2022-07-18 22:49:18 +03:00
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#!/bin/sh
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# Pin logic
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#selecting pin
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2022-07-20 19:03:17 +01:00
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GPIO=19
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2022-07-18 22:49:18 +03:00
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# "Prepare" it, whatever that means, I just copied it from SO
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if [ ! -d /sys/class/gpio/gpio${GPIO} ]; then
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echo "${GPIO}" > /sys/class/gpio/export
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fi
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echo "in" > /sys/class/gpio/gpio"${GPIO}"/direction
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# old line
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#(while true; do cat sampleaudio.wav; done)
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while true; do
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2022-07-20 19:03:17 +01:00
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if 1 == "$(</sys/class/gpio/gpio"${GPIO}"/value)" ]; then
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arecord -q -f cd -r 44100 -c2 -D hw:0,7 -t raw | csdr convert_i16_f \ | csdr fir_interpolate_cc 2 | csdr dsb_fc \ | csdr bandpass_fir_fft_cc 0.002 0.06 0.01 | csdr fastagc_ff \ | sudo sendiq -i /dev/stdin -s 96000 -f "$1" -t float
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2022-07-18 22:49:18 +03:00
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# REMOVE THIS
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else
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2022-07-20 19:03:17 +01:00
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echo "Not pressed"
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2022-07-18 22:49:18 +03:00
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# do arecord -l or arecord -L to find your audio card and change hw:0,7 to the corresponding value
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# maybe i just need to extract this command and put it in a subprocess... 🤔
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fi
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sleep .5
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done
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# this should work
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# screen will probably be operated using python, so all we need to do there is to killall ssb.sh, then run a new one with new freq async subproc
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# usage: bash ssb.sh "freq"
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