What is Send Sensor?
Send Sensor is the BoincTasks Js / BoincTasks companion to remotely read the CPU and/or GPU temperature and GPU runtime % on Linux based computers.
On Windows machines use TThrottle.
BoincTasks Js, more info in Quick Start.
BoincTasks, in BoincTasks settings, select connect to TThrottle.
Programs needed
Send Sensors uses sensors for the CPU temperature and if you have a GPU, nvidia-smi to read the GPU temperatures/runtime % .
Install lm-sensors*
Note do not install when using Raspberry Pi*.
It has its own way of reading the temperature.
sudo apt update
sudo apt install lm-sensors
sudo sensors-detect
Test the command Send Sensor uses:
sensors coretemp-isa-0000 -j
Install nvidia-smi *
The Nvidia GPU driver package generally includes nvidia-smi.
Search for Linux Nvidia Driver (Proprietary).
Or just use test below, to check if it’s already installed.
Test the command Send Sensor uses:
nvidia-smi –query-gpu=name,utilization.gpu,temperature.gpu –format=csv
* Commands are valid for Ubtuntu and you might need to do things differently on your computer.
Install Send Sensor
The easy way on a Raspberry Pi: Open the web browser and go to the download page, click with the right mouse key and select open link in new tab.
Wait for the deb file to download.
After downloading it shows Keep / Discard, select Keep.
Now double click on the downloaded file and select install.
Open the terminal and type sendsensor.
Now you should see SendSensor icon in the right upper corner.
Right click Open
Use the above method first, but if this fails:
From the terminal:
Go to the download folder: cd Downloads on the Pi.
sudo apt-get update
sudo dpkg –remove sendsensor
sudo dpkg -i ./sendsensor_1.2.1_amd64.deb (Intel AMD)
or
sudo apt-get update
sudo dpkg –remove sendsensor
sudo dpkg -i ./sendsensor_1.1.0_armhf.deb (Arm)
Change the version number and type to match the downloaded deb.
To start type sendsensor (from the terminal)With Raspberry Pi bullseye start sendsensor –disable-seccomp-filter-sandbox
Use Send Sensor
On the Send Sensor icon use the right mouse key and select open.
Menu Extra -> Settings
Allowed IP
Add individual IP addresses (one on each line) or * (A single *, nothing else)
E.g.:
192.168.1.2
192.168.1.4
Or:
*
Local IP
The field Local IP should show the local IP address, but NOT localhost or 127.1.1.1.
There is no need to change the address, unless there is more than one IP address.
Port
In BoincTasks the port must be the BOINC IP + 1 e.g. 31417.
In BoincTasks Js it can be any non conflicting port.
In BoincTasks Js the port must be added to the computer port (computers->edit). e.g. 31416;31417
What you should see
Cpu0: 78℃ Cpu1: 80℃ Cpu2: 82℃ Cpu3: 83℃
Gpu0: 77℃ 100% Gpu1: 57℃ -1%
Polling idle as soon as this window closes
Listening Ip: 192.168.10.4 port: 31417
No connections.
sensors: OK
nvidia-smi: OK
First of all you should see OK for the sensors you have.
If it’s OK, the CPU and/or the GPU temperature/runtime should be shown.
The GPU % isn’t always supported by the driver.
Hide
Make sure to hide the program as soon as you are ready, to avoid unnecessary sensor polling.
The sensor polling stops as soon as Send Sensors is no longer visible and BoincTasks or BoincTasks Js doesn’t need the data.
Troubleshooting
All systems except Raspberry Pi*:
In the terminal type: sensors -u
This should give you a temperature Json string.
sensors -u coretemp-isa-0000 -j
This should give you a temperature.
Troubleshooting Raspberry Pi*
Make sure you run the Desktop Version set at installation.
Tested on (cat /etc/os-release)
PRETTY_NAME=”Raspbian GNU/Linux 10 (buster)”
NAME=”Raspbian GNU/Linux”
PRETTY_NAME=”Raspbian GNU/Linux 10 (buster)”
NAME=”Raspbian GNU/Linux”
VERSION_ID=”10″
VERSION=”10 (buster)”
VERSION_CODENAME=buster
ID=raspbian
ID_LIKE=debian
Or
PRETTY_NAME=”Raspbian GNU/Linux 11 (bullseye)”
NAME=”Raspbian GNU/Linux”
VERSION_ID=”11″
VERSION=”11 (bullseye)”
VERSION_CODENAME=bullseye
ID=raspbian
ID_LIKE=debian
With bullseye start sendsensor –disable-seccomp-filter-sandbox
cat /sys/class/thermal/thermal_zone0/temp
Shows temperature *1000
Dependency:
apt show sendsensor
Checking Raspbian release:
cat /etc/os-release
Removing everything:
sudo apt-get remove lm-sensors
sudo apt-get remove sendsensor
sudo apt-get autoremove