LilyGo T-Display-S3
Also known as: T-Display-S3 · TTGO T-Display S3
Bright 1.9" wide IPS in a slim board with native USB-S3 and generous PSRAM/flash; popular for tickers, gauges and handheld UIs.
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At a glance
⚑ flag an error| SoC | ESP32-S3 |
|---|---|
| Vendor | LilyGo |
| Type | Display board |
| Memory | 16 MB flash · 8 MB PSRAM |
| Display | 1.9" 320x170 IPS (ST7789, 8080 bus), optional capacitive (CST816, touch SKU) touch |
| Connectivity | Wi-Fi, Bluetooth 5 |
| USB | USB-C (native USB) |
| Battery | Yes (onboard LiPo charging) |
| Free GPIO | ~16 (after display/touch/SD) |
| Onboard extras | battery |
| Typical price | $15-23 (street, varies) |
Compare all ESP32 display boards in one table →
Good for
Works with
Firmware and UI-stack support, with a known-good starting point where one exists. "Community" means an unofficial but working config or port.
- ESPHome Community support
- LVGL / Arduino Community support config / port →
- Bruce / Marauder Official support config / port →
Gotchas to know
- The bright IPS plus the S3 draws real current, so size the supply/battery.
- Pick the touch vs non-touch SKU deliberately.
- On battery power GPIO15 must be driven high or the backlight stays off.
- The 8-bit parallel (i80) bus is fast but leaves only ~16 free GPIO.
- The older ESP32 'T-Display' (1.14") is a different board.
Variants
Touch and non-touch versions; sometimes sold soldered vs unsoldered headers.
The ESP32-S3 inside
This board is built on the ESP32-S3 . See the SoC page for the full peripheral, GPIO and security details.
Bare modules on the same SoC:
Adding sensors?
Presence radars, climate, CO2, energy — the sensor comparison table covers what people actually wire to these boards, with ESPHome support status and clone-risk ratings per part. Radars want a hardware UART; I2C sensors chain on two pins.
Resources
Community guides usually go deeper than this page: pinout diagrams, wiring, library setup and copy-paste example code from people who build with these boards daily.