Paper Terminal over ESP32 RS232-to-Wifi to Telnet on Busybox on Termux (Android), with ECL & Fortran

This shows a Brother EP 44 dumb terminal connecting to a phone-based Linux environment on my Nokia 6, Termux, by way of using a RS232 to Wifi converter on an ESP 32 board (Wemos Lolin32 Lite), joining the phone's hotspot and from there a Telnet server on Termux' Busybox. Finally, Embedded Common Lisp & Hello World in Fortran (gfortran) are demonstrated. EDIT: Backspace you get with stty erase Ctrl-v Ctrl-h, so the shown trick in Lisp is not needed! #terminal #lisp #android #esp32 #rs232