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Author Topic: Need help Serial to Parallel conversion  (Read 4250 times)

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Offline scadabg

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Re: Need help Serial to Parallel conversion
« Reply #30 on: January 24, 2010, 01:13:51 PM »
Thanks Scadabg but from where do i get it.

cheers



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Offline sidzTopic starter

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Re: Need help Serial to Parallel conversion
« Reply #31 on: January 30, 2010, 07:56:21 PM »
@ Soeren, I have posted the details earlier of the voltage levels that i get when the transmitter is ideal,
what do you suggest? does the data seems ok... should i proceed.

Offline sidzTopic starter

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Re: Need help Serial to Parallel conversion
« Reply #32 on: February 01, 2010, 12:30:55 PM »
hey thanks Pratheek,
I think you do not need a MAX 232 IC between the USB to serial converter you are using and your microcontroller. I guess the USB to serial converter itself gives you +0 and +5 V outputs.

Could you post a picture of the converter you are using.

As i said earlier the output of the USB2Serial converter is hardly 0.3 volts when checked with a digital multimeter.
Secondly I am using a ready made USB2Serial converter so does a picture help? if yes please let me know will post the picture and the details.

Offline Soeren

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Re: Need help Serial to Parallel conversion
« Reply #33 on: February 01, 2010, 04:21:27 PM »
Hi,

@ Soeren, I have posted the details earlier of the voltage levels that i get when the transmitter is ideal,
what do you suggest? does the data seems ok... should i proceed.
You can't see dynamic signals above 5..10Hz on a DVM, it's like trying to measure your pulse with a thermometer (well, sort of at least).

Either find someone who can help you with measuring it with an oscilloscope, or make a divider/level translator feeding a counter like 4040 and see if some of the higher order output pins will reveal a change between 0V and Vdd (B+).
Regards,
Søren

A rather fast and fairly heavy robot with quite large wheels needs what? A lot of power?
Please remember...
Engineering is based on numbers - not adjectives

 


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