publishTemperature.sh


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#!/bin/bash
# Extract raspi GPU/CPU temperatures and publish them on MQTT
# SJP 9 Jan 2018
# Designed to be called from a timer service.
#
cpuTemp=$(echo "scale=1; $(cat /sys/class/thermal/thermal_zone0/temp)/1000" | bc)

mosquitto_pub -h stan -m "CPU temp is ${cpuTemp}" -t stan/test/cpu