is there a pin out diagram for this board ?

On the board I received today, October 18, 2017, there are NO pin labels on the bottom of the board. In fact, there is no labeling at all, contrary to the product pictures above. The board has no pin labels on top, either. The NodeMCU documentation I have just found has a completely different set of pin assignments as compared to the pictured pin labels above.

I've downloaded every driver i can find and neither my pc nor my mac will recognize this thing. help?

One of the reviewers said it required CH210 instead of the usual CH340 or CP2102. Since this is an old question it may not help you, but I hope this helps someone down the road,

Are these Rev0 or Rev1 of the esp32 chip?

The chip revision is 1. I obtained this by running the code to retrieve it from the ESP32 module itself, so I know it's accurate. My delivery date was Jul 12, 2017.

set esp32 as web server, but lost connection after 1 minutes, maybe wifi sleep, is there any way not wifi sleep?

This ESP32 has dormant function, but only if you write a command in the software and enable it, the dormant function will be eabled. If like this, please remove this command. If you didn't write such a command, the disconnection may be due to weak wifi signal or the wifi has large interference.

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HiLetgo ESP-WROOM-32 ESP32 ESP-32S Development Board 2.4GHz Dual-Mode WiFi + Bluetooth Dual Cores Microcontroller Processor Integrated with Antenna RF AMP Filter AP STA for Arduino IDE

Product ID: 42753628

Details

Brand
HiLetgo
CPU Model
Tegra
CPU Speed
1 MHz
Connectivity Technology
Wi-Fi
Model Name
ESP-WROOM-32

⚡Ultra-Low Power Consumption

📶2.4GHz Dual-Mode WiFi + Bluetooth

🧠Dual-Core 1 MHz Processor

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Description

🚀 Power your next-gen projects with the ultimate dual-core WiFi + Bluetooth board!

ARDUINO IDE READY - Plug-and-play compatibility with Arduino IDE accelerates your development cycle.
FLEXIBLE NETWORK MODES - Supports AP, STA, and combined AP+STA modes for ultimate network control.
POWER SMART PERFORMANCE - Ultra-low power design keeps your innovations running longer and greener.
ROBUST DUAL CORE PROCESSING - Handle complex tasks smoothly with a reliable dual-core microcontroller.
SEAMLESS DUAL MODE CONNECTIVITY - Effortlessly switch between WiFi and Bluetooth for versatile IoT projects.

The HiLetgo ESP-WROOM-32 is a cutting-edge development board featuring a 2.4GHz dual-mode WiFi and Bluetooth microcontroller with dual cores running at 1 MHz. Designed for ultra-low power consumption and compatible with Arduino IDE, it supports multiple network modes (AP, STA, AP+STA) and runs on FreeRTOS, making it a reliable and scalable solution for diverse IoT and embedded applications.

Specifications

ASIN	B0718T232Z
Best Sellers Rank	#27 in Single Board Computers (Computers & Accessories)
Brand	HiLetgo
Built-In Media	1 * ESP32 Development Board
CPU Model	Tegra
Compatible Devices	Arduino Boards and Microcontrollers
Connectivity Technology	Wi-Fi
Customer Reviews	4.4 4.4 out of 5 stars (1,618)
Manufacturer	HiLetgo
Mfr Part Number	3-01-1287
Model Name	ESP-WROOM-32
Model Number	3-01-1287
Operating System	FreeRTOS
Processor Brand	Espressif
Processor Count	2
Processor Speed	1 MHz
RAM Memory Technology	LPDDR
Smart Home Compatibility	Not Smart Home Compatible
Total Usb Ports	1
Unit Count	1.0 Count
Wireless Compability	Bluetooth

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