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 dev game with the ultimate ESP32-S3 display board!

VIVID VISUALS - Experience crisp, colorful graphics on the ultra-responsive 1.9-inch ST7789 display—your code’s best showcase.
GENEROUS MEMORY - 16MB Flash and 8MB PSRAM ensure your complex applications run smoothly without a hitch.
POWERHOUSE PERFORMANCE - Harness the blazing fast dual-core ESP32-S3 for seamless multitasking and next-level projects.
COMMUNITY DRIVEN INNOVATION - Backed by an active GitHub repository and responsive support, you’re never coding alone.
CUSTOMIZABLE READY TO BUILD - Unsoldered pins give you full control to tailor your setup—perfect for makers who demand flexibility.

The LILYGO T-Display-S3 is a compact, high-performance development board featuring a dual-core ESP32-S3 LX7 processor, 16MB Flash, 8MB PSRAM, and a vibrant 1.9-inch ST7789 LCD. Designed for professional makers and developers, it offers unsoldered pins for customization and is supported by an active GitHub community, making it ideal for cutting-edge IoT and embedded 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

LILYGOT-Display-S3 ESP32-S3 1.9 inch ST7789 LCD Display TTGO Development Board Unsoldered Pin Version

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