LilyGo TTGO T-Display 1.14 Inch LCD ESP32
LilyGo TTGO T-Display 1.14 Inch LCD ESP32 is a development board based on the ESP32 microcontroller using XTENSA architecture.
This board features a maximum CPU frequency of 240 MHz and 4MB flash memory.
About LilyGo TTGO T-Display 1.14 Inch LCD ESP32
๐ The LilyGo TTGO T-Display 1.14 Inch LCD ESP32 is a compact development board featuring an ESP32 microcontroller with integrated WiFi and Bluetooth capabilities. It includes a 1.14-inch LCD driven by an ST7789 controller, offering a vibrant display for graphical applications. โก
๐ก With support for WiFi 802.11 b/g/n and Bluetooth 4.2, this board is ideal for IoT and embedded display projects. It also includes 4MB Flash and 520KB SRAM for versatile applications.
Technical Specifications
Complete technical specification details for LilyGo TTGO T-Display 1.14 Inch LCD ESP32
Quick Setup
Copy-paste configs for LilyGo TTGO T-Display 1.14 Inch LCD ESP32 - auto‑generated from this board's exact hardware specs.
In Arduino IDE 2 select Lilygo Ttgo T Display 1 14 from the esp32 by Espressif package. In PlatformIO use board = esp32dev. ESP32 · 240 MHz · 4MB · QIO.
In Arduino IDE 2, open Boards Manager, search "esp32" by Espressif and install it. Then go to Tools โ Board and select "Lilygo Ttgo T Display 1 14" for the LilyGo TTGO T-Display 1.14 Inch LCD ESP32.
LilyGo TTGO T-Display 1.14 Inch LCD ESP32 Pinout Diagram
Complete pin reference for LilyGo TTGO T-Display 1.14 Inch LCD ESP32
Safe Pins to Use
These pins are safe for general GPIO usage without boot or system conflicts.
Pins to Avoid or Use with Caution
Reserved for critical functions. Misuse may cause boot failures, programming issues, or system conflicts.
| Pin | Label | Why Avoid | Type |
|---|---|---|---|
| IO1 | U0TXD (GPIO1) | Connected to on-board USB-UART for uploading and logs; drives serial output at boot, so using as GPIO can disrupt programming or console. | ๐ USB |
| IO2 | GPIO2 | If driven HIGH on reset (while IO0 is LOW), selects an unsupported SDIO boot mode, causing boot failure. | ๐ ๏ธ Strapping |
| IO3 | U0RXD (GPIO3) | Used for receiving data from USB-UART (programming); also pulled HIGH at boot for console communication, so using as GPIO can disrupt uploads. | ๐ USB |
| IO16 | GPIO16 | Connected to internal PSRAM on PSRAM-enabled modules; not usable as GPIO on those modules. | โก Flash |
| IO17 | GPIO17 | Connected to internal PSRAM on PSRAM-enabled modules; not usable as GPIO on those modules. | โก Flash |
Useful Links
Datasheets and resources for LilyGo TTGO T-Display 1.14 Inch LCD ESP32
LilyGo TTGO T-Display 1.14 Inch LCD ESP32 Custom Pin Mapping
Pin configuration and GPIO mapping for LilyGo TTGO T-Display 1.14 Inch LCD ESP32
| Pin | Function | ESP Pin | I/O Type | Description |
|---|---|---|---|---|
| 1 | 3V3 | 3.3V | POWER OUTPUT | 3.3V power output |
| 2 | GND | GND | POWER GROUND | Ground connection |
| 3 | 5V | 5V | POWER INPUT | 5V power input |
| 4 | IO1 | GPIO1 | BIDIRECTIONAL | GPIO, ADC, I2C |
| 5 | IO2 | GPIO2 | BIDIRECTIONAL | GPIO, ADC |
| 6 | IO3 | GPIO3 | BIDIRECTIONAL | GPIO, ADC |
| 7 | IO16 | SPI_CS | BIDIRECTIONAL | GPIO, SPI Chip Select |
| 8 | IO17 | SPI_D | BIDIRECTIONAL | GPIO, SPI Data |
| 9 | IO18 | SPI_CLK | BIDIRECTIONAL | GPIO, SPI Clock |
| 10 | IO19 | SPI_Q | BIDIRECTIONAL | GPIO, SPI Q |
| 11 | IO21 | LCD_DC | OUTPUT | GPIO, LCD Data/Command |
| 12 | IO22 | LCD_RST | OUTPUT | GPIO, LCD Reset |
| 13 | IO23 | LCD_BL | OUTPUT | GPIO, LCD Backlight |
Default Tools & Configuration
Build and upload settings for LilyGo TTGO T-Display 1.14 Inch LCD ESP32
| Setting | Value |
|---|---|
| Bootloader tool | esptool_py |
| Uploader tool | esptool_py |
| Network uploader tool | esp_ota |
| Bootloader address | 0x1000 |
| Flash mode | qio |
| Boot mode | qio |
| Maximum upload size | 1280 KB (1310720 bytes) |
| Maximum data size | 320 KB (327680 bytes) |
The LilyGo TTGO T-Display 1.14 Inch LCD ESP32 uses esptool_py for uploads , esp_ota for OTA updates, and esptool_py bootloader at 0x1000.
Flash mode: qio | Boot mode: qio
Max sketch size: 1280 KB | Max data size: 320 KB
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