces from ioios is customizable enough to meet the needs of most smart home hobbyists. From the basic — a PIR/temperature sensor — all the way to a loaded screen with dials, buttons and LEDs, the devices are also open source, complete with guides, examples, and, of course, the design files.
The Pithy Dial, Pithy Pixel, and Pithy Screen, each with their own “Plus” version offering a PIR motion sensor, provide a range of features. All boards have a micro-USB socket, so no additional hardware is necessary to program them — all you need is a framework such as Tasmota, ESPHome, or ESPEasy and a platform like Home Assistant or openHAB.
Each of the units also have a rotary encoder and switch, a discrete side switch, and a temperature/humidity sensor. The Pixel even has a 16-LED NeoPixel Ring, while the Screen has a 128x64 OLED display. The form factor is a large consideration in the design — the Pithy range strives to bring together common components used in smart home projects into a practical interface. The small, sleek devices can be a simple way to add remote control to your tv, lighting, heating system, and more, or you can make it an all-in-one remote for your home. In the Pixel, the LED ring serves as a level indicator, while the Screen reveals that information in an easily readable format.
While the line was developed for use with Home Assistant, they do work with a range of platforms and require no apps, no subscriptions, and don’t even require cloud access. The controllers continue to work even if they lose internet access. The hardware is based on a Wemos D1 Mini processor, and the boards were designed in tandem with their casings, aiming to make the component layout logical and comfortable. Sold as open-source kits, they provide all of the components for the user to solder and include all required mounting hardware, as well as the files required to print the case. For those without access to a 3D printer or soldering iron, complete and fully-assembled models are available.
For the final touch of convenient customizability, Pithy devices can also lie flat or be oriented in any of four different mounting options designed to suit any Type-B USB socket. The project is currently live on Kickstarter, where it has more than doubled its original goal to fund purchase of the components.