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💬 Join the OpenGate DiscordWhat is Tollan?
The Tollan gate is a reskin of the SG-1 (Basic) gate: same static Milky Way electronics and logic, dressed in a different design.
Its construction is similar to the Pegasus gate, but with a few differences detailed in the steps below — 3D models, LED strips, and firmware.
3D Printed Parts
Tollan uses its own dedicated 3D models — don't reuse the Pegasus or SG-1 STL files, the ring design and mounting points are different.
Hardware Differences
The core circuit and the PCB are exactly the same as the Pegasus and SG-1 models. However, there are two main differences for this build:
- LED Strips: Tollan only needs two NeoPixel strips instead of three (no glyph ring). Cut them to 36 LEDs for the event horizon and ~44 LEDs for the chevron ring — trim any excess during assembly to fit your printed parts. Full breakdown on the BOM page.
- Sound Effects: the microSD card uses the same global sound pack as every other gate — it already contains every door's sounds, no Tollan-specific file needed.
🔌 Which PCB — V1, V2 or V3?
This gate can be built either way — separate strips, or one single continuous strip — and all three boards can drive it. The board photo above shows the V1, which is simply the one most builds have used so far — it is not a requirement.
- PCB V1 — three LED outputs (chevrons, glyphs, event horizon). Tollan uses two of the three outputs (chevrons and event horizon, no glyph ring). With one single strip instead, plug it into the chevron connector.
- PCB V2 and V3 — one single LED output. Plug your single strip straight in. V3 is the same board as V2 with a barrel jack instead of USB-C.
Does anything else change? No. Same ESP32, same DFPlayer Mini, same sound pack, same calibration, same DHD. The only difference is on the Flash a Gate page, where you pick Single LED strip instead of Multiple LED strips. Nothing in the assembly steps below depends on which board you chose.
Firmware & DHD
Tollan runs its own firmware build: the DHD (dial-home-device interface) has a different skin from SG-1's, so make sure to select the Tollan firmware — not SG-1 or Atlantis — when flashing your ESP32.
Everything else — wiring, general assembly — follows the exact same steps as the Pegasus gate!
