{"id":48947504,"url":"https://github.com/fbiego/chronos-watchy","last_synced_at":"2026-04-17T17:33:00.243Z","repository":{"id":351732834,"uuid":"1079797125","full_name":"fbiego/chronos-watchy","owner":"fbiego","description":"Alternative BLE firmware for Watchy (Open Source E-Ink smartwatch)","archived":false,"fork":false,"pushed_at":"2026-04-16T07:55:07.000Z","size":4044,"stargazers_count":33,"open_issues_count":1,"forks_count":2,"subscribers_count":3,"default_branch":"master","last_synced_at":"2026-04-16T09:37:23.058Z","etag":null,"topics":["ble","chronos","e-ink","esp32","lvgl","smart-watch","watchy"],"latest_commit_sha":null,"homepage":"https://chronos.ke/watchy","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/fbiego.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,"zenodo":null,"notice":null,"maintainers":null,"copyright":null,"agents":null,"dco":null,"cla":null}},"created_at":"2025-10-20T12:01:20.000Z","updated_at":"2026-04-16T07:58:37.000Z","dependencies_parsed_at":null,"dependency_job_id":null,"html_url":"https://github.com/fbiego/chronos-watchy","commit_stats":null,"previous_names":["fbiego/chronos-watchy"],"tags_count":2,"template":false,"template_full_name":null,"purl":"pkg:github/fbiego/chronos-watchy","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/fbiego%2Fchronos-watchy","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/fbiego%2Fchronos-watchy/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/fbiego%2Fchronos-watchy/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/fbiego%2Fchronos-watchy/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/fbiego","download_url":"https://codeload.github.com/fbiego/chronos-watchy/tar.gz/refs/heads/master","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/fbiego%2Fchronos-watchy/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":31938787,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-04-17T17:29:20.459Z","status":"ssl_error","status_checked_at":"2026-04-17T17:28:47.801Z","response_time":62,"last_error":"SSL_connect returned=1 errno=0 peeraddr=140.82.121.6:443 state=error: 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":["ble","chronos","e-ink","esp32","lvgl","smart-watch","watchy"],"created_at":"2026-04-17T17:32:59.548Z","updated_at":"2026-04-17T17:33:00.238Z","avatar_url":"https://github.com/fbiego.png","language":"C","funding_links":[],"categories":[],"sub_categories":[],"readme":"# Chronos Watchy\n\n**Chronos-Watchy** is an **alternative firmware** for the **Watchy open-source e-ink smartwatch**, built with **LVGL** and designed to connect seamlessly with the [`Chronos App`](https://chronos.ke/), a modern companion app for smartwatch users.\n\n\u003e ⚠️ This firmware is currently compatible with **Watchy v2.0**.\n\u003e Tested successfully on an **AliExpress clone** with **USB Type-C**.\n\n## Screen Previews\n\n![screens_1](images/screens_1.png?raw=true \"screens_1\")\n\n![screens_2](images/screens_2.png?raw=true \"screens_2\")\n\n## Features\n\n* 📱 **BLE Connectivity**: Syncs directly with the **Chronos App**\n* 🕓 **Default Watchface**: Displays time, phone battery, and last sync time\n* 🧭 **Navigation**: Turn-by-turn directions from Google Maps or OSMAnd\n* 🔔 **Notifications**: Receive app notifications from your phone\n* 👣 **Activity Tracking**: Steps with distance, and calorie estimation (+ historical data)\n* 🌤️ **Weather Updates**: Synced from Chronos App\n* 🌙 **Sleep Mode**: Controlled from the Chronos App; reduces power usage\n* ⚙️ **Settings Menu**: Customize connection interval and view configs\n* 📷 **Pairing via QR Code**: Quick setup with the Chronos App\n* 🎶 **Controls**: Camera, Music, Find Phone controls (Only when connected)\n* 🔗 **QR Code Links**: Save QR Code links on Watchy\n* 📞 **Contacts**: Save contact info on Watchy\n* 🕹️ **Multiple Watchface**: Installable at runtime via BLE, [`Watchy Faces`](https://github.com/fbiego/watchy_faces)\n\n## Planned / To-Do\n\n* ⚡ Non-blocking operations (BLE \u0026 storage handled in background tasks)\n* ✋ Raise-to-wake gesture\n* 👆 Double-tap to wake\n* ⏰ Alarm and reminder system\n* 🌍 Multi-language support\n\n\n## Flashing the Firmware\n\n### Option 1: Use Prebuilt Firmware (Recommended)\n\n#### a. https://chronos.ke/watchy#install\nJust connect and flash firmware directly\n\n#### b. https://espressif.github.io/esptool-js/\n\nPrebuilt binaries are included in the `firmware/` directory, ready to flash, no build required.\n\nYou can use the **browser-based ESP flasher** provided by Espressif:\n\n[**Flash Chronos Watchy via Web here**](https://espressif.github.io/esptool-js/)\n\n1. Open the link above in **Chrome**\n2. Connect your Watchy via USB\n3. Click **Connect** under Program then select the correct serial port\n4. Select the prebuilt `.bin` files from the `firmware/` folder, use the correct address as indicated in the file name\n5. After flashing, your Watchy will automatically boot into Chronos-Watchy\n\u003e You may need to connect to the **Console**, then click **Reset**\n\n\n### Option 2: Build Manually with PlatformIO\n\n1. Install [PlatformIO](https://platformio.org/install)\n2. Clone this repository:\n\n   ```bash\n   git clone https://github.com/fbiego/chronos-watchy.git\n   cd chronos-watchy\n   ```\n3. Build the firmware:\n\n   ```bash\n   pio run\n   ```\n4. Flash to the watch:\n\n   ```bash\n   pio run -t upload\n   ```\n\n## App Setup Guide\n\n\u003ca href='https://chronos.ke/app?id=esp32'\u003e\u003cimg alt='Download Chronos' height=\"100px\" src='https://chronos.ke/img/chronos.png'/\u003e\u003c/a\u003e\n\n[`Chronos App`](https://chronos.ke/)\n\n### Connecting / Pairing\n\n1. Open the **Chronos App → Watch tab → Watches → Pair new device**\n2. On Watchy, open the **Pairing screen**\n3. Choose the device from the app’s list (or tap **Search again**)\n4. Alternatively, select **Manual** to enter the MAC address or **Scan QR code** displayed on Watchy\n\n\n### Configuration\n\n* **Time Format** -\u003e 12h / 24h\n* **Temperature** -\u003e °C / °F\n* **Units** -\u003e Metric / Imperial\n\nUnder the **User** tab:\n\n* Set your **age, height, and weight** (used for calorie and distance estimation)\n* Configure **Sleep Time**, during which Watchy enters deep sleep until wakeup\n\n\n### Weather Setup\n\n1. Go to **Settings → Weather Update**\n2. Tap the ⚙️ **gear icon**\n3. Enable **weather updates**\n4. Choose **Use GPS** or manually enter your city, then click **Check**\n5. If successful, click **Save**\n\n\n### Notifications\n\n1. In the **Notifications tab**, enable access using **Notification Access**\n2. Tap **Self Test** to verify Chronos can read notifications\n3. Select **Apps** and choose which apps can send alerts to Watchy\n\n\n### Navigation\n\n1. In the **Watch tab**, scroll down to **ESP32 Manager**\n2. Enable **Navigation** for your Watchy device\n3. (Optional) Adjust **icon dither mode** and **threshold** for icon clarity\n4. Open **Navigation screen** on Watchy\n   * If BLE is disconnected, tap the rotating ⚙️ icon to restart\n5. Open **Google Maps** or **OsmAnd** and start navigation\n   * Directions will appear on your Watchy in real time\n\n\u003e ⚠️ Note: Navigation keeps BLE active continuously, which increases battery drain.\n\n### Advanced Settings\n\n* **App Sleep**: Prevents the app from trying to reconnect while Watchy is in sleep mode\n* **Notification Buffer**: Stores and forwards notifications to Watchy when BLE reconnects\n\n\n## Credits\n\n* **Official Watchy Firmware**: Based on the open-source [Watchy project](https://watchy.sqfmi.com/) and its [firmware repository](https://github.com/sqfmi/Watchy)\n* **Chronos ESP32 Library**: Provides seamless smartwatch connectivity with the Chronos app. [GitHub](https://github.com/fbiego/chronos-esp32)\n* **Chronos App**: Companion app for smartwatch sync and notifications. [Website](https://chronos.ke/)\n* **LVGL**: Powerful open-source embedded graphics library. [Website](https://lvgl.io/)\n* **LVGL Pro**: Used for UI design and layout. [Website](https://pro.lvgl.io/)\n* **Watchy Faces**: Watchfaces for the Chronos Watchy firmware. [Github](https://github.com/fbiego/watchy_faces)\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Ffbiego%2Fchronos-watchy","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Ffbiego%2Fchronos-watchy","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Ffbiego%2Fchronos-watchy/lists"}