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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Description

🚀 Power your next-gen projects with the T-Display-S3 – where speed meets style!

16 MB FLASH 8 MB PSRAM - Ample memory combo for seamless coding and execution
VIBRANT 1 9 INCH ST 7789 LCD - Crystal-clear visuals that make your projects pop
BLUETOOTH USB CONNECTIVITY - Stay connected and powered with versatile interfaces
COMPACT LIGHTWEIGHT DESIGN - Portable 30g board perfect for on-the-go innovation
DUAL CORE ESP 32 S 3 PROCESSOR - Blazing 1.9 GHz speed to handle complex tasks effortlessly

The LILYGO T-Display-S3 is a compact development board featuring a vibrant 1.9-inch ST7789 LCD, a dual-core 1.9 GHz ESP32-S3 microprocessor, 16MB flash memory, and 8MB PSRAM. Equipped with Bluetooth and USB connectivity, it supports versatile applications across PCs, smartphones, and microcontrollers, making it an ideal choice for cutting-edge IoT and embedded projects.

Specifications

Brand	LILYGO
Manufacturer	LILYGO
Model	‎2.44 x 1.02 x 0.39
Model Name	T-Display-S3
Product Dimensions	6.2 x 2.59 x 0.99 cm; 30 g
Item model number	‎2.44 x 1.02 x 0.39
Memory Storage Capacity	16 MB
Ram Memory Technology	PSRAM
Computer Memory Type	SIMM
Operating System	Micropython
Processor Brand	Xilinzhou
Processor Speed	1.9 GHz
Processor Type	Others
Processor Count	2
Hardware Interface	Bluetooth
Compatible Devices	Personal Computer, Smartphone, Microcontroller (Arduino, Raspberry Pi models)
Mounting Hardware	USB cable
Number of items	1
Standing screen display size	1.9 Inches
Batteries Included	No
Batteries Required	No
Wireless Type	Bluetooth
Total USB ports	1
Connector Type	Bluetooth, Wi-Fi
Does it contain liquid?	No
Manufacturer	LILYGO
Item Weight	30 g

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