The Twadio plugin provides radio transmitter control and content scheduling for servers equipped with the Peaberry software-defined radio. github 
The plugin was developed for a demonstration of live note sharing at the MicroHAMS Digital Conference.
Configuraton
Double-click the plugin to reconfigure the transmitter for broadcasts initiated from this particular page. Keywords in all-caps are followed by a single number.
Say FREQ in MHz with 1 Hz resolution. e.g. 14.072025
Say PHASE in degrees is neutral at 0.0 with a typical range of -20.0 to 20.0.
Say BALANCE is neutral at 1.0 with a typical range of 0.5 to 1.5. Phase and balance may be obtained from HDSDR channel skew calibration for TX.
Say LEVEL is linear with max at 1.0 and mute at 0.0. Do not use levels higher than 0.5 to avoid clipping due to phase and balance adjustments.
See the SDR Control Panel for an example of the plugin. It will show a status of 'closed' if it cannot connect to a radio.