Don't forget, if you've never connected an CH340 device to your computer before, you may need to install drivers

for the USB-to-serial converter. Check out our section on How to Install CH340 Drivers for help with the

installation.

Arduino Library

Note: This code/library has been written and tested on Arduino IDE version 1.8.10. Otherwise, make sure

you are using the latest stable version of the Arduino IDE on your desktop.

If this is your first time using Arduino, please review our tutorial on installing the Arduino IDE. If you have not

previously installed an Arduino library, please check out our installation guide.

We've written a library to easily get setup and start using the Cryptographic Co-processor ATECC508A. If you'd

like to jump right into signing and verifying, then feel free to skip ahead to Example 1: Configuration However, it's

not a bad idea to familiarize yourself a bit with the source code behind the examples, so let's take a closer look at

the available functions in the library. You can install this library through the Arduino Library Manager. Search for

SparkFun_Cryptographic and you should be able to install the latest version. If you prefer manually downloading

the libraries from the GitHub repository, you can grab them here:

DOWNLOAD THE SPARKFUN ATECC508A ARDUINO LIBRARY (ZIP)

Let's get started by looking at the functions that set up the ATECC508A.

Setup

Creates a connection to an I C device over the I C bus using the default or specified I C address.

Input: i2caddr

How to Install CH340 Drivers

AUGUST 6, 2019

How to install CH340 drivers (if you need them) on Windows, Mac OS X, and

Linux.

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