Rotary dials are long gone since everything went digital. Now every device is equipped with keys or touch sensitive input interfaces. But if you feel a little nostalgic about old times you may find this project really interesting. This is a custom made mobile phone with rotary dial for input. We already know that building mobile phone isn’t that hard when you already have GSM modules around. All you need it so hook everything to microcontroller and LCD and you are up to go.
jaromir instead of adding buttons or touch sensitive LCD went with simpler but yet interesting solution – a rotary dial. The phone is controlled with 8-pin DIP NXP LPC810 ARM Cortex-M0+ microcontroller. He had to squeeze everything to fit 6 IO pins. Shift register solves a lot here. No matter if it looks cool, making calls, entering PIN numbers can be real pain, but it works. As a phone it has huge enclosure due to large rotary dial size. You will definitely amaze your mates when taking calls. More pictures of it at Picasa.