ble_spo2_monitor.sh

#!/bin/bash

SPO2_LOW=89
SPO2_HIGH=99
HCI=hci0
HCI_ID=$(rfkill list | grep $HCI | cut -d: -f1)

# Enable HCI usage
rfkill unblock $HCI_ID

# Check if virtual environment is available to use
if [ -x ble_spo2/bin/activate ]; then
    source ble_spo2/bin/activate
fi

# Check for MAC
if [ -z "$O2_BLE_MAC" ]; then
    if [ -r ./my_o2.sh ]; then
        source ./my_o2.sh
    fi
    if [ -z "$O2_BLE_MAC" ]; then
        echo "Do export your SpO2 sensor MAC e.g. using"
        echo "export O2_BLE_MAC=DA:1C:F9:12:34:56"
        exit
    fi
fi

# Check for language to use
if [ -z "$LANG" ]; then
    LANG=$(locale | grep LANG=)
    LANG=${LANG##*=}
fi
export SPEAK="espeak -v en"
export LANG_START=Start_monitoring
export LANG_STOP=Stop_monitoring
export LANG_HIGH=high_oxygen
export LANG_LOW=low_oxygen
export LANG_INACT=sensor_idle
export LANG_OFF=sensor_off

# Texts for different languages
case $LANG in
en*) ;;

de*)
    SPEAK="espeak -v de"
    export LANG_START=Überwachung_starten
    export LANG_STOP=Überwachung_stop
    export LANG_HIGH=viel_Sauerschtoff
    export LANG_LOW=wenig_Sauerschtoff
    export LANG_INACT=Sensor_nicht_aktiv
    export LANG_OFF=Sensor_aus
    ;;
es*)
    SPEAK="espeak -v es"
    export LANG_START=comenzar_a_monitorear
    export LANG_STOP=parada_de_monitorear
    export LANG_HIGH=mucho_oxigeno
    export LANG_LOW=poco_oxigeno
    export LANG_INACT=sensor_inactivo
    export LANG_OFF=sensor_apagado
    ;;
*)
    echo "LANGUAGE $LA not supported (using english)"
    ;;
esac

# Let monitoring run in infinite loop
# to restart imediately if python throws an exception.
$SPEAK $LANG_START
CSV=./spo2_$(date +%d.%m.%y_%H:%M:%S).csv
./ble_spo2.py -L $CSV \
    --o2_max $SPO2_HIGH --o2_high_action "$SPEAK $LANG_HIGH" \
    --o2_min $SPO2_LOW --o2_low_action "$SPEAK $LANG_LOW" \
    --sensor_idle_action "$SPEAK $LANG_INACT" \
    --sensor_off_action "$SPEAK $LANG_OFF" \
    $O2_BLE_MAC
echo "Exit $?"
$SPEAK $LANG_STOP

./plot_csv.sh $CSV

#EOF