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Raspberry Pi, Rm100 computer that beats iPhone4S
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orangutan
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Jan 10 2015, 04:15 PM
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QUOTE(sky03 @ Jan 10 2015, 03:01 PM) i was wondering if raspi could work with laptop wifi card since some of them have much higher performance... the ones with mpcie connector. i mean i could solder some wires to usb ports. any1 hav tried this before? It should work and don't forget the driver. Check if one exist and can work in a RPi before even starting.
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wcypierre
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Jan 10 2015, 06:35 PM
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Newbie Programmer
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QUOTE(sky03 @ Jan 10 2015, 03:01 PM) i was wondering if raspi could work with laptop wifi card since some of them have much higher performance... the ones with mpcie connector. i mean i could solder some wires to usb ports. any1 hav tried this before? I would suggest against that. Raspberry Pi doesn't have *that amount of* bus bandwidth that normal PC has. Not to mention that you need to write the driver to make it working.
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joytest
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Jan 10 2015, 10:54 PM
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QUOTE(sky03 @ Jan 10 2015, 03:01 PM) i was wondering if raspi could work with laptop wifi card since some of them have much higher performance... the ones with mpcie connector. i mean i could solder some wires to usb ports. any1 hav tried this before? QUOTE(wcypierre @ Jan 10 2015, 06:35 PM) I would suggest against that. Raspberry Pi doesn't have *that amount of* bus bandwidth that normal PC has. Not to mention that you need to write the driver to make it working. pierre is correct. USB only has D+ and D- pins. There are way more pins in mPCIe that handle CLK etc. And I'm sure you would also have to write the driver.
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sky03
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Jan 11 2015, 12:02 PM
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Getting Started

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QUOTE(orangutan @ Jan 10 2015, 02:08 PM) I've no problem watching 1080p movies over wifi but encounter some problems with 5.1 audio channel. Some things to consider is 1. Your Wifi router 2. How many device is connected to the wifi 3. Users' wifi usage 4. WIfi module on RPi btw can u suggest me a very good wifi adapter for raspi? currently i use d-link dwa123 11n but i notice sumtimes the signal level would drop...
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wcypierre
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Jan 11 2015, 09:42 PM
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Newbie Programmer
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QUOTE(sky03 @ Jan 11 2015, 12:02 PM) btw can u suggest me a very good wifi adapter for raspi? currently i use d-link dwa123 11n but i notice sumtimes the signal level would drop...  what are you doing actually? the signal drop depends on your distance with the router, as well as the antenna used(internal or external, for your case would be internal).
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sky03
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Jan 11 2015, 10:10 PM
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Getting Started

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QUOTE(wcypierre @ Jan 11 2015, 09:42 PM) what are you doing actually? the signal drop depends on your distance with the router, as well as the antenna used(internal or external, for your case would be internal). i noe the fact that the further away from the router would result in lower signal... but the thing is at 1st the signal was really full bar and after period of time it suddenly deteriorates to a single bar... i have no idea wat causes this... btw i had modded the wifi dongle and add an external antenna so it would transmit the signal better. i could still get the signal even i left the router in my room n went downstairs... This post has been edited by sky03: Jan 11 2015, 10:12 PM
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wcypierre
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Jan 11 2015, 10:50 PM
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Newbie Programmer
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QUOTE(sky03 @ Jan 11 2015, 10:10 PM) i noe the fact that the further away from the router would result in lower signal... but the thing is at 1st the signal was really full bar and after period of time it suddenly deteriorates to a single bar... i have no idea wat causes this... btw i had modded the wifi dongle and add an external antenna so it would transmit the signal better. i could still get the signal even i left the router in my room n went downstairs... are you doing anything network related all the time? probably the raspberry pi is saving power on the usb wifi dongle perhaps? but still, there's nothing with it though. This post has been edited by wcypierre: Jan 11 2015, 10:53 PM
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sky03
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Jan 11 2015, 10:55 PM
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Getting Started

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QUOTE(wcypierre @ Jan 11 2015, 10:50 PM) are you doing anything network related all the time? probably the raspberry pi is saving power on the usb wifi dongle perhaps? but still, there's nothing with it though. well other than being a router nothing else.... btw does pi hav dat kind of power saving features? if yes how to disable it?i m using model B+
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orangutan
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Jan 12 2015, 08:38 AM
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QUOTE(sky03 @ Jan 11 2015, 12:02 PM) btw can u suggest me a very good wifi adapter for raspi? currently i use d-link dwa123 11n but i notice sumtimes the signal level would drop...  Read below http://en.wikipedia.org/wiki/MIMOhttps://wikidevi.com/wiki/Realtek
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wcypierre
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Jan 12 2015, 09:05 AM
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Newbie Programmer
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QUOTE(sky03 @ Jan 11 2015, 10:55 PM) well other than being a router nothing else.... btw does pi hav dat kind of power saving features? if yes how to disable it?i m using model B+ At the terminal: 1. iwconfig 2. nano /etc/network/interfaces 3. add "wireless-power off" after any wlan0 lines i.e auto wlan0 wireless-power off 4. reboot 5. iwconfig and you will see that your power management is now off.
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sky03
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Jan 12 2015, 11:51 AM
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Getting Started

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QUOTE(wcypierre @ Jan 12 2015, 09:05 AM) At the terminal: 1. iwconfig 2. nano /etc/network/interfaces 3. add "wireless-power off" after any wlan0 lines i.e auto wlan0 wireless-power off 4. reboot 5. iwconfig and you will see that your power management is now off. thx for the tips. i just realized that the adapter had its power management turned off even before i changed anythg... i suspect ter muat be sumthg wrong with either the power supply to it from raspi or theressumthg wrong with the driver itself... i m using rtl8188eu driver btw....
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sky03
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Jan 12 2015, 07:53 PM
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Getting Started

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QUOTE(wcypierre @ Jan 12 2015, 09:05 AM) At the terminal: 1. iwconfig 2. nano /etc/network/interfaces 3. add "wireless-power off" after any wlan0 lines i.e auto wlan0 wireless-power off 4. reboot 5. iwconfig and you will see that your power management is now off. and based on the log roght after the signal sudden a drop it shows R8188EU: ERROR ap recv di$$ecv disassoc reason code(8) sta:80:71:7a:45:03:ab any1 hav idea y this happening?
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wcypierre
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Jan 12 2015, 08:20 PM
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Newbie Programmer
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QUOTE(sky03 @ Jan 12 2015, 07:53 PM) and based on the log roght after the signal sudden a drop it shows R8188EU: ERROR ap recv di$$ecv disassoc reason code(8) sta:80:71:7a:45:03:ab any1 hav idea y this happening? http://www.aboutcher.co.uk/2012/07/linux-w...d-reason-codes/Reason Code 8: Operating System moved the client to another access point using non-aggressive load balancing. You can try the workaround at here, but I'm sure whether it will work for your case or not. https://github.com/lwfinger/rtl8188eu/issues/35Anyway, try to replace your power supply to a better source and use a better cable(better quality and shorter would be better)
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sky03
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Jan 13 2015, 10:48 AM
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Getting Started

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QUOTE(wcypierre @ Jan 12 2015, 08:20 PM) http://www.aboutcher.co.uk/2012/07/linux-w...d-reason-codes/Reason Code 8: Operating System moved the client to another access point using non-aggressive load balancing. You can try the workaround at here, but I'm sure whether it will work for your case or not. https://github.com/lwfinger/rtl8188eu/issues/35Anyway, try to replace your power supply to a better source and use a better cable(better quality and shorter would be better) i haven't tried this method yet but wat i did was i use different version of drivers n so far so good. but i will keep on monitoring how it perform... btw thx for your verdict on this matter. really appreciate it
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sarf2k4
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Jan 19 2015, 11:20 PM
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hi guys, a friend of mine asked me to be their tutor for the raspi workshop but i myself didnt have raspi myself so i dont know what should i deliver, its a hands on workshop, what content should i deliver eg creating a wifi router, time lapse camera or something
thank you in advance
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zaidi
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Jan 20 2015, 09:43 AM
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QUOTE(sarf2k4 @ Jan 19 2015, 11:20 PM) hi guys, a friend of mine asked me to be their tutor for the raspi workshop but i myself didnt have raspi myself so i dont know what should i deliver, its a hands on workshop, what content should i deliver eg creating a wifi router, time lapse camera or something thank you in advance You did not do any raspi project before yet they asked you to tutor them? then your name precede you. just ask them what they wanted to know
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wcypierre
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Jan 20 2015, 10:05 AM
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Newbie Programmer
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QUOTE(sarf2k4 @ Jan 19 2015, 11:20 PM) hi guys, a friend of mine asked me to be their tutor for the raspi workshop but i myself didnt have raspi myself so i dont know what should i deliver, its a hands on workshop, what content should i deliver eg creating a wifi router, time lapse camera or something thank you in advance you must be good then
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sky03
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Jan 20 2015, 11:52 AM
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Getting Started

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QUOTE(sarf2k4 @ Jan 19 2015, 11:20 PM) hi guys, a friend of mine asked me to be their tutor for the raspi workshop but i myself didnt have raspi myself so i dont know what should i deliver, its a hands on workshop, what content should i deliver eg creating a wifi router, time lapse camera or something thank you in advance sifu!!!
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CmLimExa
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Jan 20 2015, 12:02 PM
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Getting Started

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Hey guys; Does anyone in here know how to use a Raspberry Pi to create something like a Home Media PC that can be used to watch movies on the TV, preferably with a HDMI output? Very new to this thing and very interested. Please teach me
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smile93
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Jan 20 2015, 12:12 PM
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QUOTE(CmLimExa @ Jan 20 2015, 12:02 PM) Hey guys; Does anyone in here know how to use a Raspberry Pi to create something like a Home Media PC that can be used to watch movies on the TV, preferably with a HDMI output? Very new to this thing and very interested. Please teach me  http://www.raspbmc.com/
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