We have a Pager that works, but no pager service is available. People have moved on to phones.
Amateur radio receivers
- Incoming SMS
- Outgoing Landline
Circuits based on AVR microcontrollers (?C) from Atmel. “little powerful things”
AVR Circuits by Vassilis Serasidis – AVRsite
A simple and small AVR board to develop your applications. It consists of few, cheap and ordinary components like LEDs, Voltage regulator and capacitors by Vassilis Stergiopoulos on AVR Assembly.