This document provides a developer guide for the Tiny Code Reader from Useful Sensors, a small, low-cost hardware module that reads QR codes. It covers connecting, mounting, powering up, reading data, configuration, sensor characteristics, example code, privacy considerations, and an appendix with data formats and CAD files.
ZPUI (Zippy UI) is a lightweight control interface for single-board computers such Z the Raspberry Pi, designed to provide easy access to system information and control functions via a small I2C screen and a few buttons. It aims to solve the common frustrations of accessing and debugging SBCs without a full keyboard, monitor, and network connection.
