Does this board have esp32 chip included on the dev board or is this meant to sit on top of an esp32 dev board like a wroom or similar?

This development board already contains esp32 chip, you can refer to the detailed picture for the location of the chip

Do you sell a replacement lcd screen? I didn't realize how fragile they are and I cracked mine.

Dear customer, we have LCD screens sold separately. You can replace them. Please contact the customer service team for details jialing@lilygo.cc Thank you

This is not ESP32-S3, ESP32-S3 is amazon.com/dp/B0B7X5RVTH?ref=myi_title_dp

How do the mcus communicate between each other? is there example using i2c or spi or can? no point in buying two mcus and use only one

The MCUs would communicate with each other via WiFi or Bluetooth. I2C, SPI and can are used to communicate with peripherals such as sensors or displays. One could have devices with temperature/humidity sensors at different places in your environment using the on-board display to show the temperature at that location and have the device send the values to a central location periodically.

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🚀 Elevate your IoT game with the ultimate ESP32-S3 dev board!

MASSIVE MEMORY - 16MB Flash and 8MB PSRAM ensure your complex projects run smoothly without a hitch.
VIBRANT VISUALS - 1.9-inch ST7789 LCD display delivers crisp, colorful feedback to elevate your user interface experience.
PLUG PLAY READY - Pre-soldered pin headers mean you can jump straight into development—no tedious setup required.
INSTANT CONNECTIVITY - Built-in WiFi 802.11 and Bluetooth 5.0 + BT mesh keep your device effortlessly connected to the latest networks.
POWERHOUSE PERFORMANCE - Harness the blazing speed of the ESP32-S3 dual-core LX7 microprocessor for seamless multitasking and rapid prototyping.

The LILYGO T-Display-S3 is a cutting-edge development board featuring a powerful ESP32-S3 dual-core LX7 microprocessor, 16MB Flash, 8MB PSRAM, and integrated WiFi 802.11 plus Bluetooth 5.0 connectivity. Its 1.9-inch ST7789 LCD display and pre-soldered pin headers make it an ideal choice for fast, professional-grade prototyping and IoT projects.

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Standing screen display size	1.9 Inches
Processor	others
Wireless Type	Bluetooth
Brand	LILYGO
Series	T-Display-S3
Item model number	‎2.44 x 1.02 x 0.39
Operating System	Micropython
Item Weight	1.06 ounces
Product Dimensions	2.44 x 1.02 x 0.39 inches
Item Dimensions LxWxH	2.44 x 1.02 x 0.39 inches
Processor Brand	Espressif Systems
Number of Processors	2
Computer Memory Type	SIMM
Hard Drive Interface	USB
Manufacturer	LILYGO
Language	English
ASIN	B09J112YR7
Date First Available	October 8, 2021

LILYGO T-Display-S3 ESP32-S3 1.9 inch ST7789 LCD Display TTGO Development Board Soldered pin Header Version

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