NodeMCU Lesson 2—Hello World!

Buy from US	Buy from UK	Buy from DE	Buy from IT	Buy from FR	Buy from ES	ここでご購入を！

• Preparation
• Code

After completed above oprations, try to upload the first sketch to the NodeMCU.

Preparation

• NodeMCU x1
• USB Cable x 1
• PC x1

Code:

Connect your NodeMCU to the PC and put below code to your Arduino IDE (you can download the sketch file from https://osoyoo.com/download/code/nodemcu-lesson2.zip).

void setup()
{
Serial.begin(115200);//Set the baudrate to 115200,same as the software settings
}
void loop()
{
Serial.println("Hello World!");//Print character string“Hello World！”on the serial
delay(5000);// Delay 5 second
}

Choose correct  board to NodeMCU 1.0 and select correct port as per lesson 1 instruction.

After upload the sketch code, click Serial Monitor button, you will see the running result as below:

You will see the serial monitor output every 5 second.

Note: Make sure the baud rate is same as your sketch setting.