ratgdo Garage Door Controller

The ratgdo exists because of a cloud shutdown: when Chamberlain cut off third-party access to myQ in 2023, this small board — "Rage Against the Garage Door Opener" — became the community's answer. It wires directly to Chamberlain/LiftMaster openers (or any dry-contact opener), runs open-source firmware, and needs no account, no subscription, and no vendor server. As a hedge against exactly the kind of lock-in that killed its predecessor, it is one of the most BIFL-minded devices in the smart home.

Durability

The hardware is a simple ESP32 board with a wire harness — no motors, batteries, or moving parts to wear out. Long-term reports in the Home Assistant community are strongly positive, with multi-year installs described as flawless. The recurring complaints are configuration-related rather than hardware failures: Wi-Fi dropouts that trace back to router or mDNS settings, and false "obstructed" states when dry-contact obstruction wiring is connected without working sensors. Mount the board away from the opener's antenna, or remote range can suffer.

Repairability

Three open-source firmwares (ESPHome, native HomeKit, MQTT — all GPL) can be flashed and re-flashed from a browser over USB-C, so a corrupted or outdated device is always recoverable by its owner. One honest caveat: the official hardware design files are not published, so this is open firmware rather than open hardware — though the community has reverse-engineered and published working schematics, and people have successfully built their own boards from them.

Lock-in and ecosystem

This is the anti-lock-in device. Control and full status feedback run entirely on your LAN via ESPHome (native Home Assistant integration), HomeKit without any hub, or MQTT. It coexists with the myQ app rather than replacing it, and cloud voice assistants work through a Home Assistant bridge if you want them. The one hard boundary is set by Chamberlain, not ratgdo: new openers with Security+ 3.0 (late 2025 onward) encrypt out every aftermarket controller. If you are buying a new opener and want local control, check for the yellow learn button before you buy.

Longevity

The vendor-death test looks unusually good. The firmware is GPL-licensed across a community GitHub organization, the HomeKit variant is already maintained by contributors other than the creator, and Konnected independently rewrote the protocol stack into its own open-source library for a competing product — so the knowledge survives in at least two codebases. Paul Wieland now sells the boards through his own company, ratCloud LLC, and sales reportedly spiked each time Chamberlain tightened the screws. If every vendor involved disappeared tomorrow, an installed ratgdo would keep working indefinitely, because nothing about it ever depended on a server.