dt78's Introduction

DT78

DT78 Smartwatch Reverse Engineering

Firmware

Analysis of the firmware using binwalk analysis

Firmware v8.05 and update procedure for iOS in chinese language here

HS6620 Dumping JTAG

BLE Protocol

SPI flash

Watch faces

Hardware

FPC Connectors pinout

Datasheets

Main IC - HS6620D

Flash Chip - XT25F128B

Touch IC - CST816S

TFT LCD - GC9A01A

ESP32

LCD Touch Test

This arduino code dt78_lcd_touch_jpg interfaces the LCD and touch screen with an ESP32 board. Images will be displayed from SPIFFS and can be scrolled using the touch screen.

LCD Touch Test video

Client

This arduino code dt78_ble_client creates a client on the ESP32 board that connects to the smartwatch

Control lights using the watch Video

Server

This arduino code dt78_ble_server 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

Android App

Since this watch only supports notification from a few apps in the WearFit 2.0 app, I modified this code DT78-App-Android to send notifications to the watch

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dt78's Issues

Weather support

Hey I have an L11 watch model and it has a widget for weather but it doesn't update when I connect it to my phone with DT78 works fine with the official app, is there any plans of adding support to this?

Request: Pls add packet for disabling an alarm

Hi,

would you be so kind to include the packet to disable an alarm. Having problems with the App, I finally wrote a simple Python3 script to set the time on my DT78 from Linux. I'd like to be able to control the alarms from it too.

Thx a ton

fbiego / dt78 Goto Github PK