GS7
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Rapoo 9060

Mon May 28, 2012 6:06 pm

Hi guys,

Do any of you know if this keyboard and mouse will work with the pi ?

http://rapoo.com/showdetails.aspx?P_No=9060

my other half has bought me it for when my pi arrives

Alan

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Re: Rapoo 9060

Mon Jun 04, 2012 11:12 pm

I have here a Rapoo E9070 and there are some problems with the keyboard as described in the wiki. I have to replug the receiver between 2 to 3 times and get then a stable input. Sometimes after a while, the receiver repeats keys also after a reboot. I have to replug the receiver again...

The receiver is plugged into a 2A hub and works perfectly under Windows. It must be some driver problem. The mouse is ok and works fine.

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mahjongg
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Re: Rapoo 9060

Tue Jun 05, 2012 12:10 am

I'm guessing the radio transceiver for this set isn't a true "single current unit" USB device, and thus doesn't work directly connected to RPI USB ports. The RPI only directly supports single current unit USB devices (using less than 100mA, and working on 4.4 Volt supplies). You need an USB hub for this set, unlike other wireless set who do strictly cohere to USB specs.
Unfortunately the sets specifications are very vague.

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Re: Rapoo 9060

Tue Jun 05, 2012 8:32 am

mahjongg wrote:You need an USB hub for this set, unlike other wireless set who do strictly cohere to USB specs.
In my configuration the receiver is connected to the USB hub (with 2 Ampère supply)... Without hub, the function is even worse.

GS7
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Re: Rapoo 9060

Wed Jun 06, 2012 9:29 pm

Hi Guys,

Have only tried it for a short time but it seems to work perfectly (both mouse and keyboard), with the dongle plugged directly into the pi.

Here is a link to the keyboard and my picture of it

http://www.maplin.co.uk/rapoo-wireless- ... 060-628862

Cheers,

Alan.
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mahjongg
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Re: Rapoo 9060

Thu Jun 07, 2012 10:13 am

Yes the resistance of the USB polyfuses differ all over the place, if you are lucky they can be something like 3 Ohm, if you are unlucky they can be something like 7 ohm. As per 100mA a one ohm resistance "eats away" 0.1 Volt from the 5V from the PSU you can see that if you are trying to draw 200mA and are unlucky enough to have a 7 ohm polyfuse it drops 1.4 Volt, leaving only 3.6 volt for the circuit to work with.
Its no wonder it won't work under such conditions.

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