Fiber comms

For general Flowcode discussion that does not belong in the other sections.
Post Reply
Roy_Johnston
Posts: 16
http://meble-kuchenne.info.pl
Joined: Sun Apr 30, 2023 4:56 am

Fiber comms

Post by Roy_Johnston »

Has anyone used this boar with flowcode.
https://www.mikroe.com/fiber-opt-click.
or
has anyone been able to use flowcode for fiber comms.
Thank you

BenR
Matrix Staff
Posts: 2166
Joined: Mon Dec 07, 2020 10:06 am
Has thanked: 589 times
Been thanked: 778 times

Re: Fiber comms

Post by BenR »

Hello,

It looks like it should be fairly straightforward and just work with the serial UART component. If you give it a go then let us know how you're getting on.

RGV250
Posts: 433
Joined: Sat Mar 19, 2022 4:53 pm
Has thanked: 43 times
Been thanked: 44 times

Re: Fiber comms

Post by RGV250 »

Hi,
As Ben says, it looks like it is just a UART to Fiber converter. It does look interesting but there are no details of the distance it can send over which would be more important for me..

Regards,
Bob

chipfryer27
Valued Contributor
Posts: 1961
Joined: Thu Dec 03, 2020 10:57 am
Has thanked: 428 times
Been thanked: 647 times

Re: Fiber comms

Post by chipfryer27 »

Hi

Probably not difficult at all to interface to.

It uses plastic fibre which will have a loss of around a db/m, yep, per metre. Connector loss will be around 5db assuming you make a good connection and have a sharp Stanley :)

Most likely application would be in a noisy environment or when electrical isolation is crucial, and then over short distance.

A major issue is that it is multimode, so your led beam takes multiple paths within the fibre thereby elongating the pulse width, compounded by length. This reduces the maximum bit rate as decision circuits don't know if it is a 1 or 0 due to bleeding. You send 1 but as the pulse is elongated it is now stretched into the next time slot causing confusion.

At ten metres I am guessing your signal would be 100th of the transmit power, so you may get a usable 20m, but of course depends on quality of plastic, connection, led/diode combination, bit rate and fibre installation (avoid tight bends).

I would be interested in hearing how you get on.

Regards

Post Reply