Arduino simplifies things by only using just one coding language. Here's what you need to get started with developing software for the tiny device.

You can see the straight key being pressed by a hobby servo in the image above. The servo is driven by the Arduino, which will transmit the series of letters automatically.

The Arduino uses a shift register to interact with the keyboard’s 8×10 matrix, and the sketch translates any serial data it receives into the keypresses the clone is expecting.

Electron is the followup to Particle's Photon, a Wi-Fi based device with similar capabilities. Both Photon and Electron can use Arduino "sketch" code or code written in Particle's own development ...

The guys at Spiderlabs moved Cody's Arduino sketch for duplicating the master key to the Arduino and tested that it worked on an Onity lock they purchased from eBay before cutting down the components.

That said, the Electron is not intended to be a simple Arduino clone, and it does a very good job of incorporating cloud connectivity into sketch code with Particle-specific functions (sometimes ...

Technical Details and Components The keyboard was built using an Arduino board together with a fuel capacity of controllers, which is then connected to a Raspberry Pi mini computer.

To make that actually work, Robofun paired an Arduino board with some capacitive controllers for the base, and connected that to a Raspberry Pi that linked the keyboard to the TV.