You might be asking yourself: why the ZX Spectrum? Radiohead is from the UK, but that’s not the complete picture. The two minutes of tones might sound unfamiliar to a modern computer user, but back in the day, audio tones were used to communicate over phone lines and to load and save programs via cassette tape recorders. managed to find it, play it, and record it for all of us (see video below). At the end of the bonus material is a strange noise that turns out to be a ZX Spectrum Basic program. The new release contains some bonus material. However, we all couldn’t help but appreciate their new remastered release of OK Computer. We’ll admit that only a few of us here at Hackaday are Radiohead fans. Posted in Arduino Hacks Tagged diy, hack, typewriter Check out the video below for a demo and teardown and if you prefer Raspberry Pis then check out this mechanical typewriter hack. This project can be a great starting point for anyone who wants to hack their grandpa’s old typewriter or make one in order to annoy the guy sitting next to them. This forms the traditional scanning keyboard matrix and the whole thing is managed in the Arduino code ( available as a zip file). CD4515, 4×16 line decoders work to activate the optical signals and the CD4067, 16×4 multiplexers are used to return the scans. In order to enable the wiring of 50 signals to an Arduino Leonardo, multiplexers and decoders are employed. Every time a key is pressed, the corresponding device sends a signal to an Arduino. The circuit board is so designed that the hammer arms take a position in obstructing the opto-interrupters.
The project uses no less than 50 photo interrupters mounted on a custom PCB that mounts directly under the typewriter itself. In his project, hacked a German Olympia Monica typewriter into a USB keyboard. Are you an angry programmer? Do you get the frequent urge to smash the return key or space bar after finishing every single line of code? Well then ’s typewriter keyboard is just the thing for you.
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