Wi-Fi modules (wireless fidelity) also known as WLAN modules (wireless local area network) are electronic components used in many products to achieve a wireless connection to the internet.

How do I connect my WIFI module with Arduino?

Follow these steps:

connect the red wire to VIN(3.3V) to the +3.3V power from the microcontroller.

connect the black wire to the ground.

connect the green wire to the TX of the Wi-fi module and microcontroller.

connect the yellow write to the RX of the wi-fi module and microcontroller.

Features:

1. Mini wi-fi device.
2. Easy to connect with compatible device.
3. Easy to use.
4. PCB color: Blue.
5. Best quality product.
6. Non brand, new product.

Specification:

1. Working voltage: 4.5~5.5V (On-board 3.3V LDO Regulator)
2. Working current: 0-240mA
3. Interface logic voltage: 3.3V / 5V compatible(On-board level shift circuit)
4. On board pins: 4
5. Weight: 0.005G.