Wi-Fi Demo

Check your SD Card Version

The SD Card version is printed on the SD card's package.

This documentation is only valid for SD 2.2 . For demos other than SD2.2, refer to the new Getting Started page. To download and burn a new SD card image, see this page .

SD 2.2 Demos

The SD 2.2 SD card includes demos for the two supported modes: Station and SoftAP (Software enabled Access Point).

Hardware Requirements

To use this guide, the following components are needed:

• Raspberry Pi board
  • Versions supported: Pi2 model B V1.2 or Pi3 model B.

    Note: Pi models 3B+ and 4B are not supported by SD 2.2

• Raspberry Pi power supply
• WF200 devkit (BRD8022A)
• Silabs SD card
• Network cable

Software Requirements

Note: Please use Firefox or Chrome to download the following software because Internet Explorer is not supported.

The SD 2.2 Station and SoftAP demos are started via a ssh connection.

SSH Connection

To remotely access the Raspberry Pi from a Windows machine, some tools need to be installed:

• To enable ssh access with X11 support, download and install MobaXterm Home Edition (Installer edition) from https://mobaxterm.mobatek.net/
• To enable multicast name resolution (mDNS), download and install Apple Bonjour from https://support.apple.com/kb/DL999 (During installation, we recommend that you uncheck all options.)

With MobaXterm, create and open a ssh session to the Raspberry Pi with the following parameters:

• Host: silabs-pi-demo.local
• Username: pi
• Password: default_password

All the following commands will be entered in the newly open ssh console.

Station Demo

This demo configures the Raspberry Pi and WF200 to work as a Wi-Fi Station which can connect to an access point. To start it, run:

sudo wfx_demo_station

Note: Minimize MobaXterm window, then wait a few seconds for the Wi-Fi tool to appear.

This will launch a graphical tool named “wpa_gui” which supports the following actions:

1. Scan.
2. Select the desired Wi-Fi access point.
3. Enter credentials if need be, and then add.

Once connected, it is possible to perform some traffic:

ping silabs.com

Note: With keyboard, mouse, and screen attached to the Raspberry Pi, it is possible to launch a browser by clicking the “Silicon Labs Website” icon on the desktop.

SoftAP Demo

This demo configures the Raspberry Pi and WF200 to work as a Wi-Fi SoftAP which can accept stations. To start it, run:

sudo wfx_demo_ap

Then it is possible to connect to the Raspberry Pi using a Wi-Fi capable device and the following credentials:

• SSID: silabs-pi-demo
• Passphrase: default_password

On the device, use a browser to open http://silabs-pi-demo.wlan/

The host supports a Web server which exposes a user-accessible Web page.