Ameba Arduino: Retrieve Universal Time (UTC)

In this project, we connect Ameba to WiFi. Then send NTP (Network Time Protocol, RFC 1305) request to retrieve UTC.

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Description

In this example, we connect Ameba to WiFi. Then send NTP (Network Time Protocol, RFC 1305) request to NTP server using UDP. After receiving the NTP request, the NTP server replies current UTC (Coordinated Universal Time) packet. We will parse the UTC packet to show current UTC time.

Details

For more information:

If you need more technical documents and example code that work right out of box, check out the links below,
Ameba Facebook: https://bit.ly/AmebaFB
Ameba Official Website: https://bit.ly/AmebaOfficialWebsite
Ameba Forum: https://bit.ly/AmebaForum

Components

1 × RTL8722DM MINI

Build Instructions

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1

Code Edition

Open the example. “File” -> “Examples” -> “AmebaWiFi” -> “WiFiUdpNtpClient”
Modify the highlighted code section (ssid, password, keyindex) to connect to your WiFi network.
2

Upload and Execution

Compile the code and upload it to Ameba. After pressing the Reset button, Ameba connects to WiFi and sends NTP request packet to NTP server “129.6.15.28”. We parse the replied packet and show UTC time in serial monitor: