Re: EPICS support for device to monitor Digital I/O

[Mark Rivers via Tech-talk <tech-talk at aps.anl.gov>]

Hi Pra,

I would suggest the Measurement Computing E-DIO24. 

ttps://digilent.com/shop/mcc-e-dio24-24-channel-digital-i-o-ethernet-device/?srsltid=AfmBOordR53pCT2ogJrXgtrD3JWhHL4242b9yNh5GIws7gu3b0WDBMqb

It provides 24 digital I/O lines, individually programmable as inputs or outputs.  It is "overkill" for your application, but only costs $335.

I have written EPICS support for nearly all Measurement Computing Ethernet and USB devices.  The supports works on Linux and Windows.

https://github.com/epics-modules/measComp

https://epics-modules.github.io/measComp/

The time saved by not needing to develop EPICS software seems worth $335 to me.

Mark

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From: Tech-talk <tech-talk-bounces at aps.anl.gov> on behalf of P B via Tech-talk <tech-talk at aps.anl.gov>
Sent: Friday, June 20, 2025 1:31 AM
To: tech-talk at aps.anl.gov <tech-talk at aps.anl.gov>
Subject: EPICS support for device to monitor Digital I/O

 

Hello, 

I am relatively new to EPICS. I am trying to look for an option to monitor a single TTL signal on a Linux PC running EPICS. 

Using something like a DAQ is overkill. Ideally, I am thinking of something like the FT232H chip. Is there support for something equivalent to this? Or any suggestions on a quick and easy way to achieve this within EPICS? 

Thanks. 

Pra