T-Dongle-S3 Example
This example shows how to use the espp::TDongleS3 hardware abstraction component
initialize the components on the LilyGo T-Dongle-S3.
It initializes the touch, display, and t-keyboard subsystems. It reads the touchpad state and each time you touch the screen it uses LVGL to draw a circle where you touch. If you press the home button on the display, it will clear the circles.
https://github.com/esp-cpp/espp/assets/213467/15f57640-d3bc-4a40-932c-d9309337301f
How to use example
Hardware Required
This example is designed to run on the LilyGo T-Dongle S3 dev board which has:
WiFi / BLE
uSD card (hidden in the USB A connector!)
RGB LED
Color TFT LCD (ST7735, 80x160 0.96” IPS LCD)
T-Dongle S3 Pin Configuration
LED Pin |
ESP32S3 IO Pin Number |
|---|---|
Data |
40 |
Clock |
39 |
LCD Pin |
ESP32S3 IO Pin Number |
|---|---|
CS |
4 |
SDA |
3 |
SCL |
5 |
DC |
2 |
Reset |
1 |
Backlight |
38 |
TF / uSD Card Pin |
ESP32S3 IO Pin Number |
|---|---|
D0 |
14 |
D1 |
17 |
D2 |
21 |
D3 |
18 |
CLK |
12 |
CMD |
16 |
Build and Flash
Build the project and flash it to the board, then run monitor tool to view serial output:
idf.py -p PORT flash monitor
(Replace PORT with the name of the serial port to use.)
(To exit the serial monitor, type Ctrl-].)
See the Getting Started Guide for full steps to configure and use ESP-IDF to build projects.