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From: | George Sexton |
Subject: | Re: [gpsd-users] RPi Temperature measurement - was Re: Garmin 18X-5Hz |
Date: | Thu, 18 Aug 2016 08:43:26 -0600 |
User-agent: | Mozilla/5.0 (Windows NT 6.1; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.2.0 |
I've done ambient temperature on a pi with a TMP 102: https://www.sparkfun.com/products/11931 and with a DS18B20 https://www.sparkfun.com/products/245 They'll give you a value for ambient temperature, but they're not going to be sensitive to workload on the CPU.On 8/17/2016 6:09 PM, Bryan
Christianson wrote:
I found this statement at http://www.elinux.org/RPI_vcgencmd_usage vcgencmd measure_temp Shows core temperature of BCM2835 SoC. address@hidden:~# vcgencmd measure_temp temp=42.8’C So I would assume the sensor is located in the BCM2835 chip/board (or equiv for a given model if RPi) BryanOn 18/08/2016, at 11:59 AM, Gary E. Miller <address@hidden> wrote: Yo Bryan! Do you know where the sensor is physically located? On Thu, 18 Aug 2016 11:36:28 +1200 Bryan Christianson <address@hidden> wrote:On 18/08/2016, at 11:27 AM, Gary E. Miller <address@hidden> wrote:It is room temp, no way to get CPU temp on a RasPi. I could on an Intel, but I do not see this on an Intel.I measure temperature on a pi with this script that produces mrtg data #!/bin/bash cpuTemp0=$(cat /sys/class/thermal/thermal_zone0/temp) cpuTemp1=$(($cpuTemp0/1000)) cpuTemp2=$(($cpuTemp0/100)) cpuTempM=$(($cpuTemp2 % $cpuTemp1)) CPU="$cpuTemp1"."$cpuTempM" GPU=$(/opt/vc/bin/vcgencmd measure_temp|awk -F '=' '{print $2}' | awk -F "\'" '{print $1}') echo $CPU echo $GPU echo $(/home/mrtg/bin/up -t) echo $(hostname) — Bryan Christianson address@hiddenRGDS GARY --------------------------------------------------------------------------- Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703 address@hidden Tel:+1 541 382 8588Bryan Christianson address@hidden |
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