esp32 30 pin vs 38 pin

30 pin vs 38 pins? Hello, I am very new to esp32 and electronics in general. I am trying to buy a board from Amazon, and they offer 30 pins and 38 pins versions. What are the differences between these two boards? I looked at pinouts online but can't figure out what is additional in the 38 pins version. Thank you! Sort by: ProBonoDevilAdvocate Le brochage est different et il y a 38 pins au lieu de 30 pins sur celles que j'avais! aliexpress.com 4.56AU $ |Module D'antenne Wifi Sans Fil Bluetooth, Carte De Développement... The ESP32 chip comes with 48 pins with multiple functions. Not all pins are exposed in all ESP32 development boards, and some pins cannot be used. There are many questions on how to use the ESP32 GPIOs. What pins should you use? What pins should you avoid using in your projects? ESP-WROOM-32 38 PIN Development Board PINOUT. If you’re using an ESP32 30 pin Development board, you can use the following GPIO diagram as a reference. ESP32 30 pin Development board pinout diagram GPIO’s pins. On the bottom of this blog, you can download the PDF with the ESP32 – PinOut! In this tutorial, we will learn about the pinout information of ESP32. The 30-pin ESP32 Development Board will be used to demonstrate the ESP32 Pinout. We will also learn about some important peripherals of ESP32 Microcontroller and their associated pins, what GPIO pins can be used in your project. Hi, Have used the ESP32 38 pin boards on some of our previous and currently still running projects but notice that many of the far east sellers are now marketing the 30 pin boards, seems they are virutually identical apart from loosing the 8 pins used by the Integrated SPI Flash which are usually flagged as not usable. I went on AliExpress to buy an ESP32 module, I thought it was easy enough but I found a lot of different boards and nobody specifying the difference between each of them. The most common one are: ESP32 30 pins ESP32 38 pins ESP32 WROOM-32D ESP32 WROOM-32U NodeMCU ESP32S ESP32 CH9102X Could you please help me out? Instead, as necessary, use male-female Dupont jumper wires to connect individual pins from the ESP32 board to a breadboard (my less-than-desirable approach). 3. This board works very well with Arduino IDE (1.8.16). 4. Yes, must hold "BOOT" button while uploading a program to the 38-pin ESP32 board. I'm trying to use the most "common" ESP32 dev board I can. Pinouts/dimensions: One of the common boards I found appears to be based on the Ai-thinker.. 38 pins and the distance between pin rows is 22.86mm (0.9 inches). There appear to be 36 and 30 pin variants of this as well. In contrast the official DevkitC V4 dimensions have a pin row pitch ... In the ESP32 pinout, if you count the pins on an ESP-WROOM-32 bar module, you will see that it has a total of 38 pins. Among these pins, including power, GND, reset, NC pins, etc., only 33 are GPIO pins. However, out of these 33 GPIO pins, only 27 are usable GPIO pins. Not all GPIO pins will be accessible in all ESP32 development boards. Hi, Was looking at the ESP32 boards , seems there are a couple of variants available locally using the WROOM based ESP32 38 pin DevKitC and the 30 pin DoIt http://www ... The following figure shows the labeled ESP32 Pinout diagram: Pinout of ESP32-WROOM-32. ESP32-WROOM-32 is a breakout board of ESP32 and consists of 38 pins in total. Here's the pinout of ESP-WROOM-32 board: Pinout of ESP32-DevkitC. ESP32-DevKitC is a development board based on the ESP32 microcontroller and it has 36 pins in total. What you are looking at is a dev board that uses an ESP32 module. These dev boards come from different manufacturers and their pinouts differ. They are used for prototyping and it's generally assumed that you will use only the ESP32 module for your final product and that you don't mix and match different dev kits as that requires changing wiring and/or pin assignment in your code.