New Opto Endstop

Hi,

I just released a new opto endstop PCB which is now available in Europe.

Goal re-designing the official 2.1 endstop was to be compatible with a variety of parts without having to cut a trace.
The new board can take H21LOB or equivalent as well as a wide range of 4-pin analogue optocouplers. Configuration is done by a simple solder bridge.
A screw terminal can be used to wire it up.

All components are through-hole.

Eagle Files (.tar.gz):
[reprapsource.com]

Documentation:
[reprapsource.com]

License: GPL V2.

Hope you like it.

A belated "thank you", joaz. I live in the USA and just got some pcbs from Ultimachine and built them using the Omron EE-SX498 and they are working great! Since the H21LOB is now hard to get, this is a work-alike that includes the hysteresis that makes the H21LOB special. I'm glad to have these tiny boards and I don't want any stinking RJ-45 connectors either.

I didn't need a pull-up so I skipped R1, and I used 220 ohms for R2 and 1K for R3 (with a high efficiency LED) and it's "Golden". Yes, the LED being on when the output is LOW is kind of weird, but I wanted a low output so that it would signal "endstop" if the cable failed. The compliment EE-SX398 could also be used for the opposite output signal if that is more someone's style.

Thanks again for your flexible and, in computer years, timeless design.

joaz Wrote:
-------------------------------------------------------
> Hi,
>
> I just released a new opto endstop PCB which is
> now available in Europe.
>
> Goal re-designing the official 2.1 endstop was to
> be compatible with a variety of parts without
> having to cut a trace.
> The new board can take H21LOB or equivalent as
> well as a wide range of 4-pin analogue
> optocouplers. Configuration is done by a simple
> solder bridge.
> A screw terminal can be used to wire it up.
>
> All components are through-hole.
>
> Eagle Files (.tar.gz):
> [reprapsource.com]
> opto_endstop/rrs_opto_endstop_r1.tar.gz
>
> Documentation:
> [reprapsource.com]
>
> License: GPL V2.
>
> Hope you like it.

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