Learn how to check the wireless firmware version for boards using the WiFiNINA library (NINA Wi-Fi modules).

Boards that use the WiFiNINA library:

• Arduino MKR Vidor 4000
• Arduino MKR WiFi 1010
• Arduino Nano 33 IoT
• Arduino Nano RP2040 Connect
• Arduino UNO WiFi Rev2

Upload the CheckFirmwareVersion sketch

We can check the current firmware version by uploading a sketch to the board that will report the version via the serial monitor.

1. If you haven’t already done so, you need to install the associated library.

   Click the Library Manager button (or select Tools > Manage Libraries), and search for “WiFiNINA”:

   

2. Open File > Examples > WiFiNINA > Tools > CheckFirmwareVersion

3. Connect the board to your computer, and select it with the board selector (or the Tools > Port menu).

4. Click Upload to upload the sketch to the board.

5. Click the Serial Monitor button in the top-right corner (or select Tools > Serial Monitor).

6. Observe the output:

   

Interpreting the output

If the latest firmware is installed the output will include this line:

Check result: PASSED

But if a newer firmware version is available the output may look something like this:

WiFiNINA firmware check.

Firmware version installed: 1.4.7
Latest firmware version available : 1.4.8

Check result: NOT PASSED
 - The firmware version on the module does not match the
   version required by the library, you may experience
   issues or failures.

Update the firmware

Most boards can be updated both by Arduino IDE and in Arduino Cloud:

• Use the Firmware Updater in Arduino IDE
• Update connectivity module firmware with Arduino Cloud