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46 lines
1.4 KiB
Bash
Executable File
46 lines
1.4 KiB
Bash
Executable File
#!/bin/bash
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# Reads RSSI in dB from RX1, let's call it "r".
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# Linear fit offset "o" depends on frequency (2.4GHz or 5GHz and FMCOMMS2/3).
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# RSSI(dBm) = -r + o
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# 2.4GHz(ch 6) FMCOMMS2: o = 16.74
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# 2.4GHz(ch 6) FMCOMMS3: o = 17.44
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# 5GHz (ch 44) FMCOMMS2: o = 25.41
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# 5GHz (ch 44) FMCOMMS3: o = 24.58
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home_dir=$(pwd)
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#set -x
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if test -f "/sys/bus/iio/devices/iio:device0/in_voltage0_rssi"; then
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cd /sys/bus/iio/devices/iio:device0/
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else if test -f "/sys/bus/iio/devices/iio:device1/in_voltage0_rssi"; then
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cd /sys/bus/iio/devices/iio:device1/
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else if test -f "/sys/bus/iio/devices/iio:device2/in_voltage0_rssi"; then
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cd /sys/bus/iio/devices/iio:device2/
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else if test -f "/sys/bus/iio/devices/iio:device3/in_voltage0_rssi"; then
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cd /sys/bus/iio/devices/iio:device3/
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else if test -f "/sys/bus/iio/devices/iio:device4/in_voltage0_rssi"; then
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cd /sys/bus/iio/devices/iio:device4/
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else
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echo "Can not find in_voltage_rf_bandwidth!"
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echo "Check log to make sure ad9361 driver is loaded!"
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exit 1
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fi
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fi
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fi
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fi
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fi
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#set +x
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if [ $# -lt 1 ]; then
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cat in_voltage0_rssi
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else
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num_read=$1
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for ((i=0;i<$num_read;i++))
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do
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rssi_str=$(cat in_voltage0_rssi)
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echo "${rssi_str//dB}"
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done
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fi
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cd $home_dir
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