Watch V2.0 - Fully Open Source & Customaizable E-ink Watch Based on ESP32

What is Watch?

Watch is an e-paper watch with open source hardware and software. You can wear the PCB watch body directly, or you can use 3D printing equipment to print the case and strap for personal customization.

This is not only a unique timepiece, but also a wearable development platform with reserved IO ports, allowing users to connect various sensors, such as heart rate and blood oxygen sensors.

Watch's e-paper display provides clearly visible images in bright sunlight and does not require power between updates. The display has a pixel of 200x200 and displays in monochrome.

Watch supports WiFi and Bluetooth LE connections, and can connect to Internet APIs (such as weather, news, traffic, maps, Spotify, etc.) and devices that support Bluetooth LE.

Considering the needs of makers/hackers/tinkerers, we chose ESP32 because of its large community and support for various development options (Arduino, Micropython, ESP-IDF, Zephyr-RTOS, etc.)

Features & Specifications

1.Ultra-low-power e-paper 1.54" display with 200 x 200 resolution and wide viewing angle

2.Wi-Fi & Bluetooth LE connectivity

3.3-axis accelerometer with gesture detection

4.Real-time clock for accurate time keeping with calendar and alarm functions

5.Built-in USB-to-serial adapter for programming on the go

6.Vibration motor for alerts

7.Four tactile buttons

8.Open source hardware & software

9.Tons of examples & cool watch faces

10.Open source 3D case designs

Battery life

Watch wakes up every 60 seconds, checks the accelerometer, real-time clock, and updates the electronic paper display screen with the latest information. Some watch faces also turn on WiFi to get weather data..

The battery life of the Watch is 5-7 days when only keeping time, and 2-3 days when acquiring data over WiFi. These numbers can be extended with further optimization (e.g. sleeping during non-working hours, waking only on motion/tilt, etc.)

Version Options

Note

Please be sure to select hardware version V2.0 when flashing

Wireless Network Settings

1. Click Set Up Wifi in the main menu of your watch.

2. Connect to the "Watch Ap" wifi from another device (such as a mobile phone or computer/laptop).

3. Open 192.168.4.1 in your browser. On an iPhone, this page will open by itself when connected to wifi.

4. Click on "Configure WiFi".

5. Enter the SSID and Password. (Note: the SSID may be pre-filled from the network listed at the top of this screen)

6. Click the "Save" button and wait.

7. If the connection fails, the watch will display "Setup failed and timed out!" otherwise it will display the local IP address and SSID of the connected network and confirm it.

Package Content

Watch V2.0

1 x Watch V2.0 Including 200mAh battery(45x34x10mm)

1 x Velcro strap for Watchy（black 24mm x 250 mm）

Watch V2.0 Plus

1 x Watchy V2.0 PLUS(50.36x43.6x14.55mm)

1 xSilicone watch strap(Black 125mm /75mmx25mm)

1X USB cable