@EngThi

A handheld scientific calculator built around a custom ESP32-S3 PCB, with a physical 7×7 keypad, 2.2-inch touch display, microSD, USB-C, LiPo power, Wi-Fi, and an OV5640 autofocus camera. It can solve typed expressions locally and capture equations for OCR/AI-assisted step-by-step solutions, inside a custom calculator.

Alpha version (α) A simple, modular, and interactive Linux shell written in C, with command history, aliases, and the use of wrappers for system command executions