TRMNL Programming

Hi,

I don’t see anything in the TRMNL screen documentation. Can it be programmed with Arduino?

I didn’t see anything on their website either, just information about plugins.

Looks like Arduino should be fine; scroll down like 70% here https://www.seeedstudio.com/blog/2025/09/19/build-your-own-custom-e-ink-display-with-the-trmnl-diy-kit/ (seeed also has a couple more guides here at the bottom TRMNL 7.5" DIY E-ink Dashboard Kit | Seeed Studio x TRMNL Official )

Also see works with Arduino | Seeed Studio Wiki

Wait just a second…

You have to buy a license as well?
What happens if Trmnl goes out of business?

As far as I can tell, the license enables the use of the apps (‘plugins’)…but the 1st doc I shared has a blurb near the beginning about using an esp32 or Arduino and that they can be used without a license as well that way

I came here for the same reason. No documentation. I followed the link in this thread to see what information was out there, but it mostly only directs people to buy the BYOD license. There’s no information on how to use it without that license - at least, there wasn’t any that I could find. It only says that you can program it without that license, but without a schematic and further details, it’s at least very difficult to do so.

I’m not sure if we’re clicking through different links or something but works with Arduino | Seeed Studio Wiki looks like a step-by-step guide, there’s also a main page Getting Started with TRMNL 7.5inch(OG) DIY Kit | Seeed Studio Wiki with links to their forum, discord, etc

I see it now.
This should be linked on the product page.

1 Like

Good idea, I’ll get it added :slight_smile: