ESP8266 NodeMCU V1 compatible Development Board

This small microcontroller is very powerful and also has a WLAN radio module. The module is compatible with the Arduino IDE and can be programmed right away. With the ESP8266, you can easily connect your projects to the internet. The board is often used for IoT (Internet of Things) applications or simply internet of things. For example, you can easily connect your data logger to the internet and log the data in a cloud. The NodeMcu has a micro-USB port for programming and power supply. Since the ESP8266 is a pure 3.3V controller, make sure to operate all inputs and outputs only with 3.3V! If you still want to connect or control something with 5V, you'll need to use a Logic Level Converter that you can also find in our shop.

This board can be stuck on a half-size breadboard and there is still enough space on both sides to stick Dupont cables. Compared to the ESP8266 NodeMCU V3, the V1 version is smaller and has the better USB-UART driver chip installed.

Installation of the ESP8266 in the Arduino IDE

First you need to install this board under the board manager in the Arduino IDE. You can find the board under the name "esp8266". If you can't find the board, you need to add http://arduino.esp8266.com/stable/package_esp8266com_index.json under File=>Preferences=>Additional Boards Manager URLs. Then under Tools=>Boards=>Boards Manager you can search and install the ESP8266. Once you have done this, you can find various ESP8266 boards under the boards (NodeMCU V1).

To load programs, plug the NodeMCU into your PC. You then have to press both buttons on the board (RST and FLASH). First release RST and then FLASH. Now you should be able to select the COM port in the Arduino IDE and copy the program to the controller.

When programming with Arduino IDE, you need to be aware that you address the pins with two different variants.

Variant 1: Using the labeled name on the board:

Let's take output D1 as an example. Here you can switch the output using the command digitalWrite(D1, HIGHT).

Variant 2: Using the GPIO number:

Here you control output D1 via the GPIO number. In our example, D1 is GPIO05. So using the command digitalWrite(5, HIGHT).

If you have any questions or problems with addressing or suggestions for the product description, just send us an email or use the review function. We will be happy to help you.