TRMNL: The Open Source Smart Display You Can Build Yourself

Published at : 23 Dec 2025

Meet TRMNL, a minimalist open-source smart display that keeps your calendar, tasks, and weather in sight without distractions. In this video, I’ll show you how TRMNL works, what it costs, and whether you should buy one or build your own.

#TRMNL #SmartDisplay #Productivity

ADDITIONAL INFORMATION
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Check out TRMNL's web store - https://mklements.short.gy/trmnl

Visit my blog for the project write-up - https://www.the-diy-life.com/trmnl-the-open-source-smart-display-you-can-also-build-yourself/

Download my enclosure 3D Print Files - https://makerworld.com/en/models/1817285-diy-trmnl-enclosure

TRMNL's BYOD Documentation - https://docs.usetrmnl.com/go/diy/byod

PURCHASE LINKS
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TRMNL - https://mklements.short.gy/trmnl

BYOD Version:
ESP32-S3 XIAO - https://amzn.to/3Vp5Mxj
7.5" Monochrome e-Ink Display 800x480 - https://amzn.to/3VV6Glg
E-Ink Driver Board for XIAO - https://amzn.to/4naOBvJ
2000mAh Battery - https://amzn.to/4n7LOmT
BYOD TRMNL License - https://mklements.short.gy/trmnlbyod
PLA Sparkle Filament - https://mklements.short.gy/DgbYQb
M2.5x6mm Screws - https://amzn.to/3KyvVYb
M2.5 Brass Inserts - https://amzn.to/4musoYu

Tools & Equipment Used:
Bambulab H2D 3D Printer - https://us.store.bambulab.com/products/h2d
Hakko Soldering Iron - https://amzn.to/4kA9n5U
USB C Pencil Screwdriver - https://amzn.to/4lWg5Ec

Some of the above parts are affiliate links. By purchasing products through the above links, you’ll be supporting this channel, at no additional cost to you.

CHAPTERS
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0:00 Intro
0:42 TRMNL (OG)
2:13 Web Interface
3:52 DIY Version
8:08 Final Thoughts

If you've got any ideas for Raspberry Pi, Arduino, or other Electronics projects or tutorials you'd like to see, let me know in the comments section.