Version 1.3.1

This release:

• Makes Serial the default debug port on all boards except SAMD21. The change covers the nRF52 series (as submitted by @HAO156 in #17 - thank you Michael)
• Adds the sleep method submitted by @ajit1433 #12 - thank you
• Fixes some unused variables warnings-as-errors
• Changes boolean (deprecated) to bool
• Makes better use of endTransmission, returning a bool to indicate success/failure

v1.3.0

ESP32 serial port conditional see pull request #9 .

v1.2.0

SHA256 hash support and example 7

PR#3
Fixing a potential Integer Overflow in sendCommand() and improving styling and inline protocol explanation

v1.1.0

adding support for Samd21 serial debug

Initial Release

Arduino Library and example sketches to go with the SparkFun Cryptographic Co-processor Breakout - ATECC508A (Qwiic)