Microchip Technology AVR-IoT WG User Manual page 7

AVR-IoT WG User Guide
Chapter 2: Getting Started
Figure 2-4. Entering Wi-Fi Credentials in Microsite
Once these details are entered, click the Download Configuration button. This will download the
WIFI.CFG (text) file on the host PC. From the WIFI.CFG's download location, drag and drop the file to the
CURIOSITY drive to update the Wi-Fi credentials of the board. The Blue LED will light up to show a
successful connection. Otherwise, refer to Chapter 3 to troubleshoot any board issues.
Note: Any information entered in the SSID and password fields is not transmitted over the web, to the
Microchip or Google servers. Instead, the information is used locally (within the browser) to generate the
WIFI.CFG file.
2.1.3 Security Provisions
The secure element (ATECC608A), present on the AVR-IoT WG boards, comes pre-registered within the
MCHP AVR-IoT (sandbox) account on Google Cloud. Each secure element provides an 18-digit
hexadecimal Unique Identification Number (UID) and a public or private key pair, pre-generated using
Elliptic Curve cryptography. The UID can be seen on the URL of the webpage application or via the serial
command line interface (discussed later on in the document). The private key is never revealed by the
User Guide
DS50002809A-page 7
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2018 Microchip Technology Inc.