Phone Caller ID module

[Albert101]

Hello,

I am looking for a simple and easy to build Caller ID module (name and number) for the north american phone system. DC powered with a battery backup if possible.

Thank you.

[SeanB]

Buy a cheap cordless DECT phone, all integrated into there. Cheaper than buying the parts. You can pick it up new for under $30.

[ve7xen]

You could probably also do this with an STM32F0DISCOVERY board or any other low-end microcontroller dev board and some passives. It's just 300 baud FSK. Hacking an analogue modem might work too, if you can find one that actually has a UART onboard and isn't all DSP. Hacking a phone is probably still cheapest and nicest from a UI perspective.

[mikeselectricstuff]

An old modem (or embedded modem module) may do what you want