63 lines
1.3 KiB
Bash
Executable File
63 lines
1.3 KiB
Bash
Executable File
#!/bin/sh
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cd /salad
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DATETIME=`date "+%Y-%m-%d-%H-%M"`
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COUNT=0
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while (!(echo "$TEMP" | grep -E -q "^-?[0-9]+([.][0-9]+)?$"))
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do
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COUNT=`expr $COUNT + 1`
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TEMP=`dht22 -p 38 -s temp`
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sleep 2
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if [ "$COUNT" -eq 10 ]
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then
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break
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fi
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done
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COUNT=0
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while (!(echo "$HUM" | grep -E -q "^-?[0-9]+([.][0-9]+)?$"))
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do
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COUNT=`expr $COUNT + 1`
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HUM=`dht22 -p 38 -s hum`
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sleep 2
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if [ "$COUNT" -eq 10 ]
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then
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break
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fi
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done
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echo "99" > /dev/ttyUSB0
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WATER=`dd if=/dev/ttyUSB0 count=1`
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WATERTEMP="$(echo "${WATER}" | tr -d 't')"
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if [ "$COUNT" -eq 10 ]
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then
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echo "Couldn't read temp/hum"
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else
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echo "$DATETIME HUM = $HUM TEMP = $TEMP WATER = $WATERTEMP" >> SALAD_log.txt
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fi
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# air heater:
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TEMPINT=${TEMP%.*}
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if [ "$TEMPINT" -gt 21 ]
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then
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echo "224" > /dev/ttyUSB0
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echo "ST $DATETIME 224 - AIR HEAT OFF" >> SALAD_log.txt
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fi
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if [ "$TEMPINT" -lt 19 ]
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then
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echo "214" > /dev/ttyUSB0
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echo "ST $DATETIME 214 - AIR HEAT ON" >> SALAD_log.txt
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fi
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# water heater:
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if [ "$WATERTEMP" -gt 21 ]
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then
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echo "227" > /dev/ttyUSB0
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echo "ST $DATETIME 227 - WATER HEAT OFF" >> SALAD_log.txt
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fi
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if [ "$WATERTEMP" -lt 19 ]
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then
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echo "217" > /dev/ttyUSB0
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echo "ST $DATETIME 217 - WATER HEAT ON" >> SALAD_log.txt
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fi
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cp /salad/SALAD_log.txt /var/www/html/sys/log.txt
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