Ok, how do you get it to be recognized by windows

Be sure you're connecting with a USB data cable and not charging cable. Press AND HOLD the button labelled BOOT or 0 (ZERO), then press the RESET button, then release the BOOT button, and it should appear as a serial device. This is common to the ESP32-S2, it's not just this board.

What is the board definition that you're supposed to use for this board in the arduino ide?

I use "ESP32S2 Native USB" from the latest (1.8) version of Arduino and the latest (2.0.4) ESP32 board manager. One must press RESET while holding down 0 (ZERO) to connect before upload and then must manually press reset after uploading. You must change the serial port selection between programming and using the serial console because the names change.

Are they designed for wifi? when i activate it on my the chip freezes. on other esp32 s2 the code work without problem

They are designed for wifi. 2.4ghz u have to make sure u have the right driver for the USB port. If ur using windows open devices in setting and see if your USB port recognizes the board

Is there a datasheet anywhere for this? The HiLetgo doesn't seem to have one.

Just do a search for ESP32-S2-MINI-1 ESP32-S2-MINI-1U Datasheet

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HiLetgo 3pcs ESP32 S2 Mini WiFi Board Based ESP32-S2FN4R2 ESP32-S2 4MB Flash Type-C Connect

Product ID: 443760923

Details

Brand
HiLetgo
Model Name
ESP32 S2 Mini
Ram Memory Installed Size
4 MB
Memory Storage Capacity
4 MB
CPU Model
MediaTek

⚡27 digital I/O pins with PWM & interrupts

📡802.11a/b/g/n/ac WiFi compatible

🔌Type-C USB for fast, universal connectivity

Description

🚀 Mini Board, Mega Potential: Power Your Next-Gen IoT & Robotics Projects!

COMPACT POWERHOUSE - 4MB DDR3 RAM and ESP32-S2FN4R2 processor deliver efficient multitasking in a mini form factor.
ROBUST I O SUPPORT - 27 digital pins supporting PWM, interrupts, ADC, DAC, I2C, SPI, UART for complex projects.
TRIPLE PACK ADVANTAGE - Includes 3 boards to scale your IoT, robotics, or CNC projects without delay.
VERSATILE CONNECTIVITY - Type-C USB port ensures seamless plug-and-play with modern devices and shields.
MICRO PYTHON ARDUINO READY - Preloaded with MicroPython firmware and fully compatible with Arduino IDE for rapid prototyping.

The HiLetgo 3pcs ESP32 S2 Mini WiFi Boards feature the ESP32-S2FN4R2 processor with 4MB DDR3 RAM and Type-C USB connectivity. Each board offers 27 versatile digital I/O pins supporting PWM, ADC, DAC, I2C, SPI, UART, and USB OTG. Compatible with MicroPython and Arduino IDE, these compact boards are ideal for advanced IoT, robotics, and embedded system projects. Sold as a set of three, they provide scalable solutions for professional developers and educators alike.

Specifications

ASIN	B0B291LZ99
Best Sellers Rank	#3,502 in Single Board Computers (Computers & Accessories)
Brand	HiLetgo
Built-In Media	3 ESP32 S2 Mini WIFI Boards
Compatible Devices	LOLIN D1 mini shields
Connectivity Technology	I2C, USB, Wi-Fi
Customer Reviews	3.9 out of 5 stars 114 Reviews
Included Components	3 ESP32 S2 Mini WIFI Boards
Manufacturer	HiLetgo
Memory Storage Capacity	4 MB
Mfr Part Number	3-01-1313
Model Name	ESP32 S2 Mini
Model Number	3-01-1313
Number of Items	3
Operating System	MicroPython
Processor Brand	Espressif
Processor Count	1
RAM Memory Installed	4 MB
RAM Memory Technology	DDR3
Ram Memory Installed Size	4 MB
Total Usb Ports	1
Unit Count	3 Count
Wireless Compability	802.11a/b/g/n/ac

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