including the latest Arduino Nano Every model. The I2C protocol only requires two wires to connect external devices. One wire (called serial data or SDA) is responsible for transferring data ...
The below circuit diagram shows the complete hardware wiring setup of the Arduino-based Smart Walking Stick for the Blind ...
inspiring [James] to design a completely new module based on an Arduino Nano. Hooking it up to the Psion’s data bus was a simple matter of wiring up the eight data lines to the Nano’s GPIO ports.