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Projector & hardware

Aug 26, 2026 · 1:11 video

Mounting the Pi and the HDMI workaround

I turn the temporary HDMI connection into a mounted setup above the desk, working around the case and connector fit.

WHERE THIS TEST ENDED

The computer-to-Pi-to-projector setup is mounted. Hand interaction is the next thing to test.

  1. Pi video output
  2. HDMI connection
  3. Mounted projector
  4. Desk image

Make the connection physically fit

The previous update used an old HDMI switcher to get an image onto the projector. Here I try to mount the arrangement with the Raspberry Pi, then run into a case problem while fastening it.

The footage follows that physical rework rather than a new tracking algorithm. The constraints are the connectors, the enclosure, the mounting space, and access to the hardware.

Move the assembly above the desk

After reworking the assembly, I mount it with the projector. The useful outcome is the display chain in place: the computer connects to the Pi workflow, and the Pi supplies the image the projector puts on the desk.

Raspberry Pi 5 uses micro-HDMI connections. In this episode the adapter and case arrangement is a workaround while waiting on a better-fitting cable, not a required design for every Pi mount.

The distinction between a display and an interface

A projected image is only the visible half of the desk. The camera and interaction software still have to connect hand movement to the dashboard, which is why the following updates focus on tracking, lighting, and calibration.

About this breakdown

Matched to this original TikTok, including its spoken captions. The result above describes this episode; later work is identified separately.

Breakdown checked September 6, 2026.