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jayelen 12/03/2021
All preliminary tests successful. I installed the built environment on a Windows 10 PC, then compiled and loaded the program LVGL/lvgl_button as suggested by the paper manual. This programs displays 2 touch buttons and reports the events to the serial console via USB. Note : This is a T-Watch 2020 V1, you have to update this info in config.h for every example program. Note : This program tests only one function, it does not enable the power management so you cannot switch the watch off. In order to regain control over the battery, I compiled and loaded a more complete demo LVGL/SimpleWatch. This one enables the power button and the battery status widget. It also allows to test the WiFi connection and the NTP sync (network time) over WiFi. Then the watch displays time accurately, but in the China timezone (see picture)! This is hardcoded, but easy to change (#define RTC_TIME_ZONE in gui.cpp). The next step is to get rid of the Arduino IDE, which is not efficient to manage large software projects like this one. But I recognize that the Arduino kit is very comfortable for a quick easy start.
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