dear list, i am looking for information on the history of GPIO pins, especially if they are standardised. i find it hard to search for such books/articles because it is a kind of strange keyword and most scholarly literature i find it of a technical and not historical character. here is a documentation page showing the artefact: https://www.raspberrypi.org/documentation/usage/gpio/ thanks for your assistance, -- maxigas, kiberpunk FA00 8129 13E9 2617 C614 0901 7879 63BC 287E D166 http://relay70.metatron.ai/ In Solidarity with Library Genesis and Sci-hub http://custodians.online Share this letter - read it in public - leave it in the printer. Share your writing - digitize a book - upload your files. Don't let our knowledge be crushed. Care for the libraries - care for the metadata - care for the backup. Water the ❀❀❀❀❀ - clean the volcanoes.