Many thanks for this, Grant. This reminds me of something I've been mulling over for awhile: Scheduled streaming. I've been discussing it with Daniel Fishkin, who is working on a solar-powered stream in Virginia, USA. It would be great to have the stream turn off at night.
To really save power in a solar situation, I think we would need an external microcontroller that turns the Pi on/off (along with the 4G hardware). Several off-the-shelf boards exist [1] to deal with power supply switching, LiPo battery charging, etc. The Witty Pi [2] is the most full-featured I've seen: includes a switchmode power supply, battery-backed realtime clock, MOSFETs to control the power to the Pi, and software scripts to communicate over the GPIO pins. Unfortunately the simple installer from the Witty Pi manufacturer doesn't seem to work with the streambox image.
The addition of Codec Zero support in the streambox image really changed the game for me, and I wonder if Locus Sonus would consider adding support for either:
* An option in the web interface for stream start/stop times * Built-in support for a board like the Witty Pi (scheduled startup/shutdown of the Pi)
(Disclaimer: I haven't tried the Witty Pi - just passing on experiences from a friend.)
-Zach
Links: ------ [1] https://thepihut.com/collections/raspberry-pi-power-management-hats [2] http://www.uugear.com/product/witty-pi-3-realtime-clock-and-power-management...