Raspberry Pi Forums

thogue

Having this issue now, Sadly the Pi i decided to plug into is a 256. So memory seems to be an issue here too.

Looking forward to trying to get motion working.

thogue

if your poly return to less resistance you will most likely want todo something about it. On my rev1 Pi, I bridged both sides of the poly with small piece of wire :shock: . Surely NOT advised :lol: but I have been running that rpi every second since and had no issues (with a tested power supply). So...

thogue

swapped out the pi today with a model B.

Much better now

0.0% 2098 1.2 1.0 0.9 6.0 0.3

thogue

Looks like it could be related to power issues on the other Pi (known blown poly).
Finally a good test on the new setup.
0.0% 10304 1.1 0.9 0.8 17.0 0.4

thogue

well, totally different pi/sdcard/cable/network/psu/fresh install. I still seeing .1 percent. However this is my first test here with this setup could be a random loss of a single ping. I will try a few more tests. Loss Count 0.1% 7836 1.1 0.9 0.9 18.7 0.2 From what I have seen a slight bit of load ...

thogue

I figured I would bump this thread.

I am having ping drop issue about .2 - .4 % packet loss. Most recent Arch as of 2 days ago. Hardwired. Confirmed switch and network equipment is 200% percent. No tx/rx errors at either side, etc.

Anyone else experiencing issues?

thogue

I dont know why you can't go over 1000C, It really depends on the thermocouple. K types go into the 1000C range http://en.wikipedia.org/wiki/Thermocouple

thogue

@Beantown_Brewer: You need have the SPI driver installed, it comes with the most recent builds (pretty sure) Not sure if both are required but the first one is, I know some other SPI things I have played with in the past required spidev so i am not sure. modprobe spi_bcm2708 modprobe spidev Then onc...

thogue

Just found this, kudos to you sir!

thogue

Thanks BlueBill, I know there was something I was missing on that circuit, I was unsure of switching 24vac, only thing that really made me know it was safe was looking at what other thermostats were using.

thogue

Bluebill: Could you possibly dump some knowledge on me? I surely am in need of a snubber, I just pulled a "104" cap, pretty sure its 0.1uF rated at 50v, and a 100ohm 1/4watt resister. Am I correct that all that needs to be done is connect the resistor side goes to hot, in my case R and cap...

thogue

Yeah, I considered the radio thermostat options, seems REALLY straight forward.

I am really interested in other temperature control applications, Like kilns. I figured this would be a fun start to get the brain flowing.

thogue

ive used USBtenki

http://www.raphnet.net/electronique/usb ... dex_en.php

worked well.

thogue

Introduction : I started this project because of my interest in PID algorithms and Temperature control in general. This is really the first "program" I have written, so I was hoping to get some feedback before I finish and someone turns around with some advice that results it it being re-w...

thogue

Wpa_roam You have have multiple access points in your wpa-supplicant.conf and it will connect to what is available and to the higher priority one multiple are available. You just just be able to add the access points via wpa_gui and be good to go. I manually configured mine via /etc/network/interfac...

thogue

Jessie wrote:How long does the Pi last? Extra long since it has been taking herbal male enhancements for men.

So what were trying to say here is, the pi is going to outlast you, and that's what everyone wants isn't it ?

(ps, I run my pi very hard, no doubt they will outlast us all)

thogue

In a nutshell, and this is as detailed as I can get , you need to do the following: setup a static ip on your rpi setup a compatable static ip on your laptop use a crossover cable to connect the two together directly SSH from your laptop to your rpi using the static ip address you setup in step 1. ...

thogue

About to read your lengthy post ::Edit:: just read it, thank you so much for the lesson! , I would just like to say thanks everyone for your replies. Honestly I had never looked how a transistor worked until yesterday and I made a general understanding but the math certainly had not clicked yet, I t...

thogue

damn mobile devices, setting up a "darlington pair" right now

thogue

Actually I tried all 3 transistors. I also have tried using two transistors as that seemed like a logical move when I saw I was seeing half the current draw then what was needed.... But it didn't do the trick and quickly made question my understanding.

thogue

Well I went to ratshack and picked up a 5v relay to try to control my first relay via the rPi, here are my parts. 275-0240 - 5v - SPDT Relay (http://htyp.org/275-0240_Radio_Shack_5-volt_relay) an NPN transistor pack, (2N222A , 2N3904, 2N4401). 1k ohm, 1/4 watt, 5 % tolerance. GPIO -> 1kohm -> Base o...

thogue

Just formatted another card, and running another test. root@raspberrypi:~# hdparm -tT --direct /dev/mmcblk0 /dev/mmcblk0: Timing O_DIRECT cached reads: 44 MB in 2.07 seconds = 21.29 MB/sec Timing O_DIRECT disk reads: 64 MB in 3.01 seconds = 21.27 MB/sec root@raspberrypi:~# ^ no overclock, /dev/mmcbl...

thogue

/dev/mmcblk0: Timing O_DIRECT cached reads: 40 MB in 2.05 seconds = 19.50 MB/sec Timing O_DIRECT disk reads: 62 MB in 3.01 seconds = 20.61 MB/sec Linux raspberrypi 3.2.27+ #250 PREEMPT Thu Oct 18 19:03:02 BST 2012 armv6l GNU/Linux Running your stable settings. :ugeek: Voltage has always been good.

thogue

Sorry If I wasnt clear, but the slowdown occurs once I pass 900/overvolt2, Speeds are good at 900/overvolt 2, but 950 overvolt6 1000overvolt6, cause the slowness, im 99.999999 percent positive that I was on the same version as you. But I can always try again, id I would be happy to try your values. ...

thogue

I searched around and didn't see anything about this. Overclocking causes SD card to slow down. I tested with 3 different SD cards. One of which was a brand new 8GB class 10, Once I pass 900/2overvolt setting I get dramatically slower sc card speeds with a DD test. (read and write slower) I tested 2...

Search found 131 matches

Re: Camera module problem with motion

Re: Brand new rPi + bad F3 polyfuse

Re: Dropping Pings

Re: Dropping Pings

Re: Dropping Pings

Re: Dropping Pings

Re: MAX31855 Thermocouple driver

Re: MAX31855 Thermocouple driver

Re: MAX31855 Thermocouple driver

Re: Thermostat314 - rPi/python powered Thermostat

Re: Thermostat314 - rPi/python powered Thermostat

Re: Thermostat314 - rPi/python powered Thermostat

Re: usb temperature logger

Thermostat314 - rPi/python powered Thermostat

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Re: How long does the pi last?

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Re: Relay not switching...

Re: Relay not switching...

Re: Relay not switching...

Relay not switching...

Re: Overclocking

Re: Overclocking

Re: Overclocking

Overclocking causes SD card to slow down.