![]() ![]() ![]() ![]() For example, D0 corresponds to GPIO16 and D1 corresponds to GPIO5. One important thing to notice about ESP8266 Node MCU is that the GPIO number doesn’t match the label on the board silkscreen. The ESP8266 Node MCU Pinout peripherals include: ![]() On the bottom of this blog, you can download the PDF! If you’re using an ESP8266-LoLin board, you can use the following GPIO diagram as a reference. If you’re just getting started with the ESP8266, we recommend reading our blog: Getting Started with the ESP8266.Īt the moment, there are a wide variety of development boards with the ESP8266 chip that differ in the number of accessible GPIO’s, size, form factor, etc… ESP8266 NodeMCU Pinout Note: not all GPIO’s are accessible in all development boards, but each specific GPIO works in the same way regardless of the development board you’re using. On the bottom of this blog you can download the PDF! Use this diagram if you’re using an ESP8266 bare chip in your projects. The following figure illustrates the ESP8266 12-E chip pinout. With this guide, you’ll learn how to properly use the ESP8266 GPIO’s and avoid hours of frustration by using the most suitable pins for your projects. All GPIO’s are exposed on all ESP8266 development boards, some GPIO’s are not recommended to use, and others have very specific functions. The Node MCU ESP8266 12-E chip comes with 30 GPIO pins. For those that starting with the Node MCU ESP modules, I have made some pinout diagrams, their functions and how to use them. ![]()
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