Herramienta de Configuración WiFi por QR

The WiFi config QR tool targets devices that join a network by scanning a provisioning QR code: on-site staff fill in the target SSID and password, the tool generates a signed config QR, and the device connects automatically after verification, with an optional admin password change.

Step 1: Generate

1. Open the tool (Technical Docs → Online Tools → WiFi Config QR Tool);

2. Enter the 16-character admin configuration password agreed with the device side (the default matches the factory convention — change it and sync to devices as needed);

3. Fill in the WiFi name and WiFi password; to also change the device admin password, set "Change password" to YES and enter a matching 16-character new password;

4. Click "Generate QR code" and scan it with the device; after signature verification the device provisions the network and applies the parameters (reboot=1 auto-restarts).

Payload Format

The payload consists of a protocol header + WiFi parameters + HMAC-MD5 signature:

___VBAR_CONFIG_V1.1.0___{ssid='<WiFi name>',psk='<WiFi password>',reboot=1}--<Base64(HMAC-MD5)>

A com_passwd field is appended when changing the password:

___VBAR_CONFIG_V1.1.0___{ssid='<WiFi name>',psk='<WiFi password>',com_passwd='<new password>',reboot=1}--<Base64(HMAC-MD5)>

ssid is the WiFi name, psk the WiFi password, com_passwd the new device admin password (optional) and reboot=1 restarts the device after applying the config.

Security Notes

The key participates in HMAC-MD5 signing and the device verifies with the same key; everything runs locally in your browser and no data is uploaded.