{"id":18625758,"url":"https://github.com/fbiego/dt78","last_synced_at":"2025-06-26T02:33:49.210Z","repository":{"id":38939746,"uuid":"285030038","full_name":"fbiego/dt78","owner":"fbiego","description":"DT78 Smartwatch Reverse Engineering","archived":false,"fork":false,"pushed_at":"2024-07-28T13:18:29.000Z","size":34659,"stargazers_count":91,"open_issues_count":0,"forks_count":17,"subscribers_count":7,"default_branch":"master","last_synced_at":"2025-06-10T12:47:21.936Z","etag":null,"topics":["arduino","ble","bluetooth","dt78","dt78-firmware","firmware","hs6620","notifications","smartwatch","watch","watch-face","watchface"],"latest_commit_sha":null,"homepage":"","language":"C++","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":null,"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":".github/FUNDING.yml","license":null,"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},"funding":{"github":null,"patreon":null,"open_collective":null,"ko_fi":null,"tidelift":null,"community_bridge":null,"liberapay":null,"issuehunt":null,"otechie":null,"custom":"https://www.paypal.com/paypalme/biego"}},"created_at":"2020-08-04T16:00:56.000Z","updated_at":"2025-06-07T20:07:53.000Z","dependencies_parsed_at":"2024-07-28T14:56:54.671Z","dependency_job_id":null,"html_url":"https://github.com/fbiego/dt78","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/fbiego/dt78","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/fbiego%2Fdt78","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/fbiego%2Fdt78/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/fbiego%2Fdt78/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/fbiego%2Fdt78/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/fbiego","download_url":"https://codeload.github.com/fbiego/dt78/tar.gz/refs/heads/master","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/fbiego%2Fdt78/sbom","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":261986801,"owners_count":23240714,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","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","ble","bluetooth","dt78","dt78-firmware","firmware","hs6620","notifications","smartwatch","watch","watch-face","watchface"],"created_at":"2024-11-07T04:35:55.339Z","updated_at":"2025-06-26T02:33:49.159Z","avatar_url":"https://github.com/fbiego.png","language":"C++","funding_links":["https://www.paypal.com/paypalme/biego"],"categories":[],"sub_categories":[],"readme":"# DT78 \nDT78 Smartwatch Reverse Engineering\n\n+ [`DT78 with ESP32 PCB video`](https://youtu.be/O0CNbZo6Kx4)\n+ [`DT78 ESP32 firmware`](https://github.com/fbiego/dt78-esp32-firmware)\n\nhttps://github.com/user-attachments/assets/8dc41542-3ad4-4554-a023-f22332daad98\n\n\n## Firmware\n\nAnalysis of the firmware using `binwalk` [`analysis`](https://github.com/fbiego/dt78/blob/master/firmware/analysis.md)\n\nFirmware v8.05 and update procedure for iOS in chinese language [`here`](https://github.com/fbiego/dt78/tree/master/firmware/ios_ota_chinese)\n\n[HS6620 Dumping JTAG](https://github.com/rbaron/HS6620D-smartwatch-reveng)\n\n## BLE Protocol\n\n- [`commands`](https://github.com/fbiego/dt78/blob/master/DT78_COMMANDS.md)\n\n- [`types`](https://github.com/fbiego/dt78/blob/master/CMD_TYPES.md)\n\n\u003c!-- More info at this [`blog`](http://www.biego.tech/dt78) --\u003e\n\n## SPI flash\n\n- [`Watch faces`](https://github.com/fbiego/dt78/blob/master/firmware/watchface.md)\n\n## Hardware\n\n- [`FPC Connectors pinout`](https://github.com/fbiego/dt78/blob/master/HARDWARE.md)\n\n\n## Datasheets\nMain IC - [`HS6620D`](https://github.com/fbiego/dt78/blob/master/datasheets/HS6620D_data_sheet_V3.0.pdf)\n\nFlash Chip - [`XT25F128B`](https://github.com/fbiego/dt78/blob/master/datasheets/XTX-XT25F128BSSIGT.pdf)\n\nTouch IC - [`CST816S`](https://github.com/fbiego/dt78/blob/master/datasheets/CST816S.pdf)\n\nTFT LCD - [`GC9A01A`](https://github.com/fbiego/dt78/blob/master/datasheets/GC9A01A.pdf)\n\n## ESP32\n\n### LCD Touch Test\n\nThis arduino code [`dt78_lcd_touch_jpg`](https://github.com/fbiego/dt78/blob/master/dt78_lcd_touch_jpg/dt78_lcd_touch_jpg.ino) interfaces the LCD and touch screen with an ESP32 board. Images will be displayed from SPIFFS and can be scrolled using the touch screen.\n\n[`LCD Touch Test video`](https://youtu.be/1j1_iY0G4Cs)\n\n### Client\n\nThis arduino code [`dt78_ble_client`](https://github.com/fbiego/dt78/blob/master/dt78_ble_client/dt78_ble_client.ino) creates a client on the ESP32 board that connects to the smartwatch\n\nControl lights using the watch [`Video`](https://youtu.be/IGo9HJPbSt0)\n\n### Server\n\nThis arduino code [`dt78_ble_server`](https://github.com/fbiego/dt78/blob/master/dt78_ble_server/dt78_ble_server.ino) creates a server on the ESP32 board that emulates the services and characteristics of the DT78 smartwatch and connect to the WearFit 2.0 app\n\n## Android App\n\nSince this watch only supports notification from a few apps in the WearFit 2.0 app, I modified this code [`DT78-App-Android`](https://github.com/fbiego/DT78-App-Android) to send notifications to the watch\n\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Ffbiego%2Fdt78","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Ffbiego%2Fdt78","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Ffbiego%2Fdt78/lists"}