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it has arrived in UK, I'm very pleased with this gadget, good quality and sufficient resolution, after some googling around I've found IPS Gallery Upload Tool!!!! it easy to scale picture to required resolution( 24bit 135x240 BMP) and then upload it via: https://wiki.eleksmaker.com/doku.php?id=ips
This product is great and perfectly crafted. Perhaps it would be good if the manufacturer would take full advantage of the ESP chip's capabilities and modify the firmware so that the clock could be configured via the web and also synchronized via NTP servers. You can find some attempt along these lines at this site: https://github.com/SmittyHalibut/EleksTubeHAX There I also found the type of display that is used in this clock. It is an IPS 1.14 inch 8PIN SPI HD TFT LCD Display Screen ST7789 Drive IC 135*240. For example, here https://www.aliexpress.com/item/32564432870.html