Antique Phone Resurrection Using Raspberry-Pi @Raspberry_Pi #PiDay #RaspberryPi
It’s not just an old rotary phone, it’s an old-timey rotary phone. A Raspberry Pi re-fit on two olds and a timey. That’s Here’s more from Mark Lister via hackster.io:
Last year I bought an old telephone (made in about 1895) from an auction. It was of course completely incompatible with modern phone systems so I removed the insides, threw in a Raspberry-Pi and converted it into a mobile phone. The original handset works for the sound and microphone too. I squeezed in a GSM hat (which holds a SIM card), a USB speaker and a UPS card. I managed to connect it to the rotary dial with the existing wires directly onto the Pi GPIO and write code to convert the pulses into digits that I could send to the SIM card to dial with. The speaker is there to play an mp3 sound of an old telephone ringing.
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Each Friday is PiDay here at Adafruit! Be sure to check out our posts, tutorials and new Raspberry Pi related products. Adafruit has the largest and best selection of Raspberry Pi accessories and all the code & tutorials to get you up and running in no time!