As analogue TV slides from reminiscence, there’s a aspect of it that’s fondly remembered by a band of fans. Teletext was an digital viewdata info service digitally encoded within the body blanking interval, and a TV set with a decoder chip would offer entry to many pages of reports and different providers all displayed within the attribute brightly coloured block graphics. It went the best way of the dinosaur with the demise of analog TV, however for [Nathan Dane] the flame is saved alive with his own private version of the BBC’s CEEFAX service.
He has a selected enthusiasm for analog TV, and as such has his personal in-house channel served by a UHF modulator. He shares with us the story of how he arrived at a teletext service, earlier than writing code to scrape the BBC information and climate web sites and populate his modern-day CEEFAX. Behind all of it is a Raspberry Pi, with a vbit-pi board injecting the teletext sign onto the video, and raspi-teletext creating the pages from supply materials derived from a set of customized scraper scripts.
We like this undertaking lots, as a result of whereas it’s not the first Pi teletext system we’ve encountered, the usage of a scraped stay feed makes it one of the crucial artistic.
Thanks [kwikius] for the tip!