The void left by the parallel port | by Tore Lundqvist | Medium
Raspberry Pi 64-Bit Parallel Port - YouTube
Activate the TTL serial port of the Raspberry Pi and verify that it is working. – Howto Raspberry Pi
Raspberry Pi UART Hat Adds Extra Serial Ports And More (video)
9.7 inch ink screen electronic paper electronic paper parallel port communication 1200×825 for Raspberry Pi 3 B+ STM32|Replacement Parts & Accessories| - AliExpress
SmartParallel - serial to parallel printer interface - Machina Speculatrix