ESP32-DevKitC V4 Getting Started Guide This guide shows how to start using the ESP32-DevKitC V4 development board. For description of other versions of ESP32-DevKitC check ESP32 Hardware Reference. What You Need ESP32-DevKitC V4 board USB A / micro USB B cable Computer running Windows, Linux, or macOS You can skip the introduction sections and go directly to Section Start Application Development. Overview ESP32-DevKitC V4 is a small-sized ESP32-based development board produced by Espres-sif. Most of the I/O pins are broken out to the pin headers on both sides for easy interfacing. Developers can either connect peripherals with jumper wires or mount ESP32-DevKitC V4 on a breadboard. To cover a wide range of user requirements, the following versions of ESP32-DevKitC V4 are available: different ESP32 modules ESP32-WROOM-32 ESP32-WROOM-32D ESP32-WROOM-32U ESP32-SOLO-1 ESP32-WROVER ESP32-WROVER-B ESP32-WROVER-I ESP32-WROVER-B (IPEX) male or female pin headers. For details please refer to Espre-ssif Product Ordering Information. Functional Description The following figure and the table below describe the key components, interfaces and controls of the ESP32-DevKitC V4 board. About ESP32 Breakout Board& 65306;  Wide Compatibility: The breakout board is only fit for 38PIN narrow version ESP32 without mounting holes.Notice:Don't fit with the ESP-WROOM-32 DevKit V1 version.Please confirm your esp32 board pins width is coincide with the pin width of the breakout board  30Pins ref asin: B08D5ZD528; 38pins ref asin: B09DPH1KXF and B09DPGMZR9 .  IMPORTANT: ESP32 Breakout Board GPIO 1 into 2 only can Compatible with 38 Pins ESP32S ESP32 ,that is to say just for ref asin: B09DPH1KXF and B09DPGMZR9  This module is safe, reliable, and scalable to a variety of applications. The expansion board is design with double-layer that One pin is wired on both sides. Stable and highly reliable.Great contact and stable signal transmission for your esp32 board  AITRIP breakout board can expand one GPIO pin of ESP32 development board to two, which is very nice for you to reuse all pins , it is a good tool for your smart home projects. Nice breadboard alternative  :The ESP32 Breakout Board can expand one GPIO pin of esp32 development board to two.Perfect for users to reuse all pins in smart home DIY projects.Excellent breakout board Product Description        Specifications:    Size: 7.8 * 6.3 * 1cm   PCB material: high quality FR-4 material   PCB layers: 2 layers   PCB thickness: 1.6mm   Pads: tin plated    Note: Just suitable for  38 Pins ESP32 development board .Our  Reference  Asin :  B09DPH1KXF and  B09DPGMZR9 ,not suitable for others versions .