Arduino WiFi TLS 1.2

https://www.howsmyssl.com/ returns helpful information about a TLS client such as TLS version number and possible security issues. The rating "Probably Okay" is the highest possible rating.

The MKR WiFi 1010 (WiFiNINA), Feather M0 with ATWIINC1500 (WiFi101), ESP32, and ESP8266 Bear SSL all support TLS 1.2 and receive the "Probably Okay" rating.

For the details and source code see the git hub repo.

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