[arm-allstar] pcsensor

Sun Jan 23 00:27:22 EST 2022

Yeah it’s running raspbian. Don’t know why I didn’t think of that. I’ll give that a try sometime tomorrow. Thank you sir!!!

Dusty Smith
—W4MSI—

(sent from my smartphone)

On Jan 22, 2022, at 10:12 PM, David McGough <kb4fxc at inttek.net> wrote:

Dusty,

Looking at the messages, the utility "bc" is missing.

I'm guessing the RPi0W is running some Debian derivative OS?  If so, try:

apt-get install bc

73, David KB4FXC

On Sun, 23 Jan 2022, Dusty Smith wrote:

Hi again. I have successfully used your scripts on 2 different RPi3 units. But I was trying tonight to use it on a RPi zero wireless model and am getting errors. Can you offer any help on this.

Here is the modified script I'm using that works flawlessly on rpi3 models.

---------------
#!/bin/bash
#
#       Simple temperature query script for PCSENSOR dual-sensor
#       device, version: Temper2_V3.7.  KB4FXC 2021-11-28
#
#    Available on Amazon:  https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.amazon.com%2Fdp%2FB073PQJBMQ&data=04%7C01%7C%7Cc20ee816cb6042cfda1708d9de268918%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637785079371198723%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=52aK55R2hYMRROotKKR%2FvP0gMpUdNkJPEUgYfpJ0Vzk%3D&reserved=0
#

[ ! -d /sys/class/hidraw ] && echo "No HID directory found!" && exit 1

res=0
for i in $(find /sys/class/hidraw/ -type l | sort -r) ; do
   grep -F -m 1 1A86:E025 <<< $(ls -srlt $i) &>/dev/null
   [ $? -eq 0 ] && res=1 && break
done

[ $res -eq 0 ] && echo "No HID devices found! Try resetting usb device" && exit 1

hiddev="/dev/$(basename $i)"

[ "$hiddev" = "" ] && echo "No HID directory found!" && exit 2
[ ! -c "$hiddev" ] && echo "No HID device file found!" && exit 3

DATE=$(date "+%Y-%m-%d-%H:%m:%S")

exec 5<> $hiddev
[ $? -ne 0 ] && echo "Can not connect to HID device!" && exit 4

# Query the device version
echo -e '\x00\x01\x86\xff\x01\x00\x00\x00\x00\c' >&5

# get ASCII response
OUT="$(timeout 5 dd count=2 bs=8 <&5 2>/dev/null | xargs)"
#echo "version=$OUT"

[ "$OUT" = "" ] && echo "ERROR: Can not read Version, try resetting usb device: hiddev=$hiddev" && exit 5

REPLY="$OUT"

# Query the temperature
echo -e '\x00\x01\x80\x33\x01\x00\x00\x00\x00\c' >&5

# get binary response
OUT="$(timeout 5 dd count=2 bs=8 <&5 2>/dev/null | xxd -p )"
#echo "out=$OUT"

[ "$OUT" = "" ] && echo "ERROR: Can not read Temperature, try resetting usb device: hiddev=$hiddev" && exit 6

# characters 5-8 is the temp1 in hex x1000
HEX4=${OUT:4:4}
DVAL=$((16#$HEX4))
CTEMP=$(bc <<< "scale=2; $DVAL/100")
FTEMP=$(bc <<< "scale=2; 9 * $DVAL / 500 + 32")
#echo "Temp1=$CTEMP,$FTEMP"
REPLY="$REPLY|$CTEMP|$FTEMP"

# Starting at position 16, characters 5-8 is the temp2 in hex x1000
HEX4=${OUT:20:4}
DVAL=$((16#$HEX4))
CTEMP=$(bc <<< "scale=2; $DVAL/100")
FTEMP2=$(bc <<< "scale=2; 9 * $DVAL / 500 + 32")
#echo "Temp2=$CTEMP,$FTEMP"
REPLY="$REPLY|$CTEMP|$FTEMP"

date2=$(date +%D---%T)

echo "|   ~   DATE   ~    |USB  F||Probe F|"
echo "|$date2|$FTEMP-||$FTEMP2  |"
exit 0

-------------------------

The error I get is as follows.

root at raspberrypi:/HouseTemp# checktemp
/usr/local/sbin/checktemp: line 52: bc: command not found
/usr/local/sbin/checktemp: line 53: bc: command not found
/usr/local/sbin/checktemp: line 60: bc: command not found
/usr/local/sbin/checktemp: line 61: bc: command not found
|   ~   DATE   ~    |USB  F||Probe F|
|01/22/22---21:43:12|-||  |

Dusty Smith
â?"W4MSIâ?"

-----Original Message-----
From: David McGough <kb4fxc at inttek.net>
Sent: Saturday, November 20, 2021 8:03 PM
To: Dusty Smith <w4msi at outlook.com>
Cc: Dusty Smith via ARM-allstar <arm-allstar at hamvoip.org>
Subject: Re: [arm-allstar] pcsensor

Okay, I'll try to obtain one to test.

On Sun, 21 Nov 2021, Dusty Smith wrote:

Ok just making sure you did get the reply. I purchased it from Amazon. HereÃ¢â,¬â"¢s a link.

PCsensor Double Sensor Computer USB Thermometer Data Logger Free PC
Software for Logging Temperature with Email Alarm -40~+120 Celsius
https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.a%2F&data=04%7C01%7C%7Cc20ee816cb6042cfda1708d9de268918%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637785079371198723%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=Q1KQ0rEyYfZ8Q5p6hWl48AzoBoRSY%2BbdMSL6m9jbnw8%3D&reserved=0
mazon.com%2Fdp%2FB073PQJBMQ%2Fref%3Dcm_sw_r_cp_api_glt_fabc_PNC0A2035C
R21T1QR8NK%3F_encoding%3DUTF8%26psc%3D1&data=04%7C01%7C%7Cf548aa3d
aa864d94424108d9ac92fbf0%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C
637730569565918148%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjo
iV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=W4cyxQUfUZYsJ
gxGMDIkplmh4HZHxX%2BWhN6ORyGxPjA%3D&reserved=0

Let me know what you find and if thereÃ¢â,¬â"¢s any way I can assist or whatever. Appreciate your responses and any help you can offer.

Dusty Smith
Ã¢â,¬â?W4MSIÃ¢â,¬â?

(sent from my smartphone)

On Nov 20, 2021, at 7:50 PM, David McGough <kb4fxc at inttek.net> wrote:

Ã¯Â»Â¿
Hi Dusty,

Yes, I got the lsusb output.   I'm not familiar with the model temp sensor
you've got, listed as:

Bus 001 Device 005: ID 1a86:e025 QinHeng Electronics

I google'd this device ID and others indicated that a very simple
software update (probably just changing the device PID/VID in the
program) was all that was needed to get it to work.  However, since I don't have one of
these sensors, I can't personally test.   Where did you get this sensor??
If I can get one, I'll try to update the software.

73, David KB4FXC

On Sun, 21 Nov 2021, Dusty Smith wrote:

Did you get my reply with the lsusb output?

Dusty Smith
ÃfÂ¢?"W4MSIÃfÂ¢?"

(sent from my smartphone)

On Nov 19, 2021, at 7:36 PM, David McGough <kb4fxc at inttek.net> wrote:

ÃfÂ¯Ã,Â»Ã,Â¿
Hi Dusty,

Please post the output from lsusb.  Typically, that family of sensors
is very easy to use. I expect a minor software change will get the
model you've got to work.

73, David KB4FXC

On Sat, 20 Nov 2021, "Dusty Smith via ARM-allstar" wrote:

Hello, I'm trying to setup a usb temperature sensor on my pi/hamvoip
node/repeater to monitor the temp of the station and such. I just
purchased a TEMPer2 usb sensor. Plugged it into the Pi and ran
pcsensor and it gives the error of "Couldn't find the USB device,
Exiting" tried updating hamvoip and rebooting multiple times to no
avail. If I run lsusb I can see the device listed. So the Pi is seeing
it. But pcsensor doesn't seem to know it's there. Can you offer any guidance?  Thank you!

So after doing some more digging it appears that maybe the sensor I
purchased just simply isn't compatible (TEMPer2). If that's the case,
do you know which sensors are compatible. I'd like to get this working
but not sure what needs to be purchased. Here's a site with different models.

https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.pc%2F&data=04%7C01%7C%7Cc20ee816cb6042cfda1708d9de268918%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637785079371198723%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=q6slIs3gMlY90zXAJ%2Bb%2BpV4H%2FLaccjodDuJpF9PQ0gY%3D&reserved=0
sensor.com%2Fusb-temperature-humidity.html&data=04%7C01%7C%7Cf548a
a3daa864d94424108d9ac92fbf0%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0
%7C637730569565918148%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQ
IjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=Hi4wvQW9D4
3cAioXH%2Fpqd34idipj5AyVEumrOP210mo%3D&reserved=0

Any help would be greatly appreciated. Thanks!

Dusty Smith
-W4MSI-

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Visit the BBB and RPi2/3/4 web page -
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p.org%2F&data=04%7C01%7C%7Cf548aa3daa864d94424108d9ac92fbf0%7C84df
9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637730569565918148%7CUnknown%7C
TWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVC
I6Mn0%3D%7C3000&sdata=r5ehJu5SWrED0ME9eYk9jd8LoIPw%2BNr3fHpL%2F6Pu
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