D32 Pro, A wifi&bluetooth board based ESP32-WROVER
https://www.wemos.cc/en/latest/d32/d32_pro.html
ePaper 2.13 Shield, 2.13“ inch 250×122
https://wiki.wemos.cc/products:d1_mini_shields:epd_2.13_shield
Lithium Ion Polymer Battery - 3.7v 500mAh
https://www.adafruit.com/product/1578
- https://github.com/wemos/LOLIN_EPD_Library
- https://github.com/G6EJD/ESP32-e-Paper-Weather-Display
- https://github.com/G6EJD/LiPo_Battery_Capacity_Estimator
- https://randomnerdtutorials.com/esp32-timer-wake-up-deep-sleep/
- https://randomnerdtutorials.com/esp32-deep-sleep-arduino-ide-wake-up-sources/
- https://docs.espressif.com/projects/esp-idf/en/latest/api-reference/system/sleep_modes.html