projectMM Installer

This browser can't flash directly. Web Serial is required — open this page in Chrome or Edge on a desktop. Firefox and Safari don't support Web Serial. The release page on GitHub has the same binaries for manual flashing.

Step 1 — Pick a release + device and flash.

The picker shows stable releases, release candidates (v…-rc…), and a latest build published on every merge to main — all flagged (beta) except stables. Newest stable is the default; pick latest to try the newest unreleased changes.

USB Port

Erase chip first — wipes saved WiFi + board, adds ~12 s. Tick when switching firmware variant or starting clean. Apply device defaults — sets this device model's recommended modules/settings. Auto-ticks with erase; untick to keep your current config when re-flashing a configured device.

Device

Ethernet works out of the box for the device you pick — its PHY type and pins come from the catalog, no rebuild. Boards without Ethernet just use WiFi.

Step 2 — Get the device on your network.

Already configured (Ethernet cable, or WiFi set on a previous flash) — nothing to do. The device joins on boot and appears under "Your devices" below automatically.
New, over WiFi — the installer's Configure Wi-Fi step opens right after flashing: enter SSID + password, click Connect.
Skipped that step? The device boots a SoftAP MM-XXXX (4 hex digits from the chip MAC). Join it, open http://4.3.2.1, enter your WiFi credentials.

Your devices

Devices you've provisioned via this page are remembered in this browser. Clear browser data wipes the list.

Step 3 — Control your device: browser, phone app, or smart home.

Open the device's own web interface in a browser — at its mDNS name or its IP:

Open the web UI

http://<devicename>.local — the mDNS hostname tracks the device's name. Out of the box that's MM-XXXX (same 4 hex digits as the SoftAP / the name Improv reports), so http://MM-XXXX.local. Rename the device in its UI and the hostname updates to match. Works on most home networks.
or its DHCP-assigned IP, visible in your router's client list.

Prefer your phone, or your smart home? Control it from WLED Native or Home Assistant — see the getting-started guide.

Home Assistant

Updating an existing device? Check the migration notes for any breaking change — most updates need nothing, but a few ask you to re-set or re-add a control.

Source code and releases: github.com/MoonModules/projectMM.

projectMM Installer ?

Installing

Serial monitor