Trying out the demo firmware

1. Grab a demo firmware (For your device)

   • From official releases, probably less experimental ;)

     • https://github.com/Szybet/InkWatchy/releases

   • Recent (Still compare dates), experimental one from actions. This is not supported that much, there may be no files to download there:

     Explanation video

     Kooha-2024-06-02-22-57-46.webm
2. Notes
   • You need a 4Mb binary file for the watchy v2 and 8Mb for the watchy v3. If it's zipped in any way, unzip it
   • Watchy 2.0 sometimes (most often...) doesn't work with USB 3.0. You need a true 2.0 (or less, 1.1, 1.0) port or hub.
   • Make sure your user has access to serial devices
     • On linux, you may need to add your user to dialout or uucp groups and reboot
3. Flash
   • Easiest way, using webserial
     • You need a chromium based browser: Google chrome, chromium, brave etc.
     • Select the device, on linux those will be ttyACM or ttyUSB never ttyS.
     • Depending on what website you use, remember one thing: the offset is 0x00000, there is only one file to upload
     • After flashing, you may need to refresh the page, reconnect (maybe in log mode this time) and reset the device yourself. If the website of your choice doesn't have a reset button, try another website or reset the device manually (On the Watchy v3, there is a reset sequence)
     • Here are the links, Try both of them, maybe one will work, but sometimes nothing worked. If so, go to the esptool method.
       • https://adafruit.github.io/Adafruit_WebSerial_ESPTool/
       • https://github.com/espressif/esptool-js
   • Esptool
     • Download esptool
       • On linux, download it from your distro repositories
       • Standalone binaries, download for your platform and extract it https://github.com/espressif/esptool/releases
       • Or those instructions: https://docs.espressif.com/projects/esptool/en/latest/esp32/installation.html#installation
     • Launch it (terminal) - the program binary should be in the same directory for this example:

esptool.py write_flash 0x00000 demo-program.bin

Now you should have a working demo. Further notes:

• You need to create a hotspot with SSID hotspot and password 12345678 to sync the time in the demo. It can't be changed because It requires recompilation for now.
• The time zone might not be right, check here again, the demo is just to decide if it's worth for you to compile it manually
• The password for the vault is 5
• The first boot may be a bit slower, max 10 seconds I think
• Weather after syncing is for Hamburg in Germany, to set it to your location, you need to recompile