NodeMCU is an open source IoT platform. It is programmed by using the Lua scripting language.The platform is based on eLua open source projects. The platform uses a lot of open source projects, such as lua-cjson, spiffs. This ESP32 NodeMcu contains firmware that can run on ESP32 Wi-Fi SoC chips, and hardware based on ESP-32S modules.It is the WiFi + Bluetooth hardware that can access through WiFi and Bluetooth.
- Powerful operating hardware IO as arduino
micro USB port for power, programming and debugging
Using Nodejs similar syntax to write network applications
- Ultra-low cost WIFI module
- Dimension: 5.5 x 2.8 x 0.1cm
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Step 1: Pin Definition
Step 2: Pin Connection
In this tutorial, connect LED's anode to ESP32's p21 and LED's cathode to ESP32's GND
Step 3: Sample Source Code
Download this sample source code.
Step 4: Uploading
After completing the hardware connection, you have to upload the source code (download at previous page) into the ESP32 by using a micro USB. Before uploading the code, you have to install ESP32's driver into your Arduino IDE, you can check here.
Step 5: Results
As the result, the LED was blinking.