ESP8266 - Hello World
Hardware Preparation
| 1 | × | ESP8266 NodeMCU | |
| 1 | × | Micro USB Cable | |
| 1 | × | (Optional) 5V Power Adapter for ESP8266 | |
| 1 | × | (Optional) Screw Terminal Expansion Board for ESP8266 |
Or you can buy the following sensor kits:
| 1 | × | DIYables Sensor Kit (30 sensors/displays) | |
| 1 | × | DIYables Sensor Kit (18 sensors/displays) |
Disclosure: Some of the links provided in this section are Amazon affiliate links. We may receive a commission for any purchases made through these links at no additional cost to you.
Additionally, some of these links are for products from our own brand, DIYables.
Additionally, some of these links are for products from our own brand, DIYables.
Detailed Instructions
To get started with ESP8266 on Arduino IDE, follow these steps:
- Check out the how to setup environment for ESP8266 on Arduino IDE tutorial if this is your first time using ESP8266.
- Wire the components as shown in the diagram.
- Connect the ESP8266 board to your computer using a USB cable.
- Open Arduino IDE on your computer.
- Choose the correct ESP8266 board, such as (e.g. NodeMCU 1.0 (ESP-12E Module)), and its respective COM port.
- Choose the serial port associated with ESP8266 (the number may vary).
- Copy the above code and open with Arduino IDE
void setup() {
// put your setup code here, to run once:
Serial.begin(9600);
}
void loop() {
// put your main code here, to run repeatedly:
Serial.println("Hello World!");
Serial.println("I am ESP8266!");
delay(1000);
}
- Click the Upload button on the Arduino IDE to compile and upload the code to the ESP8266.
- Click on the Serial Monitor icon to open it.
- View the outcome in the Serial Monitor.
COM6
Hello World!
I am ESP8266!
Hello World!
I am ESP8266!
Hello World!
I am ESP8266!
Hello World!
I am ESP8266!
Autoscroll
Clear output
9600 baud
Newline
Modifying ESP8266 Code
- Replace “Hello World!” with a different text, such as “ESP8266 Get Started”.
- Then, upload the code to ESP8266.
- Finally, view the result on the Serial Monitor.
COM6
ESP8266 Get Started
Autoscroll
Clear output
9600 baud
Newline