Ep. 2: T-Deck Schematic, TFT Touch Display, Battery Voltage ADC

In Episode 2 we evaluate the LILYGO T-Deck Schematic and its components. Then we use the TFT_eSPI library to drive the LED display, then we create code to access the Touch function of the display. Also we check out how to use the ESP32 ADC to check the battery voltage.

To find the other episodes (they will be added over time) see the T-Deck playlist:    • T-Deck  
or
   / @tech-relief  
for other playlists.

Software will be developed with Visual Studio Code and Pioarduino (A PlatformIO fork) see:    • Moving to PIOARDUINO   for more information.

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Links:
LILYGO® T-Deck ESP32-S3 2.8 inch LCD/Keyboard Development Board:
https://www.aliexpress.us/item/325680...
https://lilygo.cc/products/t-deck?srs...
LILYGO Github site: https://github.com/Xinyuan-LilyGO/T-Deck
T-DECK Case: https://www.thingiverse.com/thing:628...

T-Deck Datasheets:
MAX98357 Class D Audio Amp: https://www.analog.com/media/en/techn...
GT911 Touch Controller: https://www.fortec-integrated.de/file...
AN48841B Hall Sensor: https://www.mouser.com/datasheet/2/31...
MSM381A Mems Microphone: https://www.denovocn.com/sites/defaul...
ES7210 Audio ADC: http://www.everest-semi.com/pdf/ES721...

Software Downloads:
https://www.paay.us/Downloads/

Chapters:
0:00 Intro
1:41 T-Deck Schematic
11:58 Trackball Hall Sensor
12:52 Mems Microphones
13:18 ES7210 Audio ADC
14:41 MAX98357A Audio Amp
16:12 Code review for Display and Battery voltage ADC
24:41 GT911 Touch Controller
37:42 Compile, upload and test