{"id":21556716,"url":"https://github.com/spouliot/tilt-relay","last_synced_at":"2026-04-30T22:36:57.314Z","repository":{"id":141986904,"uuid":"468875465","full_name":"spouliot/tilt-relay","owner":"spouliot","description":"ESP32 Tilt Hydrometer Relay to Brewfather","archived":false,"fork":false,"pushed_at":"2022-03-13T23:48:25.000Z","size":11,"stargazers_count":0,"open_issues_count":0,"forks_count":0,"subscribers_count":2,"default_branch":"main","last_synced_at":"2025-06-09T19:49:17.768Z","etag":null,"topics":["arduino","brewfather","esp32","platformio","tilt"],"latest_commit_sha":null,"homepage":"","language":"C++","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"mit","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/spouliot.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null}},"created_at":"2022-03-11T19:27:43.000Z","updated_at":"2022-03-13T00:16:30.000Z","dependencies_parsed_at":"2023-04-26T01:17:14.345Z","dependency_job_id":null,"html_url":"https://github.com/spouliot/tilt-relay","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/spouliot/tilt-relay","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/spouliot%2Ftilt-relay","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/spouliot%2Ftilt-relay/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/spouliot%2Ftilt-relay/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/spouliot%2Ftilt-relay/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/spouliot","download_url":"https://codeload.github.com/spouliot/tilt-relay/tar.gz/refs/heads/main","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/spouliot%2Ftilt-relay/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":32479448,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-04-30T13:12:12.517Z","status":"ssl_error","status_checked_at":"2026-04-30T13:12:06.837Z","response_time":57,"last_error":"SSL_read: unexpected eof while reading","robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":false,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["arduino","brewfather","esp32","platformio","tilt"],"created_at":"2024-11-24T08:09:39.199Z","updated_at":"2026-04-30T22:36:52.303Z","avatar_url":"https://github.com/spouliot.png","language":"C++","funding_links":[],"categories":[],"sub_categories":[],"readme":"# tilt-relay\n\nA [ESP32](http://esp32.net)-based [Tilt Hydrometer]([Tilt](https://tilthydrometer.com) Relay to [Brewfather](https://brewfather.app/)\n\n```mermaid\ngraph LR\n    A[Tilt\u003cbr/\u003eHydrometer] ---\u003e|Bluetooth LE\u003cbr/\u003eiBeacon\u003cbr\u003egravity / temperature| B\n    B[ESP32\u003cbr/\u003emicrocontroller] ---\u003e|WiFi\u003cbr/\u003ehttp POST\u003cbr/\u003ejson| C[brewfather.app]\n```\n\n## Support\n\n* [Tilt](https://tilthydrometer.com/products/copy-of-tilt-floating-wireless-hydrometer-and-thermometer-for-brewing)\n* [Tilt Pro](https://tilthydrometer.com/products/tilt-pro-wireless-hydrometer-and-thermometer)\n* BrewFather [Custom Stream](https://docs.brewfather.app/integrations/custom-stream)\n\n## Why ?\n\nThe bluetooth signal from the Tilt Hydrometer is not strong enough to get\nthrought stainless fermenters (e.g. kegs) inside a metalic fermentation\nchamber  (e.g. a freezer). This means the default brewfather integration\nfor the Tilts might now work properly without additional hardware.\n\nSeveral solutions exists but the cheapest one is to use a microcontroller\ninside the fermentation chamber (e.g. freezer) to listen to the bluetooth\nsignal and then relay it, using more powerful WiFi, to the brewfather app.\n\n## How To Build\n\n### Hardware\n\n* A [ESP32](http://esp32.net) microcontroller\n\nI used a [M5StickC](https://shop.m5stack.com/products/stick-c?variant=17203451265114).\nIt's main advantage is that it comes pre-installed inside it's own case.\nIt also has a small screen (not really needed for this project) and comes\nwith a short USB cable (more useful to develop than for a permanent\ninstallation). Sadly it's now EOL and any supplies are likely be limited.\n\nThere is a newer [M5StickC Plus](https://shop.m5stack.com/collections/m5-controllers/products/m5stickc-plus-esp32-pico-mini-iot-development-kit)\nmodel with a _larger_ screen. However it's pricier, does not come with\na USB cable and provide no additional/useful features for this project.\n\nA cheaper option is the screen-less [Atom Lite](https://shop.m5stack.com/collections/m5-controllers/products/atom-lite-esp32-development-kit?variant=32259605200986)\nbut, from other projects, I found it's WiFi antenna is less powerful and\nyou might have issues (from inside a freezer) to connect it to your WiFi\nnetwork. YMMV.\n\n### Software\n\n* Install [VSCode](https://code.visualstudio.com)\n* From VSCode install the [PlatformIO](https://platformio.org) extension\n* Clone this repository\n* Include your own `private.h` file with your WiFi credentials and your BrewFather [Custom Stream](https://docs.brewfather.app/integrations/custom-stream) URL\n\n#### Example\n\n```c\n#ifndef __PRIVATE_H__\n#define __PRIVATE_H__\n\n#define DEFAULT_SSID        \"wifi-ssid\"\n#define DEFAULT_PASSWORD    \"wifi-password\"\n#define BREWFATHER_URL      \"/stream?id=XXXXXXXXXX\"\n#endif\n```\n\n* Build the project\n* Deploy to your ESP32 microcontroller\n\n## See Also\n\n* [Tilt Simulator](https://github.com/spouliot/tilt-sim)\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fspouliot%2Ftilt-relay","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fspouliot%2Ftilt-relay","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fspouliot%2Ftilt-relay/lists"}