Hello Angelo,
I experience some reboot and I lost some sensors reading from time to time with my actual setup. After the system reboot all working fine. I would like to see what is the temperature of the Raspberry Pi CPU. Maybe is the culprit. Actually the temperature in the greenhouse is over 30 C and the Raspberry Pi is in enclosure box. I was unable to install a CPU fan because of the Automation and Irrigation Hat. Maybe my Raspberry Pi 3 over heat. With my Raspberry PI 4 (raspbian buster full install) I usually use the command /opt/vc/bin/vcgencmd measure_temp witch it give me something like temp=34.0 'c.
But with your installation package the directory /vc in /opt directory did not exist and my command failed. What command can I use for see the temperature of the CPU with your configuration.
Like always thank for your support.
Pierre
Hello Angelo, Yes I purchased online on Amazon. The brand name is Arlington. This company sell electrical box and fitting. Some are water proof. Here is a print screen of my order on Amazon for this box. I also use water proof model of this box ouside of my house for protecting the lighting arrestor and ground system for the cables comming from my antenna tower to my radio equipements. Pierre
You setup looks professional. Never seen that type of box here in Italy, did you purchase it online?
Anyway the password for the SSH connection is "hydrosys4password" username is "pi"
Is there a possibility of setting up something on the Home page of Hydrosys4 to display CPU temp? Or even set up an alarm in case it gets too hot? Just curious as i would like to log it and see if i need to create ventilation on my box. Also adding some pics for fun
Hello Angelo,
I tried your command on my raspberry pi 4 and it's work well. In the mean time I managed to install not one but two fans in my box. The fans are control by a automation, temperature probe and a relay. I also made on the other side of the box four ventilation holes Now I stay with a little but very embarassing problem with my hydrosys box (raspberry Pi 3)... I'am unable login to hydrosys via SSH. I tried de default password: raspberry and the admin password for hydrosys login but I received a Permission denied all the time.... In fact I don't know what is the good password to use for user pi..... And I have no idea how I manage to login in a few days ago. I'am not very proud of me on this one.
TIA
Pierre
Hello,
To check the temperature of the CPU, you can use the following command line:
vcgencmd measure_temp
I just measured mine and it was temp=67.1'C. Also my raspberry pi3 is in a greenhouse, anyway I made several holes in the box to keep convection going. So far I did not have problems, I understood that the raspberry uses some throttling to reduce the clock of the CPU when the temperature is over some threshold.
You can also use the command:
htop
to check the usage of CPU, normally should stay below 10%.
Also found this Link which shows the commands about the CPU clock speed (min and Max range):
https://low-orbit.net/raspberry-pi-how-to-check-cpu-speed
In case you see the temperature going to high, you may think to install a small fan in the box, ensuring there are proper holes to allow the correct Airflow.