Ameba Arduino: [RTL8195AM] [RTL8710AF] Use Ameba as Server to control LED

Materials

  • Ameba x 1
  • Breadboard x 1
  • LED x 1
  • 1KΩ Resistor x 1

Procedure

In this example, we connect Ameba to WiFi and use Ameba as server, the user can control the LED on/off through a webpage.
First, connect Ameba with the LED.
In a LED, the longer pin is the positive pole, and the shorter pin is the negative pole. So we connect the shorter pin to GND (V=0), and connect the longer pin to D13. Additionally, to avoid the electric current exceeds the tolerance of the LED and causes damage, we connect a resistance on the positive pole.
 5-1
 
Then open “File” -> “Examples” -> “AmebaWiFi” -> “SimpleWebServerWiFi”
5-2
In the sample code, modify the highlighted snippet to corresponding information.

5-3

Upload the code, and press the reset button on Ameba. When the connection is established, you will see the message “To see this page in action, open a browser to http://xxx.xxx.xxx.xxx” in the arduino IDE, as shown in the figure:
 5-4
Next, open the browser of a computer or a cell phone under the same WiFi domain, enter the address in the message.
 
 5-5
In the webpage, you can turn on/off the LED.

Code Reference

Use WiFi.begin() to establish WiFi connection.
https://www.arduino.cc/en/Reference/WiFiBegin
To get the information of a WiFi connection:
Use WiFi.SSID() to get SSID of the current connected network.
https://www.arduino.cc/en/Reference/WiFiSSID
Use WiFi.RSSI() to get the signal strength of the connection.
https://www.arduino.cc/en/Reference/WiFiRSSI
Use WiFi.localIP() to get the IP address of Ameba.
https://www.arduino.cc/en/Reference/WiFiLocalIP
Use WiFiServer server() to create a server that listens on the specified port.
https://www.arduino.cc/en/Reference/WiFiServer
Use server.begin() to tell the server to begin listening for incoming connections.
https://www.arduino.cc/en/Reference/WiFiServerBegin
Use server.available() to get a client that is connected to the server and has data available for reading.
https://www.arduino.cc/en/Reference/WiFiServerAvailable
Use client.connected to get whether or not the client is connected.
https://www.arduino.cc/en/Reference/WiFiClientConnected
Use client.println() to print data followed by a carriage return and newline.
https://www.arduino.cc/en/Reference/WiFiClientPrintln
Use client.print() to print data to the server that a client is connected to.
https://www.arduino.cc/en/Reference/WiFiClientPrint
Use client.available() to return the number of bytes available for reading.
https://www.arduino.cc/en/Reference/WiFiClientAvailable
Use client.read() to read the next byte received from the server the client is connected to.
https://www.arduino.cc/en/Reference/WiFiClientRead
Use client.stop() to disconnect from the server the client is connected to.
https://www.arduino.cc/en/Reference/WiFIClientStop
Copyrights ©瑞晟微电子(苏州)有限公司 2021. All rights reserved.
Please confirm that QQ communication software is installed