From George Smart's Wiki
This page contains my source code for my Arduino RTTY transmitter. This device uses an Arduino to control a DDS-60 (Analog Devices AD9851) DDS IC, which in turn creates the required frequencies to transmit RTTY at 45.45 baud (approx) with 170 Hz shift.
The code is a selection of modules glued together, but works well. See the YouTube video below for a demonstration.
This work is based around the work of the following two people, whom in turn have provided links for their works. Thanks guys!
- [RADIO] Baudot - Tim Zaman
- Controlling an AD9851 DDS with an Arduino