Temperature is the amount of heat energy in the air. This is for questions pertaining to the best temperature ranges for the Pi and its respective parts.

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25 views

Pi dead: U3 IC gets extremely hot

I got two Pi's, and both of them have the same problem. To the first one, I connected a 3.3V power supply to pin 1, following which the board didn't boot and no LEDs lit. The board seems to be dead, ...
0
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1answer
55 views

How do I monitor the temperature ever 3 seconds without entering new commands?

I just bought a heat sink kit for my pi and I'm using Raspbian and would like to monitor the temperature continuously every 3 seconds via SSH while I perform tasks on the pi so that I don't have to ...
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1answer
58 views

One wire temperature sensor DS18B20 sudden precission drop

I wired 10 DS18B20 to the raspberry pi, in the normal powered mode. I am using the Raspbian's built in w1-gpio and w1-therm. I am able to read all the 10 sensor values. Problem is, after (seemingly ...
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2answers
134 views

What is a failproof method for testing a GPIO pin?

So, basically, I've been trying to get my raspberry pi to get the room temperature from a DS18B20 1 wire temperature sensor. I've read only GPIO 4 is capable of this, and I think for some reason GPIO ...
1
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0answers
61 views

Did my PI lockup or was it halted?

I couldn't connect to my pi this morning until I turned it off and on again. I did this at around noon, didn't record the exact time, thereafter it connected via ssh. My sys.log state: Sep 18 ...
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0answers
96 views

Sensor DS18B20 - i2C - weird response

I'm using the raspberry pi (model B) with the DS18B20 to read temperature. I connected 9 sensors through the 1wire (port 4), however I'm having a few sensors with a weird problem. The sensors ...
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1answer
62 views

My Pi can boot but extremely hot. HELP!

After trying the GPIO, my PI cannot not boot. Few weeks later, the polyfuse seems recovered and it can be boot. But the CPU is very hot and reach 80C. The USB port is not work and the PI is ...
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2answers
98 views

using the temperature command in a bash script to affect gpio

I have a led connected to a gpio pin using wiringpi, and I am trying to have it affected by the temperature reported by /opt/vc/bin/vcgencmd measure_temp I have this command in an executable file ...
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2answers
70 views

'Safe' temperatures for use

So I need to measure the temperature in my conservatory, and with all the doors shut on a summer's day it gets pretty toasty (uncomfortable for more than a few seconds). My question is what sort of ...
0
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1answer
88 views

One Wire Temperature auto setup while booting

I have temperature sensor (DS18B20), also known as a 'one-wire sensor'. I've connected it to pin 4. I am using this code that someone wrote (source). #!/usr/bin/env python import time ...
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2answers
77 views

A Shortcut For Checking Temps?

So I live in California and it is really hot so I worry about my RPI temperatures. I want a really easy way to check right now I have used the GNU Nano program to make a bash alias so when I type temp ...
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2answers
275 views

IndexError DS18B20 Temperature sensor

I have this temperature sensor (DS18B20). I've followed the tutorial on Adafruit (here). First I had to setup some modules by doing: sudo modprobe w1-gpio sudo modprobe w1-therm Then I check the ...
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1answer
62 views

Whats the optimal temperature for the Pi's processor to run at?

At what temperature will the Pi's processor work fastest?
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1answer
79 views

Housing and temperature

I'm creating a cute wooden box for my pi as XBMC + webServer. As I want the system to stop using energy when switched off I included the 5v 1a transformer in the case, and put the switch between the ...
1
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0answers
65 views

Protecting the RPi against Moisture in a Refrigerator [duplicate]

Refrigerator This is a follow up to my previous question here. My chest freezer came in yesterday, and I brewed two batches of homebrew and placed them in last night. This morning, I couldn't wait ...
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1answer
121 views

Permission Denied for CPU Temperature Query

When i login as root user into my Rapsberry Pi, then i query for temperature using this command; pi@raspberrypi ~ $ /sys/class/thermal/thermal_zone0/mode -bash: ...
3
votes
3answers
275 views

Using the Raspberry Pi Cam at 110 degrees Celsius

A CCD camera is required to be placed in a hot environment of up to 120 deg Celsius. I am thinking of using the Raspberry Pi Camera Module which I already have. However I am unable to find any specs ...
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2answers
392 views

How to get the temperatur of 2 sensors in java, using an extension board?

There are several questions about getting the temperature but non of them covers a solution for java. I want to build al little weather station in java to gett temp values, unfortunatly i am not that ...
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2answers
142 views

Will the RaspberryPi Operate Correctly in a refridgerated, 60*F (15*C) Temperatures?

I use the RPi to measure the temperature of homebrew beer. I currently just brew in my closet, but I would like to buy a chest-freezer/refridgerator which would combat the heat during the summer ...
0
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2answers
797 views

vcgencmd measure_temp doesn't always work

I'm trying to measure my Raspberry Pi's temperature using vcgencmd measure_temp but it only works whenever it feels like it: pi@raspberrypi ~ $ sudo /opt/vc/bin/vcgencmd measure_temp vc_gencmd_send ...
0
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1answer
184 views

Raspberry Pi Temperature Logging & HTTP Requests

I've built a basic web platform that will log data through HTTP GET requests anytime the following URL is hit: http://desolate-spire-6651.herokuapp.com/temperature_reading/save?temperature=70.5 My ...
2
votes
1answer
2k views

USB stick gets very hot

I have a 32GB, USB 2.0 ICIDU USB stick that I want to connect to my Raspi for storing ownCloud files. The stick is FAT32 formatted, from factory. My Raspi is running ownCloud 6 using this image: ...
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4answers
511 views

Best way to store temperature data offline

I am currently building offline logger - every 10 seconds the application will save GPS location + temperature and humidity. And now comes the question: what is the best way to store these data on ...
0
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1answer
344 views

Change Temperature Monitor to display in Fahrenheit [closed]

Can I change the temperature monitor on LXPanel on Raspbian in the GUI to display in Fahrenheit? If so how do I change it?
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2answers
1k views

How to connect 20 DS18B20 temperature sensors to RPi?

RPi is working fine with 10 1-wire temperature sensors, but I need to connect 20.
3
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2answers
149 views

Enclosing the Raspberry Pi in a Plushie

As I've seen previous projects with the Raspberry Pi being enclosed in stuffed animals and plushies. I've wanted to attempt a project in a similar environment. Will there be a problem with overheating ...
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1answer
104 views

Environmental Tolerance

I am planning a use for the RPi where it will be permanently connected to a car via the CAN-BUS. While other questions have discussed the stability of power, I am more concerned about the ...
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2answers
524 views

How to display a graph from temperature, humidity readings?

I managed to get my RaspberryPi & DHT 2302 sensor working I have my readings added to a file every 10 min I want to display them now as a graph on my website What will be an option? ...
-3
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1answer
14k views

Raspberry Pi onboard temp sensors in Raspbian(Wheezy)? [duplicate]

I have been looking on the internet and found nothing for getting readings of the temperatures of the CPU on the Raspberry Pi. Im using Raspbian (Wheezy). Any help would be great for everyone!
2
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1answer
426 views

Sensor via USB to PI

I have a temperature/humidity sensor that connects via USB to a PC. There is a program that reads it and displays the data. Is there an easy way to get the Pi to read this data and get it into an Open ...
4
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5answers
12k views

Multiple temperature sensors with a Raspberry Pi

I have seen plenty of examples for using one temperature sensor with the Raspberry Pi, however, how can I multiplex 5-6 temperature sensors to a Raspberry Pi? I want to read the temperature from ...
6
votes
3answers
8k views

How do I display the temperature from the internal sensor on a HTML page?

I am just getting into this and whilst I can display the temp via SSH, I am struggling with displaying it on the little webpage I setup on my Pi running Apache2. I followed this example ...
0
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2answers
931 views

Reading common food thermometer probes

I have 2 temp probes from a Maverick ET-7 (common on Amazon.com). I would like to setup my Raspberry Pi to read temps from these. I purchased a breadboard and Pi cobbler + cable from Adafruit. Is this ...
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2answers
97 views

Rasperry Pi constantly faulting

I have 3 Raspberries set up in cases with holes in them. Each Raspberry has a microcontroller and a wireless adapter attached via USB. Two raspberries have been working fine for 5 months now. ...
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1answer
111 views

What is the “AP” on the Raspberry Pi, from the FAQ?

In the temperature FAQ, it "the LAN9512 is specified by the manufacturers being qualified from 0°C to 70°C, while the AP is qualified from -40°C to 85°C." Does anyone know what the "AP" is? Is it the ...
0
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1answer
1k views

PiFace module and sensors

I'm looking all over the forums in order to be sure that I'm able to have two sensors (temperature in my case) and a proximity sensor. Can anyone guide me to a compatibile sensor (I'd prefer a ...
0
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1answer
159 views

Temperature sensor appears to be reading too high

I've recently bought an outdoor temperature sensor, specifically this one off of eBay. I then went on to use this tutorial to hook it up using a breadboard and such. The only difference being I used ...
2
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5answers
193 views

What should I take into account when trying to decide between an Arduino Uno or a Raspberry Pi for my application?

I am designing a device that will have an accelerometer and temperature sensors. This device is intended to record patterns in activity of individuals throughout the day. The data collected will be ...
4
votes
2answers
773 views

Get PI's temperature using C

I know you can get the temperature using the tool vcgencmd but I was wondering if there is any API I can use in C to get the temperature programatically without reading the stdout of vcgencmd ?
6
votes
1answer
407 views

Is it a bad idea to do distributed computing?

Like many users, my RPi will be used as a low-consumption micro server and will be powered continuously. All the computing time is not used and could help distributed computing projects like ...
3
votes
3answers
1k views

How to turn on a high current electrical device? (water heater)

I am looking into a project to measure the temperature inside a water heater and turning it on based on: time, temp, etc. I am only on the theoretical phase since I am not sure it is possible. I ...
3
votes
1answer
675 views

How do I connect a DS18B20?

I'm trying to connect a DS18B20 to the GPIOs. I have successfully done so electronically, but I could only code the reset function because it's not that time critical. It is OK for that function to ...
8
votes
2answers
14k views

How to use a DS18B20 temperature sensor in my Pi?

I have a few DS18B20 temperature sensors. These are normally used in Arduino but I don't see why not to use them in a Pi. There is a software called DigiTemp that seems to drive the device and I have ...
32
votes
5answers
16k views

How to measure temperature?

What can I connect to the RPi to measure temperature? I think devices connected to the I²C or SPI would make most sense. Here is a question about DHT-22 and other 1-wire devices. But at this stage it ...
12
votes
4answers
9k views

Can I use a DHT22 as a temperature sensor for my Pi?

Is it possible to use a cheap temperature sensor such as the DHT-22 with the Raspberry Pi? I have found Arduino drivers for this and many similar things, and would be comfortable porting the code to ...
25
votes
1answer
8k views

What are the maximum operating temperatures of the components?

What are the main sources of heat on the board? What temperatures do these components reach under load?
13
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1answer
1k views

What is the temperature behaviour of a Raspberry Pi in an enclosure?

There has been some comment about suitable enclosures for the Pi and its temperature behaviour. Are there measured data for this?
33
votes
5answers
26k views

How do I monitor and/or control the temperature of the SoC?

Is there a way to programmatically monitor the temperature of the BCM2835 SoC? If so, would it do any good? i.e. would temporarily suspending CPU-intensive processes have any chance to reduce the ...
16
votes
1answer
6k views

What's the maximum / minimum running temperature?

As per the title, what are the maximum and minimum operational temperature ratings of the Pi before it stops reliably working? Could this also depend on the SD card in use?