Raspberry Pi Forums

dpenezic

Hi, it works for me :) ... first be sure you have latest raspbian distribution. sudo su - apt-get update apt-get upgrade then please read information on follow URL : http://elinux.org/RPi_Low-level_peripherals especially "General Purpose Input/Output (GPIO)" parts. Basically you need to un...

dpenezic

Hi,

I use raspbian image from Raspberry Pi site without any aditional (non official) update. I did test steps from previous post in this thread, and everything was O.K. .

Regards,
Dubravko Penezic

dpenezic

Hi, unplug everything , even SD card, be sure SD card isnt read only, plug SD card and power micro USB only, wait couple of minute and observe PWR and ACT led . From your picture i saw you use HDMI to VGA adapter which may draw power from RPi, same is with USB conection cable (spouse that is Keyboar...

dpenezic

Hi,
may you send picture of RPi connection cable .
Regards,
Dubravko Penezic

dpenezic

1.1A fuse should have max 0,2 ohms... Should, but RPi doesn't. Way no one knows exactly. For example the new one bought yesterday (yes, i have few) have 0,8 ohms and work normal, of course my power supply have 5.34V (one of my product). If you like you may put new one with better specification, but...

dpenezic

HI, sorry for English, understanding German is relatively easy for me, but writing is something else :) . In your case i will suggest you to found power supply with 5.24V output. F3 is O.K. , bad characteristic come from bad selected parts, which is unfortunately standard case on most RPi. Also stan...

dpenezic

Hi,
many thing may be issue, from you digital multimeter till RPi power supply . Does RPi working , any sign of LED activity ?

Regards,
Dubravko Penezic

dpenezic

Hi,
nice to hear that your settings work

.

Unfortunately link to your picture dont work, so i dont see your current settings, however everything work, so we realy dont needed for fixing this issue.

Have a nice using of your RPi,
Regards,
Dubravko Penezic

dpenezic

Hi,

please read http://www.raspberrypi.org/phpBB3/viewtopic.php?t=35155 .

Regards,
Dubravko Penezic

dpenezic

Hi,

connection is looking O.K. ... please try to connect your DS18B20 directly to RPi without PiPlate .

Regards,
Dubravko Penezic

dpenezic

Hi,
may you send picture of your wire connection ?

Regards,
Dubravko Penezic

dpenezic

Hi, It is nice to hear that your RPi is working correctly :) . Your LED blink dont work if you start w1-gpio, because that kernel module start software support for 1-wireless master device, and that is O.K. . Do you use RPi camera board ? or any other I2C devices ? Did you try with just one DS18B20 ...

dpenezic

Hi,

Which version of kernel you use ? From some version you may use any available GPIO pin for 1-wire master input.

Try to restart RPi, and remove w1-gpio and w1-therm module, then try to use LED for blink testing.

Regards,
Dubravko Penezic

dpenezic

Hi all, i must said i didnt read all post in this thread carefully, but i have one practice notice. First DS1307Z isnt good enough for RTC functionality on long run (error is to "big") instead I suggest to use DS3231. In both case use CR2032 battery. Finally it works for me on few places w...

dpenezic

Hi,
interesting tutorial, I have only one suggestion.
Instead of using RRDTools, store date in file/SQLite/MySQL database and visualization data using Highgraph.js .

RRDTool lost date by definition, and many time it is nice to have data like was collected.

Regards,
Dubravko Penezic

dpenezic

Hi Pete, your picture show possible cause of issue :) ... like i said many times , picture have value of 1000 words ;) . Pleas, remove RTC module (which is I2C), comment I2C kernel module and try again. Regards, Dubravko Penezic Hi Folks Thanks for your observations. No time recently to do further t...

dpenezic

Hi, like people said many times, it works for me, on many different devices :) ... how ever i suggest to you to send picture of your wire connection for beginning. That is first and 90% of all errors come from wrong connection. Second it will be nice to know which operating system you run on your RP...

dpenezic

Hi, please provide picture of your connection. Did you execute follow command before read temperature : sudo modprobe w1-gpio && sudo modprobe w1_therm Regards, Dubravko Penezic I acquired a model B from ModMy Pi in November, running the NOOBS distro on the RPi 8GB SD card. It all ran fine o...

dpenezic

Hi, thanks for information, and nice step-by-step tutorial. Some time ago i add to my list to upgrade to latest version of GitLab on my RPi. Right now i will do that :). Regards, Dubravko Penezic By following most of user dpenezic's instruction I installed the current stable version of Gitlab (6.4) ...

dpenezic

Hi, usually DS18B20 get hot if you miss-configure GND and Power ... like @rpdom said no picture is available to check your connection, and resistor need to be 4K7 at least. Regards, Dubravko Penezic Hey. I have some problems with my temperature sensor. It gets really hot after dome seconds when boot...

dpenezic

Hi, reading temperature from sensor is describe in URL http://learn.adafruit.com/adafruits-raspberry-pi-lesson-11-ds18b20-temperature-sensing/ds18b20 Depends of language you use in your project, you may use any system function/procedure which call system shell command, or just read file. Hope that h...

dpenezic

Hi, not only wireless, you must count on slow RPi response, syslog use UDP packages, so you must count that some package may be lost . In your place i will look on RPi like very small, low performance server. For example, i run on one of my RPi GitLab, which is slow but work even if i am only user o...

dpenezic

Hi, simple answer is yes, however you must all the time count on "slow" and "low" level traffic. For logging you will need category 10 SD card. Regards, Dubravko Penezic I'm very new to Pi and have done quite a bit of poking around on google seeking these answers, and I think I'm...

dpenezic

Hi, maybe I know :) ... did you set same parameters on PC and RPi connected to speed, data correction, and word length in bits ? Please read http://elinux.org/RPi_Serial_Connection for more info. Regards, Dubravko Penezic I have tried to transmit and receive data serially using the Tx and Rx pins of...

dpenezic

Hi, from your message isnt clear what help you need. What type of program, what display module you use or plane to use , etc. ? Little more information will help other people to help you or point you to place where you may found a help. Regards, Dubravko Penezic Actually I 'm stuck with my final sem...

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