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Questions tagged [temperature]

This is for questions pertaining to the acceptable temperature ranges for the Pi and its respective parts.

2
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2answers
57 views

Why is Raspberry Pi 3B / 3B+'s CPU temperature precision 0.538°C?

While monitoring CPU temperature from /sys/class/thermal/thermal_zone0/temp, I noticed that the minimal step is exactly 0.538°C. This is the same on both Pi 3 B and Pi 3 B+, and I suppose that it ...
0
votes
1answer
43 views

Raspberry Pi 3B is heating up very quick and PUTTY cannot connect. Is it gone?

I cannot connect anymore to Raspi using PUTTY for a few hours. Short before I saw during boot time some mmc1 110 errors and a undervoltage sign on the screen. At the same time, the temperature of the ...
0
votes
2answers
44 views

Running temperature options

I have new RPi 3B+ intended to run 24/7. I am looking to ensure it doesn't overheat, so am wondering whether having wired ethernet would make it run cooler than using the WiFi? The Pi is situated ...
0
votes
0answers
21 views

Can Raspberry Pi survive outside temperatures? [duplicate]

I am making a raspberry pi outside security camera, but I am scared that my pi will not be able to survive my area harsh temperatures. I live in Illinois, so it gets pretty cold here. Does anyone know ...
0
votes
1answer
644 views

How to hookup pt100 with pi 3 without max31865 for temperature logging

Absolutely noon on pi here. I wanted to make a temperature logger with my raspberry Pi 3 and a "pt100 2 wire k type" thermocouple. I spent the evening googling about it and learned that one of the ...
0
votes
2answers
269 views

Small wireless temperature sensor recommendation [closed]

I am working on a human-care project using RPi. The second phase of project is in progress, and I need small wireless temperature sensor to be able to place on a human body. I've searched the internet,...
0
votes
1answer
56 views

Automatically bring back the Pi while it shutdown

I've experienced several P3B+ automtically shutdown cases, by skiping the analysis of the root cause, I wonder what is the solution to automatically bring back the Pi again while it shutdown, I mean ...
2
votes
2answers
304 views

Pi3B+ automatically shutdown while the temperature is less than 65C

I'm using Raspbian Stretch with desktop which published at 2018 JUNE. I'm doing some performance testing with Pi3B+ by running my application, the application is just keep send/write data via TCP/IP ...
1
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6answers
4k views

How to directly get CPU temp in Python?

Goal is to switch an exhaust fan at an outside data-logging station at a solar power station. The data-collection program is written in Python under Raspbian. For reading CPU temp at a command line, ...
2
votes
2answers
128 views

Raspberry pi for extreme outside using

I want to use raspberry pi for a vehicle park project. The Raspberry will stay in a metal box and it will never power off. The metal box is waterproof but its in middle of a empty area so it will get ...
0
votes
2answers
74 views

Raspberry PI 3 freeze for some hours and afterwards its working

I've a strange issue with my raspberry pi 3: The raspberry is working fine, after a while the raspberry stops working for about 5 hours. Afterwards the raspberry recovers itself (without rebooting!) ...
1
vote
1answer
309 views

How long do Rasperry Pis last when run continuously?

(Note, this is not a duplicate of question because my question is based on constant running at a temperature. Just because another question has one point in common does not make it a duplicate ...
1
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0answers
231 views

Is it possible to connect a Raspberry Pi Camera Module V2 without any concern to the CSI Camera Connector?

I have recently tried to connect the Raspberry Pi Camera Module V2 to the CSI Camera Connector on the Pi. At first, it worked properly and we could capture pictures and record videos. As part of a ...
1
vote
2answers
5k views

Raspberry Pi thermal throttle

I am running Raspian 9.4 Stretch and access it through SSH. How can I determine whether my RaspberryPi (3B+) is currently in a state of thermal throttle? I know I can get the RasPi's temperature using ...
4
votes
2answers
175 views

Where is the Raspberry Pi temperature measured?

Through the command vcgencmd measure_temp I can get the Raspberry Pi's temperature in Raspbian, therefore I know that it is possible to measure the temperature. Unfortunately I cannot really find a ...
1
vote
2answers
2k views

How Hot Is Too Hot?

I have a Raspberry Pi 3 Model B. I installed Ubuntu MATE but decided to go back to Raspbian as Ubuntu MATE was very slow. But during the short lived time I had with Ubuntu MATE, the processor's ...
0
votes
1answer
74 views

Any way to kill an application on high temperature?

I have a Raspberry Pi 3 and I'm thinking of running a process 7/24, but it sometimes uses CPU too much, and from my last 2 questions, I understood that Raspberry Pi 3 cannot power itself off on high ...
1
vote
1answer
156 views

What happens if throttling back doesn't help on high temperature? Does Raspberry Pi power off?

I recently asked this question asking if the temperature was handled by hardware or software and someone told me that it was handled by raspberry pi firmware (hardware). Appearently performance is ...
1
vote
1answer
126 views

Is high temperature handled by hardware or software?

I have installed LineageOS using PINN on my raspberry pi 3 and it runs fine, but I started worrying about high temperature. You see, when I use Raspbian or RecalboxOS, it warns me with a temperature ...
2
votes
1answer
9k views

What is the maximum temperature a Raspberry Pi 3 can be exposed to?

I need to expose a Raspberry Pi 3 to high temperatures, how much is okay? The place of production is very hot (I do not know how much still); before installing it I wanted to know how many degrees it ...
0
votes
0answers
861 views

Temperature PID controller with two outputs

I'm working on a temperature regulator based on Raspberry Pi 3. My project is not like a thermostat, it's a climatic regulation for an heating district. My goal is to control the temperature of the ...
0
votes
1answer
332 views

AM2302 wrong data and slow reading

I have followed the given instruction in this site. I got no error during installation. But when I try to execute sudo ./AdafruitDHT.py 2302 4 Failed to get reading. Try again! Sometimes I get ...
2
votes
1answer
210 views

TMP36GZ/DS1822 Temperature Sensors not outputting any values

I am trying to connect a temperature sensor to my Raspberry Pi using this tutorial for Windows IoT Core. I have connected all of the wires and MCP3002 correctly, but I cannot read in any values from ...
1
vote
0answers
191 views

Headless Temperature Controller W/ Web Interface? [closed]

I am trying to get started on my first project, and I am already overwhelmed. I will be using the Pi headless as a hot tub controller. I know basic Python, and was hoping to use that to control the ...
0
votes
2answers
1k views

Raspberry Pi 3 as a PC temp monitor [closed]

anyone knows if a raspberry pi could be used to monitor the temperatures of a PC? I think that this could be possible via wifi (for data transferring to the rpi) but I'm not sure. Any ideas? The idea ...
0
votes
1answer
36 views

Powerbank and Pi overheating?

I'm planning to build a "mobile pi", including a powerbank for power supply. These parts are put into a closed case with no air flow in it (wooden case with cloth around it). I don't think the Pi ...
1
vote
0answers
136 views

w1thermsensor is not detected

I am using DS18B20 Temperature sensor on Raspberry Pi. For that I installed w1thermsensor library on my Raspberry Pi. My code is given below. import time from w1thermsensor import W1ThermSensor ...
0
votes
0answers
161 views

Wifi disappeared on Raspberry pi 3 with overheat under no load

I have two raspberry Pi 3 with built in wifi card. I run a program that required internet on one of them the whole night last night. The next day, I say the red temperature gauge indicating an ...
0
votes
0answers
382 views

Pyserial slowing down after a while

I am trying to read temperature data from MSP430 via UART. I have written down a python program to read the Serial data using PySerial. This is the subroutine I am calling in infinite Loop. def ...
2
votes
1answer
3k views

Saving graphs using Matplotlib is very slow

I am trying to write a python Code snippet which creates 24 figures and 9 subplot and saves them in the directory. Its taking around 197 sec to create all the 24 figures and save them. This is ...
0
votes
0answers
130 views

DHT22 temp sensor. Randomly showing -11.1

I have two DHT22 sensors, connected to GPIO 4 AND GPIO 22 and 3.3V. It randomly shows -11.1 or 11.1 as output occasionally. See the sample log of polling it every few seconds using the "AdafruitDHT.py"...
1
vote
2answers
274 views

Raspberry pi 3 hot resting temperature

My raspberry pi 3 is getting really hot as soon as it is plugged in. Its temperature is resting at about 65-70 C when it isn't doing anything and I've read that it shouldn't exceed 85 C. The room it ...
0
votes
0answers
130 views

Where do I insert temperature correction code for my eclipse-based sense HAT project

I am making a sense hat data logger as specified by the Raspberry Pi website, but it does not say how to get accurate temperature readings. I found a solution in the second code block on this blog, ...
1
vote
1answer
947 views

Raspberry Pi MAX31856 Thermocouple Temperature Reading Error

I'm working with t-type thermocouple and needs to read the temperature data using python on Raspberry Pi 3. I used Adafruit MAX31856 to connect the thermocouple to the Pi and and tried to read it ...
0
votes
0answers
1k views

cat w1_slave not found when trying to connect the temperature sensor

So I'm trying to connect my DS18B20 sensor with my raspberry pi. After writing the commands: sudo nano /boot/config.txt `dtoverlay = w1-gpio` and rebooting, I'm writing these set of commands: pi@...
1
vote
1answer
703 views

Code using up 75-85% of my Pi3 CPU

Sorry if this has an obvious answer to some of you out there, I am however pretty new to python and still in the learning phase. My code, posted below, runs laggy (slower than the two sleep commands),...
1
vote
0answers
200 views

multiple DS18S20 temp sensors without using 1wire

Can anyone tell me if it is possible to connect the multiple DS18S20 sensors to different GPIO ports and pull the temperature on different ports, as opposed to a single wire option where I can only ...
0
votes
4answers
2k views

how to cool down raspberry pi

I've got a Raspberry Pi 3 running 24h/24h at 100%: it is costantly at 70°C.. I'd like to know if there are simple and cheap solutions to cool it down.
6
votes
2answers
150 views

Gather data in rural areas

I am building a prototype with temperature and humidity sensors for rural areas and I am trying to determine which is the best way to gather data, since Internet may not be available (no WiFi). I am ...
1
vote
0answers
2k views

MAX485 chips burning out easily [closed]

I've ordered some MAX485 chips to establish a connection between a RPi and multiple Arduino Mini's. This is working great, but the MAX485 chip on the RPi side gets quite hot. I've burned around 4 ...
6
votes
2answers
1k views

How to approximate room temperature in a better way

I've just bought an Enviro pHAT. The temperature sensor on my pHAT reads around 31 degrees Celsius for my room This sensor is close to the Pi, so it also gets a heatwave from the CPU Is there a ...
7
votes
2answers
2k views

Compute Module 3 current/thermal profile

The Pi Foundation just announced the second iteration of the compute module, usefully called the Compute Module 3. In their press release they've dropped some fairly hand-wavey statements about the ...
0
votes
1answer
842 views

SOC temperature max for Pi 2 (Model B) and Pi 3 [duplicate]

I'm putting a Pi in my attic which has, on hot days, an ambient temperature of 45-55C. A) Will the Pi operate correctly in these temperatures? B) Will I need a heatsink? I've read the Pi 3 will ...
1
vote
1answer
187 views

Sunfounder DS18B20 disable light

I've got a problem: I have a Sunfounder DS18B20 Module for measuring the Temperature, but this Module has a little Led which i wont to turn off. Is this possible and how? Thanks
2
votes
2answers
792 views

How to read RHT03 sensor

I have this sensor: http://cdn.sparkfun.com/datasheets/Sensors/Weather/RHT03.pdf On page 3 there is an image showing how to communicate. I also attach an image of this here: In my understanding, ...
7
votes
1answer
654 views

Does a cool Raspberry Pi 3 run more efficiently?

I think this is a slightly different question related to hardware temperatures. I am curious about the drop in temperature after adding a fan and the impact of temperature on processor efficiency. I ...
1
vote
1answer
1k views

How cold is too cold?

I have an Rpi2 out in my garage, today it is about 35f degrees out, and the CPU temp is 28.2c. Is this too cold, how cold is too cold? Is there a min I should be concerned about, and what will ...
2
votes
0answers
862 views

Safest highest operating temperature of a Raspberry Pi 3 Model B

What is the safest highest operating temperature of a Raspberry Pi 3 Model B? I was able to get my temperature up to 77'C by running: fulload() { dd if=/dev/zero of=/dev/null | dd if=/dev/zero of=/...
3
votes
2answers
25k views

Is this idle temperature normal for the RPi 3?

I've just setup a raspberry pi 3 and found out that, on idle, the temperature is about 48 C (measured with vcgencmd measure_temp). On a raspberry pi B+ with the same enclosure and in the same ...
8
votes
2answers
14k views

How to remove thermometer in Raspbian 8 jessie PIXEL

I am using a raspberry pi 3 with raspbian 8 jessie (pixel). I have chromium running in kiosk mode but I noticed that the thermometer appears on the top right of the screen to indicate that the PI is ...