Simple Tally solution for an ATEM 2ME Production studio 4K

After switching from an ATEM camera which had tally light via the secondary SDI to another camera model I have lost the tally light function.
Now I am looking for a cheap and simple alternative.
It is just one camera but it is 10 meters from the switcher. I cannot do it over wifi due to the setup in the office. So some kind of wired solution is preferrable.
Just need som kind of red light when the studio cam is in pgm window on the ATEM 2ME Production studio 4K.
I am not that familiar with the tech behind all this to please speak slowly and clearly

buy atem tally module .. there are relays contact .. and add LED to camera and 10m cable .. easy DYI project for your friend , who is friend with soldering

Thanks for responding and sorry for my slow response.
But do you by any chance hav a schematics or any kind of description how to connect relay, lamp etc to the BMD tally box?

depend what you need ? small LED ? or bigger lamp ?

BTW : if U want only one tally lamp , buy something ready .. Friend making this :

https://wifitally.eu/en/

depend what you need ? small LED ? or bigger lamp ?

BTW : if U want only one tally lamp , buy something ready .. Friend making this :

https://wifitally.eu/en/

Your friend, have he paid some copyright to Aron Het Lam for use his code?

https://github.com/AronHetLam/ATEM_tall ... th_ESP8266

Your friend, have he paid some copyright to Aron Het Lam for use his code?

https://github.com/AronHetLam/ATEM_tall ... th_ESP8266

I dont know .. Ask him ..

GPL-3.0 license

Years ago I created a simple tally system using an Arduino, some DataVideo Tally lights that were pretty inexpensive, and some 3.5mm trs cables. It worked ok for a wired solution, I have a GitHub with the code, tally info and some photos of how it worked if you are curious:

https://github.com/reykroona/Atem-Tally-TD3

It was based on the Skaarhoj Arduino Atem Library, which I think he stopped updating, so I don't know if it would work with the Mini's or Constellations.

I'm sure there are better options out there now but at the time this was the best I could figure out for the price.