Making sounds/music with Maas
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sharing also dataflow's embeddedness in the Maas (where it is exactly. how the current is there at the moment, compared to how the current was yesterday, and last week. how much energy it has to stay online, before it needs to go to sleep for a while)
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Dimensions: 120cm long x 100cm wide and 70cm high
Waterwheel: 8 blades, 70 cm diameter
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Update on Maud's uncle - Kessel
Preference for an urban space
A narrowing space, a decent flow
Maastricht
Jeker
Looking for local guardians - Jan van Eyck?
A spot next to a path in a more 'natural' environment
(notes after meeting 30.05.2024)
the flow it has is the flow we need
do the work and try outs live and in situ
leave in kessel for at least august
add solar panel so we have a working basis
call the maas
website as a broadcast
start already to design its most minimal website
plan for some presence (liveness) during ddw
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An autonomous floating raft that can be in the water for August.
Just reliable enough autonomous electronics.
Nice looking website that displays live-data.
(Preliminary experiments with a field recorder and hydrophone.)
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try out cell phone call
>> works, but currently not at same time as data
add hydrophone (covered i2s mic?)
add omni mic
get one klangnetze object in case we want to try higher quality sound
add temperature sensor (neuhold DS18B20)
hydrophone (i2s mic?)
add uC for power management: signal pi to sleep, then cut off power, and wake up after timer. it could also monitor battery voltage and only wake up if time passed AND battery level ok.
since the pi will be sleeping sometimes, we should have a separate monitoring server which can say 'sleeping until 9am, check back then' or so.
given the power consumption of the pi+modem up and running: 2W (5V 400mA), an 11Wh (3000mAh 3.7V) Li-Ion battery only provides around 5.5 operating hours. of course we can use a bigger battery, e.g. a 10000mAh 3.7V lipo (37Wh) should provide around 18 hours of uptime. but it's a balancing act that depends on our charge rate. As our charge rate depends on sun and river power, this will be variable.
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Hot glue gun
piezos, omni capsule
audio-interface for pi
omnis
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mosfet/relay -
audio-interface for pi
dutch sim-card with good data plan
schottky diode
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https://www.conrad.at/de/p/modelcraft-rb350200-0a101r-getriebemotor-12-v-1-200-227579.html
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