WI-FI User Guide 1. Brief Introduction Main Chip ESP8266 Frequency 2.412GHz~2.484GHz Module Voltage 5V Working Current 50mA Peak Current 300mA Hardware Output UART Serial Port Default Baud Rate 9600Bd Working Mode STA + AP 2. Hardware Introduction Power Indicator 1 External Antenna Interface Link Indicator Power Indicator 2 Receiving Indicator 接收指示灯 Status Switch DIY Interface Indicators After the Wi-Fi module is connected the main board, the red power indicator 1 and 2 will be on.
yet). If it’s connected to a device and has successfully accomplished data transfer for one time, the link indicator will be solid on. Meanwhile, the blue receiving indicator will keep flashing when the module is receiving data. Status Switch By flipping the status switch, you can choose Work or PROG working mode. Work means normal working status (regular status) while PROG refers to programming. 3. How to Use 3.1 Configuration Setting 1) Connect your computer to the Wi-Fi hotspot.
In Serial Setup page, you can set the baud rate and port number. Baudrate: the serial baud rate for communicating with the main control board. Port: Set the port number. (It’s not recommended setting the port number as 333 since it’s the broadcast number). Diagram 3 In Join Setup page, you can select the network you want, then enter the name and its password. AP: Copy/enter the name of the network you want to connect to.
Choose “UDP” in Protocol at the to-right corner, and then Connect Enter 192.168.4.1 for RemoteIP; Enter the port number you set in Serial Setup page (Diagram 2) for Port In the meantime, write the following program in Arduino #include #include
#include #include MeWifi Wifi(PORT_4); void setup() { Serial.begin(9600); Wifi.begin(9600); Serial.println("Bluetooth Start!"); } void loop() { char inDat; char outDat; if(Wifi.available()) { char c = Wifi.read(); Serial.print(c); } if(Serial.available()) { outDat = Serial.read(); Wifi.write(outDat); } } Open the Arduino serial port to realize Wi-Fi passthrough, hence to receive and send data.
Set the proper serial port and then configure the network. Choose “TCP Client” in the Local host IP at the up-right corner; enter the assigned IP in Server IP; enter “333” as the Server Port. To realize receiving and sending data, click Open the serial port on the left side of USR-TCP232-test and the Connect on the right side. 4. FAQ The module will get slightly warm while working, it’s completely normal. 5.
