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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How can I install the KY-001 temperature sensor on my Raspberry Pi 2 B? [duplicate]

I'm a beginner and know basically nothing about Raspberry Pi. Recently I bought a sensor kit and a breadboard, but there are no tutorials for them. So how can I, for example, install a temperature ...
9
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1answer
213 views

Why is my Raspberry Pi 2 so hot?

I have one raspberry PI and two PI-2, side by side, inside a little cupboard. I'm constantly monitoring their temperature. I'm worried because one of the Pi-2 is quite hot. The PI and the hot PI-2 ...
2
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5answers
115 views

How do I retrieve data from another Pi on the same network?

I would like to combine two tutorials (here and here) that I have found on sensing temperature with Raspberry Pis. I am already able to retrieve the temperature from the DS18B20 on multiple pis. ...
2
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1answer
161 views

DS18b20 temperature sensor not found [duplicate]

Trying to install DS18b20 temperature sensor but it looks like the RPi cannot find it. From console: sudo modprobe w1-gpio sudo modprobe w1-therm cd /sys/bus/w1/devices/ ls But there is nothing ...
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2answers
117 views

Raspberry Pi failing to read sensors in -20 degree F

I am currently developing a sensor box and plan on running it outside. Temperatures can get as low as -40 degrees F and once my box reaches an internal temperature of 32.18 degrees F it fails to read ...
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3answers
2k views

DS18B20 temperature sensor not registered - debugging?

Like other posters I have connected the temperature sensor (from ModMyPi Hacker Kit) a variety of ways and can not get my Raspberry Pi 2 to recognise it. I have unsuccessfully followed posts to ...
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2answers
1k views

How to hook up an AM2302 temperature & humidity sensor several feet away from the Raspberry pi?

I have a raspberry pi running pipgio and am using the provided code under the python section to get the temperature and humidity reading from the AM2302 (http://www.adafruit.com/products/393). If I ...
3
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1answer
229 views

GPIO Temperature Sensor not Recognized

I recently tried to connect a temperature sensor (http://www.adafruit.com/product/381) to my RasPi via the GPIO, with a 4.7k (2Watt) resistor connecting the power and data (Source: ...
3
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1answer
604 views

DS18B20 not fully working on Raspberry Pi

I've followed instructions through various sites which have all given the same information about wiring the DS18B20 sensor to a Raspberry Pi (red is 3.3V, black is ground, white connects to GPIO pin 4 ...
7
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1answer
3k views

DS18B20 not listed in /sys/bus/w1/devices

I'm starting work on a fermentation monitor using the Adafruit temperature sensing tutorial, a RPi B+ running Raspbian, a 4.7 kOhm resistor and a DS18B20 to which I've soldered male breadboard pins. ...
3
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1answer
150 views

Monitor temperature in fahrenheit

Using raspbian right now. I know you can add the temperature plugin to the panel, but it only shows Celsius. How can this be changed? Or is there another program I can use that will work better?
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1answer
188 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, ...
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1answer
118 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 ...
2
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1answer
129 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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3answers
2k 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 ...
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0answers
73 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
147 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
113 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
244 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 ...
0
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2answers
452 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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2answers
380 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
93 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
794 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
102 views

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

At what temperature will the Pi's processor work fastest?
0
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1answer
114 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 ...
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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
204 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
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3answers
501 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
1k 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
226 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
2k 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 ...
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1answer
332 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 ...
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1answer
3k 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
1k 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
681 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?
2
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2answers
2k 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
185 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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vote
1answer
132 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
792 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? ...
-4
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1answer
18k 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
votes
1answer
551 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 ...
5
votes
5answers
16k 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
12k 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
1k 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
100 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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2answers
133 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 ...
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1answer
2k 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
178 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 ...
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5answers
202 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 ...
5
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2answers
1k 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 ?