Re: [DIYbio] Re: qPCR fluorescence detection dynamic range

Can you add the respective run lengths of each protocol?

On Wed, May 22, 2013 at 12:07 PM, Jonathan Cline <jncline@gmail.com> wrote:
>
> On Monday, May 20, 2013 4:05:12 PM UTC-7, Josh W. Perfetto wrote:
>>
>> Ashley, the plan is to provide a very low-cost unit, ....
>>
>> very friendly software accessible
>> via wifi/ethernet/touch screen.
>
>
>
> Low-cost is not synonymous with providing these expensive system components
> (wifi/ethernet/touch screen). Don't even mention using likewise expensive &
> underwhelming arduino. $10 here, $10 there, it all adds up and is not very
> low cost. USB is a better bet, serial still the cheapest and simplest. For
> an automation system, a better bet is industrial grade wired bus with longer
> distance. Lab equipment typically doesn't move or alternatively if it's a
> field unit, it is plugged into a computer after logging data internally.
>
> Here's typical options for low cost communication. It's probably better to
> have independent power rather than run power through the communication link.
>
>
> RS-232 - UART framed, single ended, full duplex, non shared media, NRZ, up
> to a few hundred feet, non powered, non isolated.
>
> RS423 - UART framed, single ended, full duplex, non shared media, logic
> level, several hundred feet, non powered, non isolated.
>
> RS-422 - UART framed, differential, full duplex, non shared media, logic
> level, up to a thousand feet, non powered, non isolated.
>
> RS485 - UART framed, differential, half duplex, shared media, up to a couple
> thousand feet, non powered, non isolated.
>
> CAN/Fieldbus - UART framed, differential, half duplex, NRZ, powered, signal
> can be isolated.
>
> GPIB/IEEE-488 - parallel bus, logic level, short-range, shared media, high
> bandwidth, ruggedized connectors, very common in tech equipment, more
> expensive connectors & cabling in comparison to the others.
>
>
>
> --
> -- You received this message because you are subscribed to the Google Groups
> DIYbio group. To post to this group, send email to diybio@googlegroups.com.
> To unsubscribe from this group, send email to
> diybio+unsubscribe@googlegroups.com. For more options, visit this group at
> https://groups.google.com/d/forum/diybio?hl=en
> Learn more at www.diybio.org
> ---
> You received this message because you are subscribed to the Google Groups
> "DIYbio" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to diybio+unsubscribe@googlegroups.com.
> To post to this group, send email to diybio@googlegroups.com.
> Visit this group at http://groups.google.com/group/diybio?hl=en.
> To view this discussion on the web visit
> https://groups.google.com/d/msgid/diybio/06c8c217-1410-4ce8-b09c-80d59b4cda88%40googlegroups.com?hl=en.
>
> For more options, visit https://groups.google.com/groups/opt_out.
>
>



--
-Nathan

--
-- You received this message because you are subscribed to the Google Groups DIYbio group. To post to this group, send email to diybio@googlegroups.com. To unsubscribe from this group, send email to diybio+unsubscribe@googlegroups.com. For more options, visit this group at https://groups.google.com/d/forum/diybio?hl=en
Learn more at www.diybio.org
---
You received this message because you are subscribed to the Google Groups "DIYbio" group.
To unsubscribe from this group and stop receiving emails from it, send an email to diybio+unsubscribe@googlegroups.com.
To post to this group, send email to diybio@googlegroups.com.
Visit this group at http://groups.google.com/group/diybio?hl=en.
To view this discussion on the web visit https://groups.google.com/d/msgid/diybio/CA%2B82U9K11DHTnaE3aw7Qms3hdqYmZo2Y9v65y2KHLFUJAtwn4Q%40mail.gmail.com?hl=en.
For more options, visit https://groups.google.com/groups/opt_out.