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This post has been edited by skeelee: Aug 19 2022, 08:05 PM
Raspberry Pi, Rm100 computer that beats iPhone4S
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 Apr 12 2013, 12:55 PM
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285 posts Joined: Aug 2011 
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Apr 12 2013, 12:57 PM
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310 posts Joined: Apr 2008 
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QUOTE(skeelee @ Apr 12 2013, 12:55 PM) When there is insufficient juice from the power source, Pi will just power down and try to power up again, resulting in an endless on-and-off cycle. yeah, this is another side effect. Forgot to mention  |
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Apr 12 2013, 01:26 PM
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3,140 posts Joined: Jan 2003
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so if the power is inadequate, it will only cause Pi to shutdown..
guess I'm ok since I didn't face any shutdown issue so far.. but the interface for the openelec seem like a bit lagging.. the funny thing is.. I use a 8GB sandisk card.. after I format it n install with the openelec, windows will show only 1GB space.. any idea why? |
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Apr 12 2013, 01:38 PM
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310 posts Joined: Apr 2008
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QUOTE(shadow111 @ Apr 12 2013, 01:26 PM) so if the power is inadequate, it will only cause Pi to shutdown.. That's because different file system. The one you see in windows is the boot file system which guess I'm ok since I didn't face any shutdown issue so far.. but the interface for the openelec seem like a bit lagging.. the funny thing is.. I use a 8GB sandisk card.. after I format it n install with the openelec, windows will show only 1GB space.. any idea why? is in (FAT/FAT32) The system partition is on default (EXT3/EXT4)... you can view that using a ext file system reader in windows. |
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Apr 12 2013, 01:47 PM
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3,304 posts Joined: Mar 2006 From: Chicago(Port25)
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QUOTE(shadow111 @ Apr 12 2013, 01:26 PM) so if the power is inadequate, it will only cause Pi to shutdown.. From the way u asked, it so obvious u never bother to check the raspberry pi wiki page itself.guess I'm ok since I didn't face any shutdown issue so far.. but the interface for the openelec seem like a bit lagging.. the funny thing is.. I use a 8GB sandisk card.. after I format it n install with the openelec, windows will show only 1GB space.. any idea why? |
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Apr 12 2013, 02:01 PM
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285 posts Joined: Aug 2011
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This post has been edited by skeelee: Aug 19 2022, 08:05 PM |
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Apr 12 2013, 02:56 PM
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310 posts Joined: Apr 2008
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QUOTE(skeelee @ Apr 12 2013, 02:01 PM) Using Pi for any GUI such as Debian lxde, XBMC and OpenELEC will have quite a significant lag of up to several seconds. Don't forget that basically it could be just as powerful as your mobile phones. It is no where near the performance of any HTPC. haiz.. nowadays phones are powerful as well.. quadcore lagi.. |
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Apr 12 2013, 10:09 PM
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3,140 posts Joined: Jan 2003
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QUOTE(satz @ Apr 12 2013, 01:38 PM) That's because different file system. The one you see in windows is the boot file system which ic.. thanks bro..is in (FAT/FAT32) The system partition is on default (EXT3/EXT4)... you can view that using a ext file system reader in windows. |
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Apr 12 2013, 10:11 PM
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3,140 posts Joined: Jan 2003
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QUOTE(riku2replica @ Apr 12 2013, 01:47 PM) From the way u asked, it so obvious u never bother to check the raspberry pi wiki page itself. been busy lately.. till now, still didn't hv the times to play around with it..  |
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Apr 13 2013, 02:43 PM
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253 posts Joined: Sep 2005 From: Eye of Terror
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I wish I've oredered mine from e14 instead of rs online. so slow....
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Apr 13 2013, 05:12 PM
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1,185 posts Joined: Mar 2007
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Can someone explain to me how the two diodes (D1, D2) here protect the circuit?
Also why the 1N4008 since the voltages involved her are so low. Won't the 1N4001 do as well?  |
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Apr 13 2013, 09:20 PM
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3,140 posts Joined: Jan 2003
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QUOTE(totally_skint @ Apr 13 2013, 05:12 PM) Can someone explain to me how the two diodes (D1, D2) here protect the circuit? wrong thread? Also why the 1N4008 since the voltages involved her are so low. Won't the 1N4001 do as well? |
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Apr 13 2013, 09:23 PM
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3,140 posts Joined: Jan 2003
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QUOTE(avex|mode @ Apr 13 2013, 02:43 PM) I wish I've oredered mine from e14 instead of rs online. so slow.... how long hv u ordered? |
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Apr 13 2013, 09:24 PM
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310 posts Joined: Apr 2008
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QUOTE(totally_skint @ Apr 13 2013, 05:12 PM) Can someone explain to me how the two diodes (D1, D2) here protect the circuit? D2 - allow current flow one way ma..Also why the 1N4008 since the voltages involved her are so low. Won't the 1N4001 do as well? |
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Apr 13 2013, 09:39 PM
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1,185 posts Joined: Mar 2007
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QUOTE(shadow111 @ Apr 13 2013, 09:20 PM) wrong thread? PSU for Pi.  http://elinux.org/RPi_5V_PSU_construction QUOTE(satz @ Apr 13 2013, 09:24 PM) D2 - allow current flow one way ma.. I know diodes only allow one way flow of current.What I don't get is how it works in this circuit. |
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Apr 13 2013, 09:53 PM
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3,140 posts Joined: Jan 2003
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QUOTE(totally_skint @ Apr 13 2013, 09:39 PM) PSU for Pi. Sorry.. to technical for me... http://elinux.org/RPi_5V_PSU_construction I know diodes only allow one way flow of current. What I don't get is how it works in this circuit. |
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Apr 14 2013, 12:46 AM
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1,738 posts Joined: Jan 2003
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QUOTE(totally_skint @ Apr 13 2013, 09:39 PM) PSU for Pi. I think it's clear. http://elinux.org/RPi_5V_PSU_construction I know diodes only allow one way flow of current. What I don't get is how it works in this circuit. http://en.wikipedia.org/wiki/Diode#Over-voltage_protection It's to protect the circuit so it never go beyond the 5v spec of the pi |
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Apr 15 2013, 02:17 PM
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Junior Member
164 posts Joined: Jan 2006 From: Nibong Tebal 
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QUOTE(satz @ Apr 2 2013, 03:29 PM) wireless adapter - get edimax- pretty good. but u need to set up script for autoconnect (usually it disconnects for no reason) . can be done using crontab |
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Apr 15 2013, 05:52 PM
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1,185 posts Joined: Mar 2007
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QUOTE(zaidi @ Apr 14 2013, 12:46 AM) I think it's clear. It looks like its to protect against reverse polarity.http://en.wikipedia.org/wiki/Diode#Over-voltage_protection It's to protect the circuit so it never go beyond the 5v spec of the pi Please correct me if I'm wrong. BTW, I'm planning to build this circuit (minus the transformer parts). That's why I'm asking. |
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Apr 15 2013, 05:58 PM
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285 posts Joined: Aug 2011
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This post has been edited by skeelee: Aug 19 2022, 08:05 PM |
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