ICS PC connector design for KHR

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ICS PC connector design for KHR

Post by Raymond » Tue May 12, 2009 11:30 pm

Post by Raymond
Tue May 12, 2009 11:30 pm

Hi Guys,

I have read a response from Limor on the possible way to design a connector to make your own serial to pc connector for KHR. The problem is I followed the design and KHR does not see the connection. I believe the problem may be I'm not using the proper resistor. The pin layout proposed is as follows:

Pin 5 - ground-Black wire
Pin 4 & 2 (resistor bridge) - Red wire
Pin 3 - White wire

I do not want or need the USB connector as that ties you down to wires only and when u want wireless connectivity to the pc tiy either use blue tooth or standard serial hencemy reasoning. The conection class is supposed to be RS232C.

I sure hope you can help! It's rather odd the weak documentation that exists online to help secure the design.

Thanks

Mark
Hi Guys,

I have read a response from Limor on the possible way to design a connector to make your own serial to pc connector for KHR. The problem is I followed the design and KHR does not see the connection. I believe the problem may be I'm not using the proper resistor. The pin layout proposed is as follows:

Pin 5 - ground-Black wire
Pin 4 & 2 (resistor bridge) - Red wire
Pin 3 - White wire

I do not want or need the USB connector as that ties you down to wires only and when u want wireless connectivity to the pc tiy either use blue tooth or standard serial hencemy reasoning. The conection class is supposed to be RS232C.

I sure hope you can help! It's rather odd the weak documentation that exists online to help secure the design.

Thanks

Mark
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Post by limor » Mon May 18, 2009 11:55 am

Post by limor
Mon May 18, 2009 11:55 am

Hi Raymond

This must have been something discussed quite a while ago
can you please point to the thread where you found the information

tnx
Hi Raymond

This must have been something discussed quite a while ago
can you please point to the thread where you found the information

tnx
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Here's the link

Post by Raymond » Mon May 18, 2009 5:51 pm

Post by Raymond
Mon May 18, 2009 5:51 pm

Hi Limor,

Thanks for responding. Here's the link of the initial thread

http://robosavvy.com/forum/viewtopic.php?t=29

I welcome your advice/input

Cheers

Mark
Hi Limor,

Thanks for responding. Here's the link of the initial thread

http://robosavvy.com/forum/viewtopic.php?t=29

I welcome your advice/input

Cheers

Mark
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Any Luck?

Post by Raymond » Wed Jun 03, 2009 8:46 am

Post by Raymond
Wed Jun 03, 2009 8:46 am

Hi Limor,

Any chance to check the link or work your magic to help me ascertain what ohm resistor to use or if in fact there is a ready made connector to suffice.

Cheers

Mark
Hi Limor,

Any chance to check the link or work your magic to help me ascertain what ohm resistor to use or if in fact there is a ready made connector to suffice.

Cheers

Mark
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Post by limor » Mon Jun 08, 2009 5:14 pm

Post by limor
Mon Jun 08, 2009 5:14 pm

hi Raymond

I really can't remember the details. i kind of recall that this was some rough substitute for a MAX232 that converts the voltages between MCU boards and PC serial.
there are some talks in that thread about the meaning of that resistor.
I hope you have by now solved the problem or found another solution.
hi Raymond

I really can't remember the details. i kind of recall that this was some rough substitute for a MAX232 that converts the voltages between MCU boards and PC serial.
there are some talks in that thread about the meaning of that resistor.
I hope you have by now solved the problem or found another solution.
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