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Kitchen sink project for T-Watch 2020 and ESP-IDF

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Lilygo T-Watch 2020 Kitchen Sink

This repository aims to document and show how to use the different peripherals. For graphical demo check also tuupola/esp_effects. Compile the kitchen sink with the following:

$ git clone git@github.com:tuupola/esp_twatch2020.git --recursive
$ cd esp_twatch2020
$ cp sdkconfig.twatch2020 sdkconfig
$ make -j8 flash

AXP202

Purpose
DC-DC1 PWM charger.
DC-DC2 Not used 0.7V to 2.275V, 1.6A.
DC-DC3 ESP32, 0.7V to 3.5V, 1.2A. Always enable!
LDO1 Always on 30mA.
LDO2 1) Display backlight 1.8V to 3.3V, 200mA.
LDO3 2) Audio power 0.7V to 3.5V, 200mA.
LDO4 Not used 1.8V to 3.3V, 200mA.
LDO5 Not used 1.8V to 3.3V, 50mA.
  1. Just turning LDO2 on is not enough. Must also enable PWM.
  2. Watch stops booting when LDO3 is enabled?

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Kitchen sink project for T-Watch 2020 and ESP-IDF

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