quick guess: a 12V/10Ah battery can power a pi zero + iqaudio + wifi/dongle for 2-3 days max., you have to prevent discharging. so after a few cloudy days you have to charge the battery. For more reliable setups you'd need more Ah. real world experience appreciated!
A 20000mAh powerbank with real 72Wh capacity powers such a setup for 2 days under ideal conditions, that translates to a 1.5W power consuption, which fits my measurements. If you have a low network signal, power consumption goes up a lot, and operation time goes down. If you're on a nearby wifi, power comsumption is about 0,5W
for a temporary stream on sunny summer days, a special powerbank (eg sunnybag, which allows charging and discharging at the same time) plus a so called solar charger (eg. from Anker, Phaesun etc.) can work for many days. Such a setup fits into the pocket ;)
udo
-- radio aporee 52° 29' 66" N, 13° 25' 26" E ::: maps https://aporee.org/maps/ ::: stream http://radio.aporee.org ::: field radio https://aporee.org/fieldradio ::: miniatures for mobiles https://aporee.org/mfm/
Grant Smith:
Hi Jem
I added some photos to that doc:
https://paper.dropbox.com/doc/Streambox-Off-grid-with-IQ-Audio-Code-Zero-and...
Let me know queries - I d like it to be clear
Thank you
g
On 25 Jun 2021, at 22:04, Jem Finer jemfiner@mac.com wrote:
Hi Grant,
Thanks for putting this together and sharing your notes. Sounds good !
Is it possible to post some photos of your solar panel setup ?
All the best,
Jem
On 25 Jun 2021, at 10:44, Grant Smith grant@soundtent.org wrote:
Hello all
I've been running a test stream off grid in my backyard (http://locus.creacast.com:9001/stream_demo.mp3) for a few days.
This is along the lines of the temporary streams discussed here already. It adds a small solar power unit.
In case useful, I made some notes:
https://paper.dropbox.com/doc/Streambox-Off-grid-with-IQ-Audio-Code-Zero-and...
Thanks
bw grant
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