[time-nuts] Re: timing lab, remote control

[Robert LaJeunesse]

Here's the output half, 8 relays, remote IP web interface controlled over 10/100 RJ-45 (or simple string commands by RS-485 serial), for under $50:
https://www.walmart.com/ip/Diymore-NC-1000-Ethernet-RJ45-TCP-IP-Remote-Control-Board-8-Channel-Relay-Net-Controller/3934806669

Apparently NC-1000 clones (or maybe the original) are available elsewhere:
https://www.elecbee.com/en-23923-NC-1000-Ethernet-RJ45-TCP-IP-Remote-Control-Board-with-8-Channels-Relay-Integrated-AC250V-485-Networking-Controller-DC-7-24V

Bob L.

> Sent: Thursday, January 11, 2024 at 9:16 AM
> From: "Tom Van Baak via time-nuts" <time-nuts at lists.febo.com>
> To: "Discussion of precise time and frequency measurement" <time-nuts at lists.febo.com>
> Cc: "Tom Van Baak" <tvb at LeapSecond.com>
> Subject: [time-nuts] timing lab, remote control
>
> There was a posting from Skip a while ago that didn't come through. See 
> below for his request. Me too.
> 
> In my case, I have an area at home you could call my working bench. I 
> also have small room, less accessible, where I keep my best clocks with 
> as little human interference as possible. I'd like to improve its remote 
> monitoring and control over ethernet.
> 
> So the question is, does anyone make a black box that acts as a 
> transparent latch or GPIO? I'd like 8 or 16 bits at my bench that when 
> changed turn into bits in the remote lab. Ideally no setup, no protocol, 
> no commands, no software, no operating system, no bugs; just two boxes 
> with N pins on each end and changes are reflected from one to the other 
> over LAN. TTL/CMOS level is fine. Some latency is ok.
> 
> I'm not looking for yet another WiFi, Arduino/LAN, or R-Pi project, but 
> rather a turn-key solution that just works. I spent a significant amount 
> of time on the web, thinking this would be a trivial search, but I came 
> up empty.
> 
> Thanks,
> /tvb
> 
>  > I'm looking for a box that has an Ethernet port on one side and some 
> number or I/O
>  > (could be from 1 to n) on the other.  When two of these boxes are paired
>  > (by entering their respective IP addresses), the state of an input on 
> one box is
>  > reflected in the output of the other box (and vice versa).
>  >
>  > An example would be if I had a switch hooked to the input of one box, 
> its state would
>  > be reflected in the output of the paired box, such as controlling a 
> motor remotely.
>  >
>  > Any ideas?  Perhaps there might be a business opportunity here if it 
> doesn't exist.
>  > Thanks for the time,
>  > Skip Withrow
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