Desktop Dock and Glas-styled Wall Sconce for Seeed Studio TRMNL DIY kit with 24-pin B/W or 50-pin Colour Display

This is a minimalist desktop enclosure and Glas thermostat-inspired wall sconce to display your Seeed TRMNL DIY kit with the 24-pin 7.5" B/W TRMNL display or the 50-pin 7.3" E Ink Spectra 6 Colour display.

Note: Choose the correct Core dock depending on which connector you're going to use.  They both can use the same cover plate and sconce.

The angled desktop enclosure comes in two parts, the base unit and the snap-in cover.  I printed my base unit in glossy black PETG with additional wall loops for added heft and stability.  The base unit will need supports enabled when printing.  You may also wish to paint in extra supports for the bottom curve and back arch if your slicer doesn't generate supports for it.

There are slots in the base unit to insert the XIAO ePaper Display Dev Board and connected battery and WIFI antenna, and an additional top opening to keep pens or paperclips. There is a bottom channel for the 24-pin or 50-pin display ribbon cable to connect to the display board. There is no need to use extension connectors or ribbons. 

The snap-in cover includes holes and labels for the power switch, three user-programmable buttons, the reset button, the USB-C charge port, and the charging LED.  The cover can be printed with two colours to make the labels more visible.  If there is a need to remove the cover, I found it easiest to slide a screwdriver or table knife up through the bottom to push it out.

The wall sconce can be printed vertically with supports, but tilting it backward 45 degrees (and painting additional supports on the back surface) will allow the curved front edge to print more cleanly, making it look better on the wall. You can also try printing it upside-down, but it may make the top bevels look a little crusty.  Once printed, it can attach to the wall with two #8 screws, or there are grooves on the back for two small 3M Velcro Command Strips.  The desktop enclosure slides into the wall sconce for vertical display, and once in, it creates a hidden compartment in the middle of the sconce to store spare money or keys.

The desktop stand can be lifted out of the sconce to sit on a table or counter for charging.

The enclosure and the sconce together are designed to look like the Johnson Controls Glas thermostat, so to recreate the original look, print the enclosure in glossy black and the sconce in glossy light silver (I used metallic silver silk ABS filament, as my silver PETG was a darker, less silvery shade).  I had also sprayed on a layer of clear gloss acrylic spray to the front of the (empty) enclosure and the front and sides of the sconce for extra shine.

More about the TRMNL Kit here: https://www.seeedstudio.com/TRMNL-7-5-Inch-OG-DIY-Kit-p-6481.html

More about the color display here: 7.3" spectra™ 6 E-Ink / ePaper Display with 800x480 Pixels, SPI interface, Support XIAO/Arduino

More about the gorgeous (but discontinued) Glas thermostat here: GLAS

My display is connected to Home Assistant using Puppet, pointing to a custom dashboard that is oversaturated so it looks best on the Spectra Colour ePaper.