Heavy arduino users often want to develop in-depth functions and need to have a deep understanding of the underlying drivers.
But the unique software structure of arduino makes it more difficult for us to find the location of these drivers.
This article introduces where the driver is.
Software environment: arduino 1.8.9
Each development board has a special package, this package provides users with arduino-specific concise language support for complex operations on the hardware.
Search for the development board you want to install in the "Development Board Manager", select the version you want, and click "Install".
So where is this package after installation?
In the folder C:\Users\Administrator\AppData\Local\Arduino15\packages\arduino\hardware
Open this folder, the file structure is shown in the figure below.
The driver we want is under the libraries folder.
Take the IIS audio driver as an example. In addition to the source code, there are also routines under this folder, so that you can develop more powerful functions on the basis of routines.
In addition, there is a little knowledge to share, the arduino development board manager installs the development board support package, not all at once to the above-mentioned directory. Instead, download a compressed package first, and then unzip it to a specified directory. The compressed package directory is C:\Users\Administrator\AppData\Local\Arduino15\staging\packages.
